20mm Bench dog
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Printable bench dog replacement for my foldable workbench -Bosch PWB 600- or any other workbench with 20mm holes.
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Bench Dog for 20mm holes
You need:
- e.g PETG Filament
- one countersunk head screw M8x1.25 35mm length , head diameter 16-17mm
- 2 part epoxy glue
- a 3d Printer ;-)
Works fine for all 20mm holes to hold wood panels or other things in place while you are working on your workbench. I first printed it in 100% PETG no infill.
My first model cracked when applying a reasonable amount of pressure.
So I asked myself how to reinforce the Structure an preventing the bench dog from breaking appart. M
Most likely everybody has some screws in their workshop. So I designed a central screw tom enforce the cylinder. You will need countersunk head screw, M8 and 35mm length (see picture).
Preferably use a thread tap M8x1.25. In spite of the fact that there is a preprinted thread in the model, it will be easier to get the screw in if you use the corresponding metric thread cutting tap.
I used an 2 part epoxy glue and I think this is a good possibility to add even more strength to the part.
Until now the combination with an M8 screw seems stable enough I couldn't break the bench dog appart using it in the Workbench. If you want change the Design and use a cylinder head screw.
happy printing…