Ouch. I will have to look out for that.
So, I started to roll up my sandpaper and thought, "it
is moving freely along the middle of the travel, why would it bind up at the ends?" Is it the mounting holes on the sides that should perhaps be opened up a bit more, rather than the bushings?
I would really like to replace the side MDF pieces with some nice solid aluminum pieces anyway. Are there plans anywhere for cutting our own replacement parts, after it is working?
Actually, I would replace
all the MDF pieces with aluminum...
Putting this together reminding me far too much of IKEA furniture.
Also a suggestion: Include an extra sticker or two in the package. When I shellacked my pieces, the stickers had to be removed or painted over (well, I could have masked them off...)
Also, maybe sending out the file with your logo as a test run in the software. Then, nearly everyone setting up this machine would be creating one of the logos to hang up, let the kids play with, whatever...
Plus, free advertising, right?