3D printer & CNC design

General discussion of 3D printers

3D printer & CNC design

Postby Shawnturner » Fri Nov 17, 2017 7:56 am

Hello,

I'm new at "DIY 3D printer" stuff and I would like to ask you a question about what design it should have. I want to build a 3D printer/CNC combo machine but that damn design is a problem here. First I taught that I should make something like a regular 3D printer ( the printing head moving on 2 axis and the bed on third) but an issue appeared..... is it ok to bring 1kg of wood or aluminium that high? (I want to build something quite big). The problem with this design is the fact that it double the space required with at lest the printing height and I don't even know if the NEMA 17 motors that I have can handle the weight of the CNC drill.

Can anyone give me some ideas ? But please, don't say something like build 2 different machines because this is not an option

For more details: app trailers
Shawnturner
 
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Re: 3D printer & CNC design

Postby Techgraphix » Sat Nov 18, 2017 10:14 pm

What about moving the head with a corexy configuration? This can easily be done by two Nema23 2-3nM motors, which should be sufficient to move a small spindlemotor.
Most 3D-controllers can handle Core-xy.
Advantage of this CORE-XY is that the dirving motors are all static, (only the feeder for the filament is moving, if you use direct feed)
Lifting the table can also be done with one Nema23 motor, driving one or two Linear spindles.
Mine is able to lift about 60kilograms without problems. For 3D-printing a bit (a lot) overdone, but for milling almost the minimum.
What do you want to use to controll both 3D-printing and milling? something like Mach3?

Kees
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