Scarab-style "scratch" build

[TiTu]

Don't know if this is qualified as a real scratch build, but rather than doing this old style, I took advantage of using cad knowledge I have.
I used images of Wellcraft Scarab 38 KV as starting point and took some reference from SV43 to get the model for my liking.

Front.jpg Front_wire.jpg Side.jpg Side_wire.jpg Persp.jpg

As I'll 3d print the hull, I didn't need to make the geometry super clean, all that mattered is that the surface is as smooth as possible. Although filling and sanding will be required in order to get the layers hidden for the smooth result.

Length will be around 30" and I'll be using TFL P1 outdrive.

Next step is printing the hull and modeling the hatch/cockpit area as well as battery, esc and servo mounts.

[Panther6834]

Cool. I always liked the Scarabs.


~ More peace, love, laughter, & kindness would make the world a MUCH better place

[Peter A]

I have a Dumas 30" version of that scarab. I was originally going to fit a P1 drive but ended up going with a standard stinger setup. The transom has a 15* slope on it.

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[Peter A]

How it was originally.

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[Peter A]

Set up now.

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Runs a TP 3630 1500 kv on 4s with a turnigy 120A (Basically the same as the OSE Raider 150 except lower amp) esc. On an X442 it has over scale speed but is an awesome wave jumper, really hard to flip.

[TiTu]

Printed hull parts

Got the hull parts printed. I used petg instead of pla for better strength. Reason for dividing the hull to so many segments was to reduce the need of supports and shorten the print times if something went wrong with the prints. Only real issue with printing was the warping on the first layers as the print progressed. Dialing in the print settings and temperatures helped to reduce the effect and I needed to reprint only one segment.

Parts_01.jpg Parts_02.jpg Stacked_01.jpg Stacked_02.jpg

Next I need to do some research what adhesive I'll use to glue the hull together. In addition I think I'll do inlay with fiberglass cloth for added strength.