Drill Bit Sharpener Holder (Up to 20mm) MR-13A etc
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Description
If you want to increase the capabilities of your drill bit sharpener, this project is for you.
Standard sharpeners such as VEVOR MR-13A, MR-13B, Cormak DG13M, and other similar Chinese-made machines are limited to sharpening drill bits up to 13 mm in diameter. However, the grinding wheel used in these machines actually allows sharpening drill bits up to 20 mm.
For this reason, I designed simple 3D-printable holders. They are single-piece designs, each dedicated to a specific drill diameter to ensure sufficient strength of the printed part.
To clamp the drill bit in the holder, you can use two M3 screws, with the length selected as needed, screwed into two metal threaded inserts. The inserts should be heat-set into the lower part of the holder.
I have tested the holder with drill bits up to 16 mm.
I am also providing a .STEP file for anyone who wants to modify the design.
STL models are available individually in sizes from 14 mm to 20 mm, in 0.5 mm increments.
If, after printing, the hole for the drill bit is too tight, simply scale the model in the slicer to 100.3%–100.5%.
License
You may create derivative works based on this object, provided that all such derivative works are published exclusively on the MakerWorld platform and include proper attribution to the original creator. You may not share, upload, host, distribute, or publish this object—or any derivative work of this object—on any other digital platform, marketplace, or distribution channel. Commercial use of this object and any derivative works is strictly prohibited. This includes, but is not limited to, selling, renting, sublicensing, or using the object in any context in which you receive monetary compensation or other financial benefits.
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