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|02-02-2017, 09:06 AM||#1|
Join Date: Feb 2017
Posts: 2Rep Power: 0
CNC Laser 2017
I do want to retrofit my CNC with a laser for cutting and engraving (In this order of importance).
Somewhere in the forum I read this line by DTR regarding the best laser for engraving application:
"If you want finer engraving you can get more detail as you go down in power. NDB7A75, NDB7875, PLTB450B and then BDR-209."
Does this, the other way round also apply for cutting power? So, NDB7A75 is best, NDB7875 is second and so on..
I saw that NDB7A75 is out of stock at DTRīs and has gone VEEERY expensive on other sites.. whyīs that? No more in production?
NUBM44 sounds tempting because of the high power, but since it produces more of a line than a spot where the power is distributed on, It might well be that a laser with less power but more concentrated on the spot is better for cutting. Someone said cutting with the NUBM44 is more like writing with a calligraphy pen.. fine in one direction, broad in the other.. I wonder if rotating the laser into the cutting axis would make it a good laser for this application... but thatīs another story (of reading gcode and applying some math and then driving a 4th rotational axis accordingly)
So, what to buy if I want clean cuts that do need as little passes as possible? I Donīt want to do production cutting so speed doesnīt matter for me. If my wooden board for a prototype takes 5 hours instead of 5 minutes thatīs almost also fine for me...
What to get right now in the beginning of 2017?
Last edited by PhiMX; 02-02-2017 at 10:23 AM.
|02-04-2017, 12:48 AM||#2|
Join Date: Jan 2017
Posts: 11Rep Power: 0
Re: CNC Laser 2017
THis is pretty much the same post I was going to write.