Antislip for Winter

thingiverse

*Use at least 20 percent fill rate. *Use supper greater than 60 degrees. *Use thick shell thickness for screws. *Hollows for screws are 3.5 mm. Use correct screws for it. *I used 37 mm self-drilling screws. You can use self-tapping screws but this time you have to use greater shell thickness. *Middle part between two claws have to be metal but you can use PLA also. The piece is solid enough.