Keith;
On the Speedy 400 (and the Universal X660 I had before that) I spent a good day or more getting the focus as close to perfect as I could (and resetting the focus tool) and reseting the alignment from "factory / install" good enough to as close to perfect as I can manage. Proper adjustment of the air assist is important in cutting things this fine. Not enough air and the part overheats, melts, re-welds or warps and is destroyed. Too much air and the cut looks rippled as the molten acrylic is being pushed out of smooth and frozen. And of course the power, speed, and PPI settings need to be properly adjusted to limit the amount of heat in the piece and to ensure a clean cut. Basically everything.
And it only took me 10 years to get here - with a bit of help from SMC and other sources.
Last edited by Guy Hilliard; 04-20-2015 at 10:39 PM.
Guy Hilliard
Sawdust and Noise
Trotec Speedy 400 w 80W, rotary attachment, vacuum table, cutting table, lamella bars
AXYZ 4008 w 7 position ATC, Servos, Vacuum, pins, laser digitizer
CorelDRAW X6,
Rhino 5,
Aspire