Precision universal fabricator CNC

[ZeroBacklash]

Hi all,

We are a non-profit organization based in Mumbai (India) and we're looking for a low-cost "universal" CNC machine.

Our requirements

- It should have 3-4 axis
- It should be cheap ($500-$1500)
- It should be small, so cheaper (5"-30" working area)
- It should be able to mill plastic, metal, PCBs
- It should be precise (1-50 micron accuracy)
- If the tool is changeable then we could modify it for soldering/additive printing/pick and place, etc.

We have experience with software, mechanical and embedded development so we are fine if we need to get our hands dirty to modify the machine.

Possible machines

- We had finalized on the Lumenlab Micro V3 CNC, but it appears that they have shut shop.
- The Probotix Fireball V90 looks good (accuracy and price), but no idea if the tool is changeable
- The Datron Inline looks like a small machine (accuracy & price unknown)
- The Mikebeck Complete Kit is really cheap (accuracy unknown)
- The Sable 2015 is cheap (accuracy/reliability unknown)
- The 3020 is affordable, but the accuracy is very low (0.05 mm)
- The 2518 is affordable, but the accuracy looks barely enough (<0.04 mm)
- The Cmode 3629 is somewhat suitable (accuracy is 12 micron)

If you have any idea of a CNC that could work for us then please let us know. If you have experience with the above machines, then your comments are also valued.

Thank you.