Inspiring videos as always thank you :). Please what you suggest for nice engraving result. I have 12000 rpm, 1/4 90 degree VBit. 4 mm acrylic sheet. What is the best feed rate. Plunge rate and depth per pass. Thanks in advance :)
First make sure it's cast acrylic. Extruded can gum up. The thing with acrylic is you want to evacuate the chips out so they do not melt back into the acrylic or the bit. Also for engraving you do not need to go very deep any where from 0.1mm to max 0.5mm, remember on a 90 degree you will get a thicker line the further you go down. If I remember correctly you have a 3020, I would start at 250mm a minute and then slowly increase the speed. You will be able to tell if you are pushing it to hard with missed steps, machine rattling, and if it sounds like it is struggling. Plunge I normally use half of what my feed is. As for rpm, the higher you run it the more heat you generate, so it's a balancing act to get all three in sync. So I would set up some small test runs, to see what setting work for you.
@@D.E.Hammer That's Amazingly helpful. Thank you. and yeah you a great memory. I was trying to get the drag bit that you suggest for etching acrylic from the link you prided but seems like it's US production and I live in Europe so shipping is really expensive. I will try the feed rate that you suggest. Thank you sooo much :)
