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Hello Guys,
thanks again for the Kudos!! Only a few minor things to do, especially the stuffing tubes and then you can expect to see a video of the first start of the turbines.
Best regards,
ManuelComment
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I don't know what to say....
And thank you for sharing this magnificent work!Disclaimer: I hereby accept the potential loss of motor, ESC, entire boat, or credit rating, and forfeit all expectations of success.Comment
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Manuel Im new to boats so I dont know much but after looking at this project and the attention to detail on this is beyond imagination.Comment
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Excellent build and thread showcasing the process. Curious though. If he had to place a price on this build, how much would it be? Lots of custom and fine detail you don't even see on a full size boat which makes it even a more impressive build.Comment
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Hello,
Is there video of this beauty on the water yet? Did I miss it somewhere else here on the forum?
Can't wait!They call me DOUBLE D
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GREAT build, attention to detail, quality and engineering is beyond incredible. If I had the time, money, machinery, and talent to build something like this I would. Can't wait to see some videos!!! I'm curious (I'm sure everyone else is too) as to what the total cost is at right now?Real men have shafts.Comment
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Hello Guys,
its really always a pleasure to read the comments and Christian told me to forward you his greetings!!
@ Derrick Davis: No, there is no video available yet. We already startet a turbine but we want to take a few more shots and videos to edit a nice video.
@ Espresso & dont slow down: Its really difficult to tell and also Christian doesn't know either. I just can say that 2 years ago the same boat (MHZ Mystic C5000) with basically the same setup (2x SPM5 Marine Turbine), well built and a nice paint job was sold for 18.000€ which is around 24.000$. Most expensive parts are probably the turbines, each one is around 5300$.
And here some further progess on the build as Christian still has to do some minor jobs.
stuffing tube support
Right before the turbines there needs to be a support for the stuffing tube as well as a bearing to support the flex shaft. Normally not a big task but it wouldn't be Christian if it was normal. So he came up with quite an extraordinary creation. The main part is made of T6 7075 Aluminium turned to the right shape and then milled on his little Proxxon machine. It has a collet for the special stuffing tube on one side and a bearing sit for a ball bearing on the other side. From the top side he made three bores, two to mount it with hex socket screws to the bearing support on the turbines and a third one to oil/lube the flex shaft between the bearing and the stuffing tube on the other side.
As for sure he also polished them to a mirror like finish.
Here a few photos from the design process to the result:
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But from beginnig he planned to make some kind of cover plates for these, thats why in the picture of the design sketch you can also see the skull.
The biggest task was to cut these skulls out of 0.3mm thin texalium sheet. The main outline was no problem as well as the eyes, he filed them right. A big problem were the individual teeth. He first tried with a superthinn diamond cutting wheel but it failed and he had to start again. The solution was to make a first cut with a scissor and then insert some 800 grit sand paper and file it till the gap had the right width. Now these got absolutely perfect.
Then he made a kind of "background" out of glossy 0.3mm CF sheet, quite an easy task for him.
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For easy access he installed some supersmall hinges which needed M1.2 screws and therefore also M1.2 threads. These screw taps already almost break when you just look at them.
On the aluminium part he installed also some self-adhesive velvet for better optic:
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Here the result outside the boat:
And finally mounted inside the boat:
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prop shafts + DogDrives
Next task were the DogDrives and the prop shafts. I sent him some CAD drawings from both parts, he made the propshafts 1:1 the same, for the prop shafts he preferred to make them with a conus. More effort to make but it looks better.
For the propshaft he used some hardened and grinded 8mm shafts. They are very hard to machine with a surface hardness of 60HRC and Rp0.2 above 600N/m². The DogDrives are made from absolutely stainless V4A material.
Not much more to explain for these parts:
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