SPEED/POWER RATIO

[Rick]

I am wondering if there is a straight line formula that states when cutting any substrate at say 22 speed and 27/27 power than if the speed is increased by x, then the power needs to be increased by y?
ie if I increase the speed by a factor of 2 then I must always increase the power by y for the same result?

Also, when cutting 3mm Perspex on my 3020 I get occasional flares in the cut which isn't a problem until I start using liquid weld to join the pieces and then the weld will run down these flares and mark the surrounding surfaces. Any ideas anyone please?

Cheers, Richard

[Daven]

Not that I know of

The formula would have to account for too many variables AFAIK so would not be very accurate. Each type of material will have it's own variations such as thickness, density, knots or inclusions (in ply) so it would be more a rule of thumb which you could probably find out quicker than trying to sort a formula out

The flares are possibly reflections off the bed - try and raise the material a bit more off the bed.

Best
Dave

[Rick]

Thank you for that. I hadn't thought of raising the Perspex off the bed - I will try placing some spacers at each end of the workpiece and try that.
Best regards, Richard