Need help with the settings. For some reason the image starts out well, but then lightens up. I created a great engraving on a smaller scale using the same material. It’s a polyurethane binder.
polyurethane binder.
polyurethane binder.
Hi Rebeca
Do you think the Focus could have changed during the engrave on the red binder.
Do you use an air assist? The nozzle might get blocked during the process.
Thanks for the reply. I did have it on. I’m so confused. But I will say that when the job was complete there was a lot of gunk on the laser head. I had to clean it so I know that does have something to do with it.
Yes could be. How could I make sure that doesn’t happen? I wanted to pause it midway to clean the head but read you shouldn’t do that. Thanks for replying!
Pausing to clean will almost certainly mean you wont find the pause point again, without going to a lot of work.
Try to keep the material as consistently flat as possible…not easy with flexi material and heat.
Wild guess! but could you Iron it on low heat with a hard flat board inside the binder.
Maybe a teatowl or some thin cotton on top of the binder…means the Iron could be a little hotter.
Nice work.
I don’t know. I really wanted to use my laser engraver, I bought it to customize my binders. 
I also filled it with a hard book inside so it’s leveled, not flimsy. 
Never tried this…but I’ve heard a piece of glass will allow the beam to go straight through to the surface you want to laser.
Or clear perspex…acrylic.
Thanks! I’ll look into this. Worth a try!
Have a chat with your local glass company for best fit, quality, weight, once you’ve done some research and remember your focus is still the surface of the binder…so the glass must just less than your focus mesurement.
Here is an idea of what to do and I’ve done before:
Other thing I have done:
From the moment I know I have to stop a job halfway through, I divide the job into two or as many as I need.
Using “absolute coords” and without ever moving the material, I finished one part, cleaned the module and started the second part of the work.
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