Page 3 of 7 FirstFirst 12345 ... LastLast
Results 61 to 90 of 194

Thread: Starting 1/8 scale T5 build, need critique of my proposed setup

  1. #61
    Join Date
    Jul 2014
    Location
    MI
    Posts
    288

    Default

    Morning Nic...

    Looks like your on your way to making progress. I use 30min Z-Poxy on a lot of the mounting and gluing of the various components in the boat such as the motor mounting plate, servo ply plate, stuffing tube (with west system filler additive), battery trays...etc. I also use the West System epoxy with 205 hardener with a bit bigger jobs like coating the tub sections or coating other wood parts where I can use the full amount of epoxy that the West System pumps put out. The Pump systems for West System are great....they measure out the correct amount each time the pump is fully depressed. The bad thing is that if its a small job you will be wasting a lot of good epoxy. So you have to plan well in advance so to eliminate as much waste as possible. I have been using Z-Poxy for quite some time on aircraft also and it has worked very well. You can also thin it down if needed with some denatured alcohol for coating purposes. I only use 5min epoxy or JB Weld in areas that are not high stress areas but have good bonding qualities to other epoxied or fiberglass surfaces.

    It appears that the bottom of the hull is pretty well reinforced with the foam core and all. On my wood build I used just some light glass cloth on the motor mounting plate and over the stuffing tube and the hull bottom is only 1/16". Its actually quite strong. Now I did add some carbon fiber in the rear section for the strut mount to help reinforce that whole area.

    I had tried to bend the stuffing tube with a tubing bender and I did not like how it came out. It left small little ridges in the tubing and I figured that was just more surface friction on the shaft. So I cut another piece of 5/16 and bent it by hand. You will be surprised on how easy it will bend in your hand. Not much force needed at all. TAKE YOUR TIME!....LOL Insert the straight 5/16 into the 11/32 log tube within 1/4 inch of the motor shaft coupler and have your shaft strut inserted to the appropriate height. [Mine was at about 1 1/8" from the bottom of the boat to the bottom of the strut, but confer with Phil on this particular boat]
    Then mark the stuffing tube exiting the log tube below the boat on where you want to start the approximate bend to make a gradual bend that will meet on a straight line to the strut. Bend a little....fit, Bend a little and trial fit until it fits perfectly for you. It was actually quite easy. No Heating is necessary.

    Hope this helps..

    Mike

  2. #62
    Join Date
    Feb 2010
    Location
    il
    Posts
    166

    Default

    Quote Originally Posted by nichismo View Post
    okay. I was considering putting a lipo pack inside the actual hull through the tub wall holes, and theyd probably be parallel with the motor or just a tad farther up, but im just going to place them inside the engine well to be sure they will be in the safest, driest position. What is the perspective on mounting a servo straight up vs sideways? if any

    Is it worth laying carbon fiber fabric or kevlar throughout the tub in a fiberglass hull like how the wooden builds are? or am I better off only adding what I need essentially and nothing else?
    No need for carbon fiber in the engine well, there is 3 lays of 6 oz cloth in those hulls. Dont matter which way the servo sits, get a good mount and epoxy or screw it down. You could mount the servo in the engine well wall too.

  3. #63
    Join Date
    Feb 2015
    Location
    wa
    Posts
    393

    Default

    Happy Easter guys!

    Speed, every message or post you have made has literally been helpful for me. The motor mount and some more cooling hardware should be here tomorrow according to USPS tracking, so Tuesday at the latest. Im so excited to finally get started, once I have all the holes and cuts made, and majority of components ready to mount, and all the woodwork and internal pieces made, ill be ready to start prep for the paint! Real stoked for that. I cant believe how much my perspective has changed since I first started looking at a UL-1 not that long back, haha. Since then, ive done plenty of research and learned alot, but even more is a better overall understanding of the fundamental big picture with rc boats and hydroplanes in specific. This forum and community really is great, members truly wish to help each other no matter what their background, and even when they perhaps disagree with the motifs behind the person their helping. I really appreciate just how many of you guys have been following through in this thread on how my project is going/will turn out :)

    I was thinking of buying some of the radio gear today, im making another order here on OSE, perhaps one of the last one before I purchase batteries and other gear for the maiden voyage. Ive noticed the aluminum anodized servo mounts that are adjustable in width are pretty popular, but I was curious how the servo is secured? It seems like they just sit inside the mount... What kind of linkage hardware do I need to get for the rudder attachment? Here is a couple things I may order if you guys give me the green light... Im sensing I might need something a little more sophisticated maybe?

    -2.4 Radio http://www.offshoreelectrics.com/pro...od=dh-futk1300 (I sort of want to get a Futaba as ive heard that the antennas can be virtually nonexistent from view outside and still give great reception, I really dont like the look of antennas)
    -Servo http://www.offshoreelectrics.com/pro...od=dh-hs-646wp

    Also, I have been thinking of buying a prop balancer, like the Grimracer one. I want to be able to experiment with as many props as I can, especially since I wont have exactly the best ESC around for some time. If I learn to sharpen props thoroughly, then obviously that will grant me the freedom wo purchase several props rather than finding someone to do it or paying a ton extra for pre sharpened and balanced props that end up not being optimal. Thoughts?
    Last edited by nichismo; 04-05-2015 at 04:41 PM.

  4. #64
    Join Date
    Feb 2015
    Location
    wa
    Posts
    393

    Default

    okay im a little confused here now after researching prep work on fiberglass in boats and doing a little sanding on the seams on my hull.

    I have read Phils prep instructions several times and have a good idea of what to do now to prep the hull for primer, but I cant even remember exactly why I started reading any articles or discussions on the subject, but what exactly is the difference between the fiberglass hull I currently have, and common hulls that utilize a gelcoat? I was reading that its very important to thoroughly clean then hull of any potential waxes before sanding, which I didn't realize. Trying to get a straight clear answer on the difference has been very conflicting and difficult, and I see debates all over....

    Certainly gelcoat isnt just for cosmetic purposes correct? When I was looking at hulls before I decided to go full blown scale, I was really considering the T5 and twin wing hydroplane hulls that Hydro&Marine in germany make. They look fantastic from a overall shape and aesthetic standpoint, and if they werent in Germany, I probably would have ordered one. But I couldnt stand the gelcoat! After seeing some peoples build threads for those hulls, their pictures looked far worse than the hulls posted on their website, and I couldn't stand the dull, tacky looking color of the gelcoats. and I know painting them would not be an easy task, as the gelcoat doesn't adhere very well obviously.

    Anyway, once again im just being paranoid but I want to make sure I do everything right. But for prep, to sum it all up, I basically just need to fix any imperfections like the pinholes and "remove" the seams, then scuff the entire hull down to a dull finish so the primer can stick well. Anything im missing?

  5. #65
    Join Date
    Mar 2014
    Location
    Ma
    Posts
    1,951

    Default

    Gelcoat is the best primer.
    Just sand it and paint. Having bare fiberglass is way more work.
    I would have gotten one gel coated.


    Sent from my iPhone using Tapatalk
    There's a hole at the center of earth where the rest of the world sinks but i stand still...

  6. #66
    Join Date
    Feb 2015
    Location
    wa
    Posts
    393

    Default

    Quote Originally Posted by Luck as a Constant View Post
    Gelcoat is the best primer.
    Just sand it and paint. Having bare fiberglass is way more work.
    I would have gotten one gel coated.


    Sent from my iPhone using Tapatalk
    so much conflicting info.....but OSE is the best

    im hearing a tad moreso that gelcoat is a PITA to paint.

    If you have to sand it down, then it requires extensive cleaning from wax. What exactly is all this extra work? This hull looks absolutely amazing, and ive barely worked on it yet, but im not worried as much about making any minor mistakes because I know it will be easily fixable. Gelcoat seems to be difficult to repair too. I feel like real boats like Bayliners and maxums can have a white gelcoat and that be the perfect choice for its situation. But for my scale hydroplane it just doesnt seem right to recieve the hull with a color gelcoat, I feel like it deserves a paintjob thats similar in process to a custom automotive job. and I would assume that whomever sells the hull didnt gelcoat it that color as a primer. When I see the pros and cons of a GC finish, the reoccuring pro and purpose of it is to provide a specific finish and pigmenting being a feature to improve glossy appearence. Why do that if you intend to just use it as primer?

    its really confusing! lol. regardless I had enough trouble as it is getting my hands on a race compliant modern hull as it was, and I dont remember seeing much, if any gelcoats
    Last edited by nichismo; 04-29-2015 at 08:54 AM.

  7. #67
    Join Date
    Mar 2014
    Location
    Ma
    Posts
    1,951

    Default Starting 1/8 scale T5 build, need critique of my proposed setup

    Because it eliminates the need for primer.
    You're overthinking this and reading too much


    Gel coat
    1. Sand
    2. Paint


    Fiberglass
    1. Clean
    2. Sand
    3. Prime
    4. Sand
    5. Paint.


    Hope this clears it up
    Here are some I painted that were gel coated

    I sanded them with 800 then painted.



    Sent from my iPhone using Tapatalk
    There's a hole at the center of earth where the rest of the world sinks but i stand still...

  8. #68
    Join Date
    Feb 2015
    Location
    wa
    Posts
    393

    Default

    Quote Originally Posted by Luck as a Constant View Post
    Because it eliminates the need for primer.
    You're overthinking this and reading too much


    Gel coat
    1. Sand
    2. Paint


    Fiberglass
    1. Clean
    2. Sand
    3. Prime
    4. Sand
    5. Paint.


    Hope this clears it up
    Here are some I painted that were gel coated

    I sanded them with 800 then painted.

    Sent from my iPhone using Tapatalk
    You painted those yourself? thats awesome! all of them look stunning

    I mean why is it the best primer? er, it eliminates the need for primer, but its not just exclusively for that right?

    obviously its not important nor relevant right now, im just wondering moreso. I enjoy all sorts of applied sciences with almost anything, it satisfies my natural curiousity.

    But I wouldn't have taken up this project if I was worried about the amount of work, clearly. Unless a colored gelcoat would have provided a superior scale resembling paintjob (which would mean it is both far less work and also provides a better finish which seems a tad bit absurd lol), I wouldn't have noticed anyways probably, as I won't be doing the painting and I havn't built enough scale hydroplanes or even rc boats in general to be able to compare.

    I dont want to derail the thread but in clarifying what prep I should still do before taking it to the shop, it will probably make sense based off what youve told me. Your right though, im overthinking it, my apologies, I tend to do that alot with numerous things. I just want this to be perfect, it is my first build too >.<
    Last edited by nichismo; 04-05-2015 at 09:19 PM.

  9. #69
    Join Date
    Mar 2014
    Location
    Ma
    Posts
    1,951

    Default Starting 1/8 scale T5 build, need critique of my proposed setup

    Thanks.
    Yes I painted myself. I paint cars for a living.
    It's the best primer because you won't need to prime yourself.
    Why bother priming when the gel coat can be sanded easily then painted over?
    Gel coat isn't put on as s primer, and can be left alone and used as is.
    But it can be painted easily.
    Primer needs to be painted over where gel coat doesn't if you don't feel like it.



    Sent from my iPhone using Tapatalk
    There's a hole at the center of earth where the rest of the world sinks but i stand still...

  10. #70
    Join Date
    Feb 2015
    Location
    wa
    Posts
    393

    Default

    ah gotcha, that makes perfect sense actually lol.

    But ya, I really struggled to find any hull in general that was of compliance with the scale rules of most organizations. To be honest, I wanted a 1/10 scale but I didn't even sniff a chance to even get on a waiting list to have one custom made. Since its my first build too and 1/8 scale hydros have more a history and following at the moment, it made sense to just go with the 1/8. I had been hearing a ton of positive feedback for Phils hydros too, and he completed it for me extremely fast, and made a few custom features at my request that I really like :)

    Among all the hulls I looked at, the closest thing to what I wanted that has a gelcoat was this T5 from hydro marine in Germany, and although its got decent looking dimensions and shape, its not race legal and at nearly 400$ for 1/10 scale thats probably going to take about 5 weeks to recieve, I ended up never looking at it again. They offer this blue, a yellow/orange color and white. This one in particular looks pretty bad in my opinion.

    hm5.jpghm4.jpghm3.jpghm2.jpg

  11. #71
    Join Date
    Mar 2014
    Location
    Ma
    Posts
    1,951

    Default

    yeah, i mean, if ya can't find one with gelcoat then you prime yourself. but if the option is there i always go for it.
    There's a hole at the center of earth where the rest of the world sinks but i stand still...

  12. #72
    Join Date
    Feb 2015
    Location
    wa
    Posts
    393

    Default

    My package from OSE with the new motor mount is waiting for me when I get home from work. Im going to work all evening until bed, I want to get as much done as possible, as I know whatever idea i have in how long I estimate each process will take, I have to be extremely patient and observant, so in the end its all probably going to be twice as long or more than what I anticipate.

    I bought green, red, and yellow 3m sanding blocks yesterday, along with plenty of different grits of sandpapers, some JB Kwikweld, 3m bondo glazing spot putty and a putty knife, rubbing alcohol, and several small clamps. I already started very light sanding of some of the side seams on the boat, and marked all the pinholes that I could find so far. I also outlined all the marks Phil had made for cutting. I hope I can get the stuffing tube mounted and basically the whole flex shaft and strut assembly, and motor assembly mounted and curing overnight. I have the day off from work tomorrow so Ill be able to immediately pickup where I left off in the morning. Ill be sure to take plenty of pictures as well.

  13. #73
    Join Date
    Feb 2015
    Location
    wa
    Posts
    393

    Default

    Hey guys, just making a minor update. Yesterday I went to hobby lobby and picked up a good amount of plywood and basswood sticks so I can start planning out the electronics box lip and cover, as well as some wedges and blocks for the motor and ESC mount.

    it turns out that the motor mount I bought with the ESC mount on the top isn't really optimal for this hull. The engine well isnt very deep, even where the belly pan is and the rails that came with it dont really provide the largest spectrum of adjustment. The overall frame of the mount is too wide and is would force me to take on a far more complex electronics box with a flush cover that can be easily tape sealed. I really wanted to mimic the electronics boxes from Speeds and Dons elam builds, and I have to be able to run a flat lip alongside the walls of the engine well. Its very clear to me now why all the FE builds are with wood kits, and I can see why Don F was mentioning against a fiberglass nitro intended hull for an FE build.

    so I am going to be using the first mount I purchased, its actually suprisingly secure and robust, but im still going to add some extra support to the opposite side of the motor. Im going to craft a slight wedge to slide under the mounts legs to create a better angle for the stuffing tube, and im going to have a thick stump inbetween the wedges, shaped and contoured so the motor can sit comfortably on top, ill probably epoxy some rubber or nylon or something on it too. This going to make the whole sealing process I just described tremendously easier. Ive also got an aluminum plate that is perfect for me to mount an ESC to, and im going to have it attached in each corner with aluminum threaded spacers, and then bolted and threaded into wood blocks placed on each side of the motor, so Ill be able to mount the ESC in the same fashion as the original mount would have intended. If I need to get to the motor, all ill have to do is just unscrew the bolts on top of the plate in each corner.

    Im almost done sanding the hull, ive nearly smoothed out all the seams around the boat using the coarse 60 grit green pad. I just need to flatten out the back transom and scuff the rest of the surface of the hull. Then ill go around the boat with some filler for all the pinholes ive opened up, and then after I finish drilling all the holes for the hardware and stuffing tube, ill put the first coat of primer

    I also found this thread on RC universe regarding a build by another fella from here in Washington, its provided a little bit of insight for my build. Hes using a T6 hull basically from steve at RCboatcompany. Although I would like for my finished interior to have a cleaner look overall, he sort of made me feel as if it doesn't have to really be very complex. He also mounted his lipos in the compartments where the fuel tanks would normally be, however he never really discussed how the electronics are sealed off.

    http://www.rcuniverse.com/forum/spee...ane-build.html

    ive also looked at this thread, along with the gallery linked in the OP for some time now. Gosh that hull is absolutely beautiful! Whoever picked up that entire package for 750$ got quite a deal, I wish I could see how that project turned out!

    https://forums.offshoreelectrics.com/...special-for-FE

  14. #74
    Join Date
    Jul 2014
    Location
    MI
    Posts
    288

    Default

    Nic....

    Sounds like you have things on the move. Be great to see some pictures as you progress. Yes there are always a lot of options out there and you really have to finally make a decision on what will work out best for your application.

    I agree with MTD.....Gelcoat is a great primer actually. Worked for US Yachts (Bayliner Marine out of Arlington, WA) for years. Nice thing with the gelcoat finishes is they seal the glass with superior strength and then of course can be sanded and buffed out to a real nice finish. But also they can be easily sanded and painted with various finishes. As said before with an unsealed fiberglass hull there is a little more work to be done, but I really don't consider it to be any more work than a wood hull. What has been maybe missed here in the explanation is that the epoxy / fiberglass resins that are used in building these hulls (Or a real fiberglass boat hull) give off a gas as it cures. As the gases are expelled it leaves behind a waxy type of film on the outside that needs to be cleaned [I usually use denatured alcohol although some folks use acetone] ..then I'll lightly sand the finish to get a good area for primer adhesion. I have done this even on my wood hull build where I need to epoxy something else into the boat that has already been epoxy coated. The whole exterior of the boat will be coated in epoxy then cleaned and lightly sanded before the primer coat goes on. No different than what you will be doing except that the hull has already been coated. Just clean it down, lightly sand, prime, very lightly sand, wipe it down very clean and paint.

    Keep us up to date on how things are going.

    Mike

  15. #75
    Join Date
    Feb 2015
    Location
    wa
    Posts
    393

    Default

    I spoke with Phil regarding prep work and paint (albeit a bit prematurely), and he recommended a couple products that sounded like a good purchase, so I bought a couple things over the weekend. I went to a marine shop near my marina and picked up some 104 West systems epoxy resin and 205 hardener, and I ordered Klasskote primer, catalyst and reducer offline, so once I finish all the component mounting and accommodations, ill be pretty close to getting it painted. However, I think I may have made a little bit of a mess, I never even cleaned the hull at all prior to some of the sanding ive done, I think I may have sanded some dust into the hull.... but ive gone around and opened practically every pinhole I can find. After I finish installing all the components, im going to bondo some of the hull, sand, bondo a little more if needed, then primer with the klasskote (this stuff is pretty thick and works as a filler too, I will be brushing/rolling it on, and more pinholes may be revealed, in which ill simply just use my fingers to rub in a little more primer). I am also going to epoxy the cockpit and cowling together today.

    I drilled holes and cut a slot for the rudder and strut assemblies. I was a little excited and perhaps mounted the rudder a little too close to the center of the transom.... but other than that it came out good. I havnt actually installed the strut assembly yet, as I am still filing the slot out to size, but im really happy with how the positioning of the holes turned out. I think I may need to cut the long screws that came with my rudder assembly, as they are long and slightly angled, so i cant currently screw on the nuts for the bottom two screws, as they hit the floor.

    I am ordering a new canard as well as aluminum mounting brackets for them from Steve at Rcboatcompany. The canard that Phil gave me seems a tad bit thin to my eye, and the canard available from Steve will be a half inch thicker.

    The wood joist I made was for the new motor mount, I just sort of winged it and got a little overzealous, but it can give you an idea of what im trying to do now. Im basically now just taking a 1/8" sheet base, with just two angled wedges to help the motor get to a better angle, or else the stuffing box tube is going to be too far towards the transom to work.

    Im placing another order with OSE today, im going to order Hitec ultra torque waterproof servo and a servo stand, some carbon fiber in case it comes in handy, an oil fitting mount for the stuffing tube, and some minor hardware. Anyone have any other suggestions on thigns I may need to purchase?

    Also, I have been considering purchasing a new ESC or perhaps just getting a NEU 1527. The motor I have is still brand new, and im very new to driving, so I figured a NEU may be too much power. I figured an ESC would benefit me in the long run and provide a better foundation for any future upgrades I may want. but then again, I could just stick with what I have for now if I shouldnt waste my money (leopard 835kv 5698, SwordFish 240amp HV, older refurbished model)

    myhydro.jpg20150411_081918.jpg20150407_064846.jpg20150409_222641.jpg20150409_203433.jpg

  16. #76
    Join Date
    Feb 2015
    Location
    wa
    Posts
    393

    Default

    Okay, so I just got done installing the strut assembly! I put almost as far forward as it can go. Its kind of odd, the screws that were included with the strut have some strange sized allen key head.... I have both metric and standard allen key sets because I had come across a similar problem before in the past, in yet I couldnt find anything to fit snugly enough to simply tighten the bolt and nut together! So I ended up using some different bolts and nuts, they are M4 sized which I really like and use all the time in all sorts of things, but I noticed they are a teeny weeny tiny little bit smaller than the normal included screws.... I still need to sand down the inside of the strut in order for the 5/16 tubing to fit in snugly. I havnt found any adhesive sandpaper though, I might just superglue some to a drill bit if worse comes to worse. I have to go to work in a few hours, but im going to have a good amount of stuff curing while im away, then when I get home tonight I should be able to cut the hole for the 11/32 stuffing tube and have the cowling and cockpit epoxied together. Theres only 1 pinhole I noticed on the cowling, and the cockpit is good, so im just going to cut out the windshield and then it should be good for cleaning and sanding. Im just going to have the saltwater scoop cut out in the front and leave the normal cowling the way it is for now.

    strut3.jpgstrut2.jpgstrut1.jpgstrut0.jpgstrut.jpg

  17. #77
    Join Date
    Jul 2014
    Location
    MI
    Posts
    288

    Default

    Looks like some nice work Nic.

    I know my stuffing tube fit quite tight in the strut and I had taken some 400 wet/dry and very lightly sanded the tube. Then clean it very well with alcohol. The slightest amount of metal dust and it won't go in smoothly. It doesn't take much to get it to fit tight but smoothly.


    Mike

  18. #78
    Join Date
    Aug 2011
    Location
    or
    Posts
    152

    Default

    Its kind of odd, the screws that were included with the strut have some strange sized allen key head....



    All they are is standard 3/32" allen heads, nothing odd or special about them.....

  19. #79
    Join Date
    Feb 2015
    Location
    wa
    Posts
    393

    Default

    I've only tried 1 of the bolts but I have 2 sets of both metric and standard sized Allen keys and I can't get a snug fitment. that's what I mean when I say special, I'm nit a TOTAL idiot, lol

    Quote Originally Posted by Speed810 View Post
    Looks like some nice work Nic.

    I know my stuffing tube fit quite tight in the strut and I had taken some 400 wet/dry and very lightly sanded the tube. Then clean it very well with alcohol. The slightest amount of metal dust and it won't go in smoothly. It doesn't take much to get it to fit tight but smoothly.


    Mike
    Thanks mike, I had to remove the rudder and strut and im going to re drill some of the holes. I needed to move the rudder to the right more, as it was far too close to the transom center and wouldn't have turned well, and blocked some of the area I need for my wing stabilizers I also need to move the strut towards the front more, as the drive dog wouldn't have been underneath the boat.

    I'll post pics soon, I'm going to polish my hardware, fill the holes in the transom and drill new ones and remount everything.

    I also purchased my THIRD motor mount earlier, this one finally will be perfect and be a snap to secure to the bottom, I'll cut a couple slots in the foam floor and epoxy it.

    MBP_CNC4640_2__31457.jpg

  20. #80
    Join Date
    Feb 2010
    Location
    il
    Posts
    166

    Default

    The strut should be fine, dog don't have to be under the boat. eversee a real boat transom? the prop is out behind the hull.
    Nice work so far.

  21. #81
    Join Date
    Feb 2015
    Location
    wa
    Posts
    393

    Default

    ok sweet, I ordered the "authentic scale" strut from Accu-tech because I liked how it resembled the real hydroplane struts and they also have this picture displayed on the information page of their website for the 1/8 scale hydro hardware:

    Authentic_Scale_Strut2-357x238.jpg

    But i was confused because ive been told from some that the rules of 1/8 scale organizations require the drive dog to be underneath the boat... so I was going to maybe cut part of the strut off because I didnt want to redrill those holes

    I guess I might have gotten 1 bad screw because I have an allen key that works fine for all the other screws, for some reason 1 of them is just a tad too small
    Last edited by nichismo; 04-13-2015 at 06:39 AM.

  22. #82
    Join Date
    Feb 2010
    Location
    il
    Posts
    166

    Default

    yea you will hear a lot of misinformation. Try looking it up in scale rules first.

    9. The propeller drive dog may extend one drive dog length beyond the transom.

  23. #83
    Join Date
    Aug 2011
    Location
    or
    Posts
    152

    Default

    g. The drive dog must not extend beyond the transom unless the prototype boat did so. Not misinformation-just depends on who's rule book your are following.

  24. #84
    Join Date
    Feb 2015
    Location
    wa
    Posts
    393

    Default

    Quote Originally Posted by Agitator View Post
    g. The drive dog must not extend beyond the transom unless the prototype boat did so. Not misinformation-just depends on who's rule book your are following.
    Michael you have been beyond helpful, I really cant begin to thank you, your genuine concern for my project has been overwhelming and very encompassing. as per usual with the internet, there are always abundant misguided homers who want to either spew misinformation for petty amusement, or simply believe they truly know everything and feel better when they possess others with a similar philosophy to that of their own. I think thats what Phil is referring to to be careful of, but I build performance workstation and gaming computers and have spent far more than my fair share of time on the internet, I have a pretty good perspective at this point on what I judge to be decent resources and what aren't. That being said, I have never even remotely encountered any other hobby or interest that has been so welcoming and helpful and provided a solid foundation of good info, I appreciate that alot guys. Its too bad OSE doesn't have a reputation system like some other boards do, I always see posts that I would love to give the poster a positive rep point for.

    To be honest im not that familiar with any specific organizations quite yet, other than Classic Thunder, and even that I am still very foreign too (they are 1/10 scale anyway). Ill probably end up waiting until I am actually intending to participate or at least register with a sanctioned event to make any modifications to the strut assembly. BTW Michael, did you recieve my last email?

    I refilled the older 5 transom holes and drilled 4 new ones, I lined up the rudder blade with the right side tub wall. I have also started polishing the Rudder blade, ive worked through 320 and 400 grit, certainly removed the factory machine marks and then some. Sort of unsure of how long to sand for at this point, but ill work up to 1000 and then use the polish cream you recommended. Hope to get that razer sharp mirror finish! Ill post more pics later tonight

  25. #85
    Join Date
    Feb 2010
    Location
    il
    Posts
    166

    Default

    Quote Originally Posted by phil t View Post
    yea you will hear a lot of misinformation. Try looking it up in scale rules first.

    9. The propeller drive dog may extend one drive dog length beyond the transom.
    Nick runs Namba that is the Namba rule.
    Impba is similar just dont call out drive dog position old boats under the hull modren ones can be behind hull

  26. #86
    Join Date
    Feb 2015
    Location
    wa
    Posts
    393

    Default

    Hey everyone, hope your all having a great weekend, the weather up here in Seattle is gorgeous!! too bad I have to go to work later today.... hah.

    Anyway, I thought id post an update, as I feel like I am sort of overdue for one.

    I filled in the holes in the transom from the previous position of the rudder, I just used some wood filler for most of the hole and then just filled over the top of them with west epoxy, so now they aren't even really noticeable. I also polished the rudder to the best of my ability, however I was missing 600 grit sandpaper, but it turned out pretty good, and I havnt even done much as far as the last stage of polishing goes, so im sure it wont take much to get it to a mirror finish :) I have a Virginia Craftsman turn fin mount coming in the mail, and im going to get started on polishing the turn fin so its ready to mount when the bracket gets here. I also bought a few thread taps for the aluminum inside the sponson.

    I finally finished crafting a solid mounting solution, after buying my 3rd mount, this one being a 56/58mm mount by MGP and I purchased it from rocket city racing. Its made from black composite fiberglass I believe, its an interesting material.... I thought at first looking at the pictures that it would be carbon fiber, but its robust and certainly going to get the job done :) At first, I was frustrated upon recieving it, as I quickly realized when I tested the mount inside the hull tub, that the side supports of the mount are placed apart in such a fashion that they literally fall exactly on the slants in the floor for the belly pan. So for this, I decided to just cut a piece of 1/8" ply for a base to extend the width of the hull tub, with some 3/16" blocks to brace the mount into position. I then sanded the edges, cleaned it with a tack clotch, then put a coat of west systems epoxy over it. I then JB welded the mount into place, and then put another coat of west systems epoxy over the blocks and crevices where the corners of the mounts sit to really solidify everything.

    20150417_211559.jpg20150418_023514.jpg20150418_090808.jpgr.jpg

    Also, I have had a small L shaped piece of aluminum that I was able to bolt onto the bracket to serve as an ESC plate, and it appears as though it may work. Im going to add some velcro/fasteners of some sort, in addition to the typical straps to make sure it doesnt move.

    Lastly, I need to get to work on the cowling and cockpit. I want to fix the cockpit and cowling into one piece, but im not quite sure how I should go about this. I see alot of people cutting off some of the cowling, and removing both the front wall of the cowling just under the air scoop, and the back wall of the cockpit so that theres no barrier underneath, however the windshield and driver is a very important feature for me, I want it to look as real as possible, so I was a little concerned as to how that may effect the look of it in the end. I also was hoping someone could provide a little insight on reinforcing the inside of the cowling with wood and floatation, and adding some stiffness, as I am unsure of how much actual "fitting" of the cowling I should do. It seems as though it already fits the hull perfect, but im not sure if when adding the ply doublers, should this enable the cowling to have a base that just sits on top of each deck, or should the ply be up and inside the cowl so that the base would sit down flush on a lip of some sort. Hope thats not too incoherent... haha, but as you can see, im obviously a little lost.

    My order of Klass Kote white epoxy primer, catalyst and reducer came on thursday. Im pretty excited to try this stuff, as it seems ill be able to save alot of trouble and work, as my complete lack of experience with painting and finishing/prep of this type worries me. Ill probably prepare the salt water scoop for primer soon, and that will be somewhat of a canvas for me to get my first practice with :)

    once again, thanks for the help everyone, each day I get more and more excited for her maiden voyage. Cya later, have a fun and safe weekend!

    I just placed an order with OSE for a few more components, so some of the build progress will have to wait until I recieve them early next week.

  27. #87
    Join Date
    Feb 2015
    Location
    wa
    Posts
    393

    Default

    rest of the pictures of the motor mount:

    20150418_090832.jpg20150418_090922.jpg20150418_091928.jpg20150418_092820.jpg

    To fix it into the boat, Im going to bolt it to the floor. Ill drill 4 screws through the corners, and counter sink them so they dont produce any drag.

  28. #88
    Join Date
    Jul 2014
    Location
    MI
    Posts
    288

    Default

    Lookin Good Nic.....

    That motor mount should work out pretty nice. Why exactly are you moving the rudder mount?
    I also made the decision to go by the NAMBA rules where I can have one drive dog length past the transom. Figured I would be running the boat mostly in NAMBA events.

    Keep the pictures coming...like seeing new ideas for various set ups.

    Mike

  29. #89
    Join Date
    Feb 2015
    Location
    wa
    Posts
    393

    Default

    forgot to add one last picture, I drilled the 4 holes and bolted the ply to the hull, made a small layered chip in one of the corners though. looks solid none the less.

    20150418_140328.jpg

    Speed, ive actually already moved it. if you look at the older pictures, the rudder was too close to the center of the transom, it would have impeded the wing stabilizer rods and maybe even performance.

    Ive got some ideas for the next few assemblies, I'm going to be having some carbon fiber and cnc aluminum stuff fabricated. I'm running ideas as much as possible, like potentially just making a single piece lip and 2 bulkheads out of carbon fiber or aluminum and using that to seal the inside off instead, or a custom mount to hold the lipos up agains each other but on their thinnest sides facing the floor instead.

    the build was really difficult to get off the ground at first, I really had trouble trying to under stand the fundamental dynamics of scale hydros and especially how electric in a nitro hull demands such a different landscape. but I'm finally getting into a groove and believe I can start using my own judgement confidently

  30. #90
    Join Date
    Feb 2015
    Location
    wa
    Posts
    393

    Default

    Sup guys, just thought id post an update.

    I made some progress on my build, I'm starting to gain some confidence with this whole process, I'm not so hesitant to make my own judgement calls now lol. After today, I feel as though I completed most of the stuff I was most concerned and oblivious to going into this project.

    so again I decided to use a different mounting setup, But for the better. I ended up cutting two slots into the foam like Phil and Michael recommended, and then I glued two angled wedges into them, along with a base plate on top of those for the actual mount. after the epoxy dried I fiber glassed the mount to the base, and I also fiber glassed the bottom of the foam slots before putting the wedges inside. It was sort of a PITA to fiberglass the motor mount legs to the wooden base plate due to the narrow and thin shape of the cloth I was using, and as a result it doesn't look to great right now. Im going to sand and file most of the stuff on the top of the mount legs and just leave the rest the way it is. Mainly it was for peace of mind, It felt a little unsafe using such a big motor in a mount of such simple stature in this configuration.

    So I got the 11/32 tube and stuffing box mounted, it's strong as hell! First i placed some 3/16 blocks around the slot in a U shape, and sealed them with west epoxy. then I used a 1/4" drill bit in the collett to line up, and then I used a little JB kwik to tack the tube into place, and after a few minutes and cleaning of the area and taping the bottom, i poured in a couple coats of west epoxy and silica. After they all dried a bit, i glued the top cover on the stuffing tube box. I was hoping to be able to use one of the oil mount fittings here on OSE, but I dont think I will have room for it now, so perhaps ill just solder a small piece of tubing on or get a Tbar with an oil fitting. Now that I finished that stuff, i Got Alot Of Cleaning and accommodations of the area to do for the last few components, like fairing and smoothing out the bottom exit of the tube, and theres extra epoxy dried up all over the tub floor plus the holes I had to fill in from the last mount setup I experimented with added to the mess...... but I'm pretty happy with how i did overall. :)

    Additionally, the newer Swordfish 240hv ESC that I bought off the marketplace arrived today. Its much nicer and I feel much better with this one, but its far bigger than I was anticipating! And I dont have a top plate to mount the ESC with my motor anymore, so I am really wondering where I can place this without compromising performance or battery pack position.

    Lastly, I used a rotary tool and started cutting out the windshield holes and air scoops. I want to add the ply doublers and begin paint prep on the cowling, but I know I need to finish other stuff first. Mainly, I need to devise and complete the lip and lid for sealing the engine tub with a sub hatch. At first I was thinking I would just do it exactly how all the common ML 1/8 scale hydro kits are, but then I was looking at the MLboatworks/PTI Tunnel FE kits and I really liked how those radio box lids are setup. So for now, I am going to slightly draw inspiration from those. Ill have more pictures up ASAP with that whole step, because Im sure I will having tons of questions and problems throughout.

    20150425_125000.jpg20150427_114704.jpg20150427_141202.jpg20150427_174221.jpg20150427_174657.jpg

Page 3 of 7 FirstFirst 12345 ... LastLast

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •