Ok, thanks. Hopefully that will give a better description of the head, and what the numbers represent - higher number = lower focus, 1 tick = 1mm etc. because my manual is 15 years old and was translated from some European language
To set the focus position I put a small cardboard shipping tag on the table, turned the focus all the way up till it topped out then brought it to 0. Then I brought my head down and took a pulse shots increasing the focus number (lowering the focus) by 15 every time.
The pulse size decreased...
The blobs are inconsistent. Sometimes a hole has it sometimes not without a change in parameters.
Check out the updated pictures from the link in my first post
lead in - rad .1875, length .200
focus is at 6mm
I have played with the acceleration / braking factor - not much has changed,
I tried a straight lead in and the blobs are much smaller but still present.
I am cutting 11gauge ss on a bytronic bystar 4020, 2800watt.
I'm having some difficulty with holes and tight slots, I end up with small hard blobs of steel at the pierce / leadout points
I have an arc leadin and leadout with plenty of length.
I also end up with the blobs in corners (with rad...
I ordered some oxygen and low pressure nozzles. They will be here this afternoon, so I wont be mucking about with nitrogen. I have some base parameters to run oxygen so I'll let you know if I have any success.
I am fairly new to lasers. I've been cutting for about two months on a bystronic bystar 4020, mostly Stainless 20gauge - 11gauge, Now I've got some parts to cut out of 1/4" hot rolled.
Because I cut mainly stainless I am running nitrogen.
I've got a 7.5 Head on the unit and I've figured out how...
