公差螺丝夹具

Metric screws, nuts and bolts jig

2023-03-26 20:22:49

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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

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

On a MK3s, the printing do not need holes adjustment. 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

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 hesitate to do it at 10mm/s on 1st layer (or at least for the time it's drawing the circles). For other layers, if you have time, the slower, the better for the precise printing of letters/digits and radiuses.

Layer height

Unless you configure different heights or use adaptative height (recommanded with Prusa Slicer !) do not go more than 0.2mm to not mess with expected shapes.

Professional Tips

For better adhesion, it's recommended to clean the build plate before each print and ensure it is properly leveled. Additionally, using a dry erase marker or paper towels can help remove any oils or contaminants from the surface.

Material Compatibility

Ensure that the material you are printing with is compatible with your printer's build plate. Some materials may require specific types of adhesion sheets or rafts to ensure successful prints.

Post-Processing

After printing, carefully remove the printed part from the build plate using a spatula or razor blade, ensuring not to damage the surface. For delicate items, consider using cooling fans or increasing airflow during the print to help with adhesion.

Troubleshooting

If you encounter issues like layers sticking to the build plate, check for contamination on the surface and ensure proper first-layer adhesion settings are enabled in your slicing software. Additionally, consider adjusting the Z-offset setting to improve adhesion without damaging the print.

n公差螺丝夹具

朋友，你觉得上面这个模型，属于下面的哪个分类？