I use these for a variety of “cuts” on many different materials – on wood they “gum up” a bit (requires a steady hand). I’m thinking you’ll use these from the backside to cut free what the Forge couldn’t…
To me this looks like it may b solvable with more experimentation. Maybe 2 passes is the trick for this material.
They do make a mini router attachment for a Dremel … but any kind of hand tool is going to be hard to make super clean cuts with. I would only consider that when I was 100% convinced the laser was a dead end.
Not sure, but from the picture it looks like a glue pocket or void. I’m not sure a second pass would work on a void. I usually use a utility knife or exacto to punch those out, but I think the sander is a good idea…I’m just took lazy to go to the garage for something small like this.
I also use a thin blade; if I can’t just cut it free then I score the uncut side as deeply as I can manage and then punch the piece out (gambling that my scoring was good enough to avoid excessive tearout).
That really looks like a material issue. What is it you are cutting?
A mechanical tool like a dremel is not going to give a clean, uniform cut for the kind of work I believe you are doing.
Edited to add - I have all kinds of wheels for a dremel, including those posted above, and many more besides. I have wafer-thin steel saw blades. I would never attempt to correct that with any of them. It’s just not the right tool for the job. Figuring out the material issue is.
Don’t know if it’s the same but lauan underlayment is possibly the worst material I ever used on the GF. It was cheap as dirt for a reason. It’s built to provide a cheap level surface for tile and such.
I burned thru one 8x4 sheet I picked up and cut up, but never again.