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27-11-2012 #1
You are probably right. I will need to build my own if I want to get the combo of speed/cost I want.
Well, I want it to pick and place electronic parts. Similar to this: DIY SMT IMPROVISED PICK AND PLACE MACHINE (TEST) - EMC LINUX - YouTube
I am hoping to make mine faster though.
True.
Well I say gerbers because as my day job is a PCB designer I am used to the format - the parts I would need to have machined would all essentially be 2-dimensional (excluding the thickness of the material). i.e. an outline and holes, much like a PCB. I would be using Altium Designer if I used gerbers. I think it has a DXF export option, actually. I will have to look tomorrow.
Shapeoko I looked at, but it seems to simpe in construction, so simple I may as well try myself to build one.
Do you know any good laser cutting or machining shops that I could use to make custom parts I may need?
So, a few thoughts...
1. Should I make it belt driven, for speed, and low cost? Problem with accuracy though? I don't know...
2. Unsupported rails all round, no large forces to deal with and lower cost than supported rails.
3. Cam driven or belt driven Z-axis? Can't decide...
4. Maybe use extruded aluminium as a frame, not sure on fixings for rails etc though...
5. What motors to use? Belt direct drive so would need to be fairly high torque, simply for overcoming inertia on startup and reverse...
Thanks guys
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