Need help! My machine (OpenBuilds OX CNC, NEMA 23, belt driven), while doing it’s job, started to go out of it’s line. I was cutting a letters of a MDF (9mm) and everything was going well, when all of sudden I saw a mess. What is the problem? Are belts too loose or too tight? Should I replace old belts with new ones? I cleaned every piece of dust beneath belts. Should I lower my feed speed (I’m using OpenBuilds control)? There has to be an explanation. Thank you in advance.
Probably a combination of all the above. Dig in and inspect: - pulley setscrews still tight? - belt still in good condition - belt tight (12kg of pull force) - belt clamping screws tight so belt stays tight - how aggressive was your cut recipe?
Speeds, feeds, depth of cut, stepover if pocketing, choice of endmill and many more: all the ingredients chosen for the toolpath
Oh that Well I’m using rules of thumb. And I’m using AmanaTools router bits so they have on their page speeds and feeds for each tool.
No I mean tbeir specified feeds and speeds. So having a belt driven machine, are you scaling down accordingly, as surely their specs are for proper machines. That said though do the mechanical checks first
My bad I don’t know how to scale dow accordingly my machine. Is there a way for each machine, or by type of machine, or by type of a motors running the operation?
Play with the router by hand. If you hold the tool in your hand it will help you develop some feel for how hard and how fast you can cut by hand, which will greatly help figuring out feeds and speeds. Woodworkers moving into CNC has that prior experience to lean on
