Heyho

A knife maker friend of mine came to me with a request to print a stop for his disc sharpener using the MagJig95 switching magnet.

I quickly recognized the potential of these magnets for smaller contact surfaces and started to design my ideas for a multifunctional system.

So here are the first results of my work. All current functions at a glance:

1. Stable system.
2. Easily adjustable / customizable.
3. Small footprint - can also be used with very small contact surfaces!
4. Dampening Sytem in order to be able to position the magnet perfectly.
5. Many possible adapters (more to come!)
   e.g.

• Adjustable angle stop
• Connecting piece for larger stops (e.g. made of wood).
• Connecting pieces between the magnet systems for more stability
• Flat fence e.g. for light planing or sanding work.
• Handle adapter to lift light (metal) objects or to transport the wooden fence easily.

I am still open to suggestions as to what other adapters I could design! If you have any other ideas, just write to me! New Adapter will be for free and updated to this profile.

Required Hardware:

In addition to the printed parts you will need:

2 x M4 x 20 mm Screws to mount & adjust the MagJig95 Magnet.

1 x M4 x 30 mm Screw (Adjustable Anglestop Plate).

1 x M4 x 25 mm Screw (Adjustable Anglestop Plate).

1 x M4 x 25 mm Hexagon Head Screw (Knob for the adjustable Anglestop),

4 x M4 Square Nuts.

Optional: 1 x M3 x 10 Cone Head Screw + M3 Square Nut for a solid connection between the base and angle adapter.
You can also use washers and/or threadlocker if there is still some play in the adjustable stop.

To Mount the wooden Adapter to a piece of Wood you can use normal wood screws with a diameter of 3,5 mm.

Material selection

I made the parts for my prototypes with the stiffest possible material. Primarily with PETG-CF. But PLA can also be used wonderfully for most parts.
If you work a lot on grinders where the workpieces are likely to get hot, it is advisable to choose heat-resistant materials for the contact surfaces.

You should definitely print the damper from flexible material so that you can adjust the magnet perfectly.

Selection of parts

I took the trouble to design all the parts with printed threads for heat inserts and square nuts. I favor the square nuts because they are easy to install and inexpensive.

Printing Instructions
All parts should be printed with at least 4 perimeters and 30% infill in order to be stable and durable.
Your prints must of course be well calibrated so that I have not set the tolerances unnecessarily high to ensure a stable and well-functioning system.

For the TPU damper, I made a height range adjustment (0.4 - 3 mm) and printed the middle layers without a perimeter. Depending on the infill and filling density, you can adjust the damping. I finally worked with 20% "Cubic" infill.

I welcome any constructive criticism and can also develop new features if required! Have fun printing and using this system!

You should use supports in some areas on the Base and the Anglestop adapter.

Adjust magnet

Insert the damper and then the magnet. The first installation may require some force if the seam sticks out a little. You can avoid this by removing the seam in the inner area beforehand.
Insert the 2 M4x20 mm screws and tighten them so that the magnet is absolutely flat with the underside of the base part.

Press Fit of the Hexagon Screw & the printed Knob

I like to avoid gluing parts together so I designed the knob with a tight pressfit. You can use my jig as an aid to assemble the pieces together. Simply stack them up and force them together with a hammer or a vise.

Wooden Adapter

You can decide whether you want the system to be permanently attached to the wooden stop or easily removable. Simply use the additional 5th hole to connect the base to the adapter and the wooden stop.

Of course, the handle works primarily when the parts are firmly connected. Otherwise it offers no security against the base coming loose!

Mirror

Depending on the application, you can also simply mirror all parts in your slicer to achieve perfect alignment of the stop!

MagJig Handle:

https://www.printables.com/model/717466-magswitch-magjig-95-handle


I've put a lot of work into this project and would be grateful for any recognition if you benefit from it too! I have also developed a larger system for this switching solenoid. I can publish this at a later date.





Prototypes :)