The rubber will indeed absorb part of the kinetic energy from the hammer, which means there's less energy remaining to stamp a letter into the washer. The harder the surface under the washer, the better you can stamp.
Will the rubber from a tractor wheel be hard enough? I meant rubber of this type (firmness and elasticity), not soft. There is no need to cut a piece of rubber from the wheel of a tractor working at a nearby construction site
, because can look for material with similar parameters in a hardware store (or in grandma’s pantry \ grandfather's workshop).
Wood is not bad, I am currently using a 4mm-thick small metal plate that I had. I place the BitJig on top of that, and then I place everything on the floor, or a plastic board (I could use the floor directly, but just to make sure that the nut does not make small marks on the floor).
Try placing a piece of rubber (with a balance of elasticity and hardness) between the wood and the floor and your floor will not be damaged.
Wow, you also have capsules (but you are silent about it
).
I just wanted to say that it’s high time you offered BitJig for sale, but it turns out that your website already has a “
shop” tab.
And even prudently, it is possible to pay in bitcoin. Great.
This is an affordable alternative for those who don't have a 3D printer (who would buy 3D printer for the sake of printing only 1 Jig?).