20x40mm Drop in Nut
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When building with 20x40 V-Slot Linear Rail, and the project is completed, there is no way to add parts because the…
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When building with 20x40 V-Slot Linear Rail, and the project is completed, there is no way to add parts because the end of the rail is closed, and a new nut cannot be inserted.
With the drop in nut any place on the rail can be accessed. The nut fits the slot but when turned it locks in position.
At first, I had my doubts about making this. It is so small, and it may be too weak. I was wrong on both counts. With my Prusa MK2.5, I was able to print a PLA part that was very exact and strong.
I make two versions. One uses an M4 bolt that self-treads into the nut. The other has an insert area for an M3 nut. Both seem equally strong and certainly strong enough for nonstructural applications.
This will only work with PLA, PETG does not print well. Also, you need to use '0.15 Optimal' setting on the 'PRINT SETTINGS' of Slic3r, perimeters is set to 7 and infill to 100%.
Print Settings
Printer Brand: Prusa
Printer: i3 MK2S
Rafts: No
Supports: No
Resolution: 0.2
Infill: 100%
Notes: set the perimeters to 7, takes about 8 minutes to print.
Category: Parts