Fine tuning adapter for Hapstone / Ruixin / Edge Pro / Other sharpening systems.
This will enable you to adjust your sharpening very accurately in micro angles.
I made 6 options to print:
1 : Square 8mm internal diameter for the Hapstone V7 / Hapstone M2 / Hapstone R1 sharpener. (Works with square or round 8mm rods)
2 : Round 8mm internal diameter for Edge Pro Apex / Edge Pro Professional / Ruixin Pro. (This is a Shortened version) (Also works with Hapstone M2 / Hapstone R1)
3 : Round 8mm internal diameter for Hapstone M2 / Hapstone R1 / / Ruixin Pro sharpeners. (For the upgraded 8mm Ruixin Pro vertical rod)
4 : Round 7mm internal diameter for Ruixin / Similar for 7mm vertical rod sharpener systems.
5 : Round 8mm internal diameter with Extension Tube for Ruixin Pro to be used with my Guide Rod Holder (See the following link) - https://www.thingiverse.com/thing:3629639
6 : Round 7mm internal diameter with Extension Tube for Ruixin Pro to be used with my Guide Rod Holder (See the following link) - https://www.thingiverse.com/thing:3629639
For Info - The Ruixin Pro Updated version that item 5 and 6, and my Guide Rod Holder mentioned above is for: https://ebay.us/uKP4BP
Print with NO support for the threads, or it will be extremely hard to remove the supports from the threads.
After printed and cleaned up, simply use your Hapstone or Similar M4 thumb screw to cut a thread into the small 2mm hole in the base part. (or use any other M4 screw to lock the base into position)
The base part (smooth round part) locks onto your vertical guide of your sharpening jig with a small thumb/screw lock, and the top knurled part threads onto it. Rotate it up and down with the knurled part for micro angle adjustment.
Be sure to "Work" the threads properly by screwing the 2 printed parts together quite a number of times until it smooths out nicely before using it.
Some more of my designs: