Is there some actual profession procedure to beam alignment? They have been sticking a piece of packing tape over the nozzle and burning a hole through it, then looking at it. Apparently that is how the installer showed them how to do it. It's not great, and I don't see any real improvement. In fact, I can change many of the settings a significant amount and see no difference in cut quality. Makes for a frustrating day. I can cut 1/8" mild steel with a reasonable finish most of the time, but it likes to just randomly start oxygen cutting or leaving heavy slag for no observable reason. I have no paperwork or documentation from the MTB (Dade Heavy Industries, do not recommend) so I have no place to look for answers. The MTB has no English resource that I can find, and I don't read Chinese.
Hey Your in Deltona.. I'm in Orange City just up the road... Also running a 500 watt chinese but we are actually getting it going pretty well. We have some of the answers puzzled out I think.. Also Google translate is a great tool for reading the instructions that are missing. I would be happy to try to help you sort some of the issues out.
We had a fair number of the same issues with edge quality, getting it dialed in took a fair amount of guessing but there is a VERY important relationship of gas flow to nozzle standoff, what are you running for gas pressure, nozzle size, standoff, and feed speed?
If you feed too much oxygen you often get runaway burning. Our setup tech had the oxygen at something like 6.5 bar for everything and we had some runaway burning on corners and the like, when the metal got hot enough it would burn it, the answer was to turn down the oxygen to something like 3 bar and go from the 1.5mm nozzle to a 1mm nozzle and to increase the feed speed.. Sometimes the answers ended up being very counter intuitive.
This link looks super funky. It is a PDF file..
http://www.laserdeal.com/techInfoFiles/Facts about Laser Cutting engl[1]. Drucklayout 23.06.03.pdf
Anyway on page 12 of the document it gives a table for oxygen cutting that seems to work ok, it at least gives you a starting point.
One thing is the laser wattage is showing a co2 which throws off the numbers a bit since you don't have transmission loss with a fiber like you do with a co2.
My brother has a theory on the nozzle size to pressure, your trying to have a certain amount of pressure at the cut, to high and you get a bad cut too low and again you get a bad cut. I'll try to get him to write it out so I can post it..
I'm actually trying to put together a video series to help people getting these machines to get them setup.. Most of the information from the big 2-4KW units does not directly apply, much like using a haas VMC feed and speed chart does not directly apply to a Tomach.
Edit: I was having trouble finding dade heavy industry, but looks like these guys.
Jiangsu Dade Heavy Industry Co., Ltd. - laser cutting machine, plasma cutting machine
I did find a manual for the Capacitance controller which is what controls the nozzle offset to get that search bcl3764_v2.0 on google and look for downloads.fscut.com and it is sadly a pdf of nothing but chinese, I was not able to translate the whole document But using google translate for sections was helpful.