Can I offer some engineering critique, the letters should be proud (raised) versus recessed as the sand will stick in the cavities and not allow the letter to form or pull the letters away(separate from surface) . I like the idea though, leaving a message as to where you have been. Also the letters should a 1/3 to a 1/2 proud as they are wide as so to have enough base so that they are self supporting. Hope this helps. and again great idea. This would be an awesome addition on some work boots.
Solidworks guy here. One more thing to help make this more successful, add draft to the letters wider at the base/sole surface 1.5° degrees should be minimum, but ultimately 4° should be about right. Post pics after the test.
Can I offer some engineering critique, the letters should be proud (raised) versus recessed as the sand will stick in the cavities and not allow the letter to form or pull the letters away(separate from surface) . I like the idea though, leaving a message as to where you have been. Also the letters should a 1/3 to a 1/2 proud as they are wide as so to have enough base so that they are self supporting. Hope this helps. and again great idea. This would be an awesome addition on some work boots.
Solidworks guy here. One more thing to help make this more successful, add draft to the letters wider at the base/sole surface 1.5° degrees should be minimum, but ultimately 4° should be about right. Post pics after the test.