This machine gets a lot of work from me and thank fully had very few issues with it. These work great if you look after them. My particular laser is a Ten High 40w nodel.
https://www.ten-high.com/
I use this for all sorts of little projects and it pairs very nicely with an excellent 2D design application Solid Edge which is free from Siemens.
https://solidedge.siemens.com/en/free-software/overview/
Mostly I use MDF board as my medium of choice. If is readily available, strong enough for my purposes and cheap. The local DIY shop sells a 6 x 3 sheet for about $5 and cuts it so size for my laser.
The problem with it is that where the laser vaporises it, it leaves all sorts of residue.
Also many little cutouts also fall into the machine. Maybe I am over cautious, but where a laser is running hot enough to vaporise material, I think it good to clean flamible material out every now and again.
The residue it leaves on surfaces is another issue. It is sticky and coats everything. This can lead to uneven movement on the guide rails, and also a loss in cutting power due to dirty mirrors.
Some elbow cleaning solution and some elbow grease, and before long we are back to full power and happily cutting the next job.
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