Hello!
I have been having problems with producing acrylic engravings lately. My problem has been getting worse in the last while. My machine is a Rabbit QX-1290 with a 100W tube. When I first got it, I only needed 13% power to engrave on Rowmark plastics. However, at this point I need about 18% of my power in order to produce something that is good enough. Good enough is not the quality that I like though. Everything else I engrave seems to work at the same amount of power that I began with. So only my acrylic engraving seems to be suffering from this.
The first thing I tried was to re-align the machine. I got it to within perfect alignment as far as I know. This is what I got at the table. The one at the end of my thumb is my final alignment test.
IMG_20181222_143527.jpg
These are some of the samples that I engraved so you know what it looks like at regular power.
IMG_20181222_150950.jpgIMG_20181222_151326.jpg
If anyone has any ideas as to why this is happening, I would appreciate some wisdom in getting this fixed!