Speed calibrations

[ZzingG (P H)]

Hello all,

For those that have done speed calibrations on your lowrider, what pattern did you use for it? I am going to be doing a lot of cutting on the same material so wanting to fine tune my speed a little bit and see if I can get the machine to run faster. Is there a pattern that would be best used for this kind of thing? To me it makes sense to use some sort of smaller pattern that is close to what I am going to be doing, but figured I would check. Is a straight cut up and down each axis(x, y) ok? Or do I need to also include some sort of diagonal cut so that more than one axis is being used as well?

Thanks,

Philip

[Tokoloshe (Philipp)]

There is no real test. Just crank it up and see whether the results are what you’d like. I usually start too fast and work my way down.

[jeffeb3]

There was a CNC Race test file used for some drag racing:

Cnc race!

Ladies and Gentleman, get ready to break stuff!! Let’s see who can make a decent* cut the fastest. Rules: 1 - Use this DXF, import in millimeters.100mm_drag_racer.zip (8.3 KB) 2 - 12mm Depth of cut. 3 - Only in MDF (MDF should be fairly universal, making the test as even as possible). 4 - Take a video (we might need proof, you don’t have to post it unless it is really fast or something breaks!) 5 - As many attempts as you need, post them all, lets see how you improve! Any tool, spindle, …

@ZzingG

Is a straight cut up and down each axis(x, y) ok? Or do I need to also include some sort of diagonal cut so that more than one axis is being used as well?

I think it depends on what you want to test. If you have a specific component of a cut you want to test, like the fastest slot cut, then that’s probably fine. But a real cut would have degradation in precision and you’d care about a finishing pass as well (if you wanted the precision back).

But in the end. A test is only as good as the interpretation of the results. They all have merit.