I must be doing something wrong? Having had the laser less than 24 hours, this is probably the case. I was able to successfully cut paper using an svg from http://monicascreativeroom.se/category/cutting-files/cupcake-wrappers. That file, however appears jagged, I was expecting something more smooth.
I was able to successfully cut through cardboard, but it took about 7 passes. I was expecting to be able to easily cut through cardboard. Granted, I haven’t yet installed an air assist, but I assumed slightly better.
I was engraving and atempting to cut some old MDF laminate flooring. Learning how to recenter the laser each pass. I was expecting to be able to cut through this as well. How many passes is “normal” to cut through various materials. I’ve read three, so maybe a setting is wrong?
Yes indeed. A well aligned and set up K40 is quite capable. Much more capable than the majority of these you see on the web. But, you have to put in the effort to do it, rather than plowing in for instant gratification. It doesnt take that long really.
BTW, Mine will do 1/8 ply, at 12mm/s at 5mA tube current in a single pass, with air assist, after setting up properly. I also changed the current meter for a nice digital uA meter, so the current readings are far more accurate than the stock analog meter, which was way off to begin with.
Will do. I ordered an air assist head from LO. I might just keep playing with the software, trying to determine how it works. I sure wish I could use my mac, the PC isn’t as stable.
Once I learn how to use the laser in its current configuration, I might upgrade the board so I can use the mac.
That is a plus with this unit, that there are lots of inexpensive upgrades available, don’t forget to upgrade the mirrors too - they make a significant difference.
Also, keep in mind, when cutting thicker materials, focusing at the top of the material isnt always ideal. Focusing into the material a degree, may give better cut results
Your stock mirrors may be fine, They vary quite a bit. Mine came with nice mirrors. Some do not. You will have to post a pic of them for us to tell you which ones you have.
Yuusuf is correct. Convex side up, flat side down. It really doesnt matter all that much, but the beam quality will be slightly better with the flat side toward the material.
I personally found that 20 passes through 3mm thick leather was ridiculous & then switching the lens orientation I was able to reduce that to about 2 maximum with the same power settings I had been using (7mA).
I’m glad this group is here.