Metric screws, nuts and bolts jig
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PLA from £6 inc. UK delivery on letter-sized prints. We slice, print on a calibrated Creality K2 / Bambu A1, QC and post.
This was inspired by a few things seen here. I wanted one that was relatively compact but still able to measure enough different objects to be a must-have in my pocket or tool box.
Features
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It can measure :
- screws lengths (head included, from left to right)
- bolts lengths (head excluded, from right to left)
- screws and bolts diameters
- nuts diameters
- drill bits
Cool thing (although not really usefull at all) is that you can measure at the same time a nut and its bolt diameters if they are already assembled.
It's metric only. There is a hole in the corner for a keychain or to hang it on the wall.
The quantity of filament is quite small (17 g) as the height of the thing is only 6 mm (which is totally enough).
Adjustment
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On a MK3s, the printing **do not need holes adjustment** setting. Holes have already been extended by an extra 0.25mm radius and the result is good as you won't be able to confuse one diameter with another. For screws, they enter holes without any friction while bolts will adjust with a little bit of friction (for some reason, their effective diameter is bigger than screws'). Extending radius is always possible but would make screws possibly confusing and requiring a visual check between two sizes, which is not the goal if you want fast sorting.
Speed
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Given the precise holes on first layer, check that your **Z is well calibrated**. You don't want the holes to have a random shape. Also I do not…
