Hello

Due to his disabillities, my son has a lot of problems with his graphomotorics. As a consequence, having to write two numbers when he started elementary school was already so difficult for him that he wasn't able to also solve the math problems.

However, since he got these stamps he could focus on the actual math problem rather than writing and was able to follow everything like everyone else, and we can practice the writing part separately. So I hope this helps people who have similar problems (or just need some stamps).

Since I could not find any stamps that weren't either way too big to use in his books or too small for our son, I decided to make them myself. Characters are ~6.5mm in height. I made all numbers, letters and many symbols. If I forgot one or there is a need for more, fell free to let me know and I will add them.

I also made a box that can hold these stamps without them falling out when transporting them. When opened, the cover holds it at a convenient angle to double as a proper stand when using the stamps. The cover is a snap fit, so yout don't require any other parts like screws.

I made various sizes of the box, so you can choose the one(s) that work best for you. The Boxes up to size 2x15 can be printed on a standard print bed. For the bigger ones you will need a 300mm print bed.

I used petg for the boxes. I would not recommend pla, just in case it's left in the hot sun or close to some other heat source, as pla is very heat sensitive and may deform easily.

As for the stamps themselves, I used a resin printer to get a very precise print. However, a properly calibrated printer should be able to do this as well. I recommend a small nozzle (0.4mm or smaller). You can also try setting the wallthickness below the nozzle size. I can print 0.4mm lines with a 0.6mm nozzle if I'm carefull. But you should test this on you machine first.