Miscellaneous > Fabrication

Duplicator

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SparWeb:
This past week, I've made a lot of progress on this machine.
I replaced the hubs - not quite as shown above because I found a much simpler way: keyed shaft stock.
I also made a set of rails for it to roll on, which will eventually become a complete table.
I bought some proper cutters, but not left-hand turning cutters.
I still plan to use the cable system, but currently not using it, and I have decent results without it, actually.

Today I turned out a reasonable copy of an arbitrary 2D shape.  Later I will try it on some 3D shapes but I need to set up proper fixtures for doing that.

SparWeb:
Exactly 1 year later, an update:

https://www.youtube.com/watch?v=jwORuhzXiTY

I can successfully duplicate wind turbine blades with this machine.
Below, a photo of a finished product.  As stated in the blurb under my video, this is just a dry run of the machine to show that it works now. 

MattM:
Pretty time consuming by hand.  I wouldn't be surprised if it could be automated for a reasonable cost.  So many tooling options out there these days.

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