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guaro3d

Piper Cub frame model (esc: 1/64) (No 3D print, CNC routing)

by guaro3d Apr 26, 2017
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Hello! I do have a CNC router but this is so delicate in its present scale that I would have to do some careful preparation work.

I would have to study the model to break it down in sub-assemblies, and then program the actual cutting operations to use fine tools - 1mm diameter cutters or smaller - with especial care regarding vibration damping. It would be best to machine the parts attached to thicker sprues to take up stresses, and then cut the parts out. The router itself would have to be calibrated again before this job.

It definitely is not impossible, but it certainly is an interesting technical challenge requiring an experienced operator and preferably with experience with old style balsa models :-)

For the sake of mental health I'd think of doing each half wing in one piece, no separate ribs to be glued to spars, etc. Take a flat block of 4 or 5mm thick material, pin it down and run the router from top to bottom digging the material out. The only problem would be those pretty lightening holes that would be left out, but I'd like to preserve my sanity :-))

You are right, its a challenge, my router is very very small, a zen toolworks 7x7, but you could also scale up the model. Any way, at your service if you need anything 3D modelling or visualization related. Greetings, I have another model like this one of another airplane, if I find it i will publish it later.

The files are in mm, greetings

I meant 0.4mm sheet, and using a 1/64 in end mill. Greetings

Thanks I'm going to see if I can model the plans and see if I can 3d print each piece
(Since I don't have a CNC mill)

I think is totally duable, just make sure you have a extremely flat bed and not too much adhesion, since the pieces are small will be hard to remove them from the bed if it is too sticky. Greetings

What a terrific piece of work !!!