Originally Posted by Crevice Reamer  There is no maximum limit for IPM. High IPM is a measure of the drive/motor efficiency. Good efficiency equals lower chance of missed steps. It is NOT just about cutting speed--Cutting speed will be influenced by material and force/spindle-speed required. Inefficient systems may not be able to provide sufficient force to cut at optimum rates without stalling and missing steps.
FIRST: Understand that YOU can always set the upper limit of your IPM by software control. You can easily slow down an efficient CNC. It is very difficult and often very expensive to SPEED UP an inefficient CNC.
High IPM really saves time when your spindle has to move from one place to another without cutting. Time saved always translates into money saved during production.
If you have lots of time to waste, have no intentions of ever doing any kind of production, will NEVER want anything like an automatic tool changer (or multiple fixtures) and/or are not dealing with a large area to cover like on a router--Then by all means limit your upper rapid speed. But do it in software--NOT by crippling your machine with inefficient components.
CR. |
Nice quotes from mariss CR, what do you use all of your machines speed for, ANYTHING? Anything at all? Examples please.