MHZ 114 High End Build

[nata2run]

Hello Folks,
Time to build another Hi-End boat, its been awhile but I'm getting stuck into it again. Sadly this boat is not for myself but a custom build for one of our fellow forum members

Hull: MHZ 114 Carbon/Kevlar
Motor's: LMT 2240/7 LK
ESC's: MGM X2 25035
Drives: MHZ Hi-Speed Drives
Rudder: MHZ Scale
Collets: MBP
Servo: Savox 1252
Props: Andy Brown x447

This should be a very capable setup, and I'm sure a fun project to put together.

...let the build begin

[nata2run]

Couple of images of the hardware...
IMG_1190.jpgIMG_1191.jpgIMG_1195.jpgIMG_1197.jpg

[srislash]

Hey, hey ,hey. Right on my friend. Which MGM's are those ones Kent?

[nata2run]

Hey bud! They are the 250A up to 8s lipo

[Local Boy]

I really enjoy following your builds...

Looking forward to this one...

Thanks for sharing...

Aloha

[TheShaddix]

Great part list! Where did you get the high speed mhz drives? They aren't listed on the site.

[srislash]

Hey bud! They are the 250A up to 8s lipo

That's what I thought. Have you run these before? They are reasonable in my books as long as they hold up.

[nata2run]

I really enjoy following your builds...

Looking forward to this one...

Thanks for sharing...

Aloha

Thank you, keeps me on top on the build knowing I started a post LOL

[nata2run]

Great part list! Where did you get the high speed mhz drives? They aren't listed on the site.

Thanks,
The 138 Hi-Speed's were listed some time ago, When I placed the order I asked Shirley at MHZ if I could get them for the 114 and she sent them :)

[nata2run]

That's what I thought. Have you run these before? They are reasonable in my books as long as they hold up.

Never ran those, but I have good experiences with MGM in general and have seen some heavy abuse on the 25065 without failing. I'm positive they will hold up fine for this project and have good control over the LMT's

[TheShaddix]

So you're using drives made for a 138? OR they have 114 drives but just don't list them? I would be really interested in these drives too! The mbp ones are a bit too costly.

[nata2run]

The drives are made for the 114, but cost wise they are close to the MBP mini drives. But keep in mind these were made specific for the 114 and you don't have to modify or shorten them in any way. They seem like a cool design with small "fins" on the tip of the drives. If proper installed in line, I think they will perform very well.

[Pheyd]

Those are some mighty fine parts. Looks like another great build!

[nata2run]

Hello again,
Thanks Pheyd :)

I got some more work done last night (I'm always a day ahead of the post by the way LOL) as most of you have seen, I'm a fan of templates, jigs and tools in general that will make the job easier for me. That said, it don't mean that it cant be done in other ways, I just don't like taking risks that result in "fill in epoxy jobs" Since I was dealing with a new power drive I had to make a completely new jig. This new drive uses 2 M4 screws appose to 3 M3 in the standard drives. It also requires a smaller hole for the stuffing tube as it don't have the bushing/bracket on the inside of the hull. In my book, this calls for an even more precise drilling and alignment. (because of the 2 point hold down compared to 3). This is how I did it. I first apply a few pieces of masking tape on the hull. 2-3 layers are usually good! once that was in place I used a scalpel to cut off the excess tape from the edge. After I pealed off the tape gently and applied it onto a standard sheet of paper and scanned it with my scanner. From then on I traced it and did a print out to see if it all fit. At this point I realised that I needed to lover the drives by a mil or so (1/20') roughly.
IMG_1186.jpgIMG_1189.jpg
...continued

[nata2run]

...After all that was completed, and I redrew the jig, I cut it out in 12mm acrylic (1/2") Before any further actions I had to make sure the drive train would fit as planned. Here is the complete unit. I should mention I'm using an aluminium 8mm tube to fit the thick walled teflon stuffing tube.

IMG_1200.jpgIMG_1202.jpg

Here is the final jig ready to install on the hull

IMG_1203.jpg

Now to the very important part! Since I was asked about drilling holes, I will elaborate on the subject a little closer than planned.
I always make a habit of using tape for cutting/drilling/milling, sometimes multiple layers. The reason for that is, most tools (drill bits, router bits) are up-spiral, meaning they exhaust their cuttings away from the material. That also mean that they "eat" what they come in first contact with. If its gelcoat, it usually result in chipping. By using tape and a jig it will eliminate that with up to 90%. By using a high speed drill it will eliminate that even further. Vibration from the drill is also a major issue, again the jig will help to reduce the vibrations. I even have jigs made up with pre-drilled holes to keep the drill vibration free (egg shaped holes) when just drilling a random hole.