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WRONG FORUM https://www.eng-tips.com/threadminder.cfm?pid=380 NEED CUTTING PARAMETERS

nozzle area x square root of pressure in bars =consumption in cubic meters

from what i see gas pressure is too high nozzle diameter is too big and focus is too high. gas should be 0.05 nozzle diameter should be 2 or 2.5 focus should be top of plate currently you are at 3.5 mm above plate (this is why your kerf is so large. and possibly nozzle alignment needs correction.

post your cut condition and photo of edge so we can see whats happening. looks like low speed and focus too high above plate could also be an o2 pressure problem

definitely sounds like a nozzle alignment issue

you can use stainless steel condition for the same thickness but cut your speed in half. there will be burr on the bottom but it will cut

looks like gas pressure is too high and possibly cutting too slow or edge parameters are not good. what is the actual speed it is cutting, theres no way it gets up to 72/ipm in that short distance. you might need to use a medium contour condition i dont cut any mild steel so i cnat help with the...

usually premelt is E9 around 300 ipm 1500 watts 1000 hz 32 duty with a noozle gap of 3mm

looks like your focus is too deep and your speed is too slow. but a picture of your edge is what i need to see.

if machine starts normally but no beam comes out of the nozzle it is usually a blown mirror or lense not allowing the beam to travel

looks to me like your cut lines are outside table dimensions

there is no reposition with my machine and it is not nt. yes we cut stainless with protective film. in some cases i run a premelt before actually cutting. but most times now with the newer nitto coating premelt is not required. 120 is my max length.

100% agree i cut 0.25 aluminum on my 4000w amada fo3015 c02 laser with same results as corth1024 50 ipm .

Just an update. ok so if i put both tables outside manually i can run programs with trace off. thanks

yeah will do

i need to know if there is a way to cut without a table inside my machine.

i etch all the time with a 4kw laser but i do not use all the power

rule of thumb is min dia = thickness but i break this rule all the time by using pulse cutting.REduce power frequency and speed

CHeck the mirror directly above your head sounds like your issue is there

316 tastes better