Hello,
I've recently bought a low-cost 3018 CNC (here is the ebay link: https://www.ebay.fr/itm/124282612756).
The set-up has worked surprisingly well: with no prior CNC experience (but a lot of
embedded programming engineering experience) I was rapidly able to set it up
to carve my first projects.
To start, I wanted to be able to carve circles and disks.
And the result is not satisfactory. On a small circle of 16mm in diameter,
I get diameter measures (in the carved result) from 15mm to 17.5mm.
I understand this is due to the famous "backlash" phenomenon but I don't know:
- how to reduce it (by using different SW or improved nuts?)
- how I can work around it (what projects are less sensitive to it? Maybe photo carving?)
This is where I need your advise.
My software controller is based on GRBL, so I assume there is no backlash control setting
(maybe I am wrong). I am willing to invest a bit in new nuts, and maybe change the SW.
Best regards, and a happy new year,
Dopo