JIGFINITY: All-in-One Gridfinity Magnet Baseplate Bin Jig

3D-printing nerds rejoice! An easy way to glue up your new bins & baseplates!

5 min readApr 21, 2024

· What is Gridfinity?
· Magnets. How do they work?
· Enter: JIGFINITY!
· Printing your Jigfinity
∘ -> Download <-
∘ Components
∘ Tips & Customization
· Assembling your Jigfinity
∘ Materials
∘ Method 1
∘ Method 2
∘ Method 3
∘ Method 4
· How to Use Jigfinity
∘ To Assemble Gridfinity Baseplates
∘ To Assemble Gridfinity Bins
· Happy Organizing!

What is Gridfinity?

If you are into tinkering, 3D printing, or just being a nerd, you must have heard of Gridfinity: “the modular, open-source grid storage system for your workshop.” If you haven’t heard of it by now, boy, do I have a treat for you! You can find more information here or in this video by Gridfinity inventor Zach Freedman:

Magnets. How do they work?

Now, a big part of my own Gridfinity setup is these MAGNETS. They stick the bins to the baseplates and (usually) prevent me from fumbling my bits and bobs all over the floor mid-tinker. The problems come when adding elements to my Gridfinity system. Each baseplate and bin needs the magnets inserted. If you flip the magnet polarities when assembling, your baseplates eject your bins, jettisoning your bits and bobs all over the floor.

And if you don’t print your magnet holes precisely enough, you are forced to superglue the magnets into the bases and bins. If, like me, you are not particularly graceful with superglue, your bins, baseplates, bits, and bobs get stuck to your fingers, and more jettisoning occurs.

I have tried many 3D-printed magnet jigs designed by others, which aim to prevent all of the above jettisoning scenarios… and most of them work quite well. But when I’m done gluing and pressing, where do I put the jig? I have somehow lost more of these jigs than I have printed!

Why can’t I store the jig in the very Gridfinity system that I have so lovingly assembled with it?

This sparked an idea. I’ll reinvent the wheel because that is sometimes what tinkerers must do! I’d design a Gridfinity magnet jig that would…

Assist in magnet glue-ups for both bins and baseplates (something that is weirdly hard to find in a jig — it seems most are just made for bins?)
Stacks into my Gridfinity system when I am not using it.

Enter: JIGFINITY!

JIGFINITY lets you glue ’em, press ’em, stack ’em, and store ’em. It’s a three-part Gridfinity Baseplate AND Bin magnet jig.

JIGFINITY is, itself, a 2u Gridfinity bin, so when you are done using it, you can stack them compactly in your gridfinity system.

Printing your Jigfinity

-> Download <-

Before you can get your jig on, you must, of course, download the 3D models and sprint them out. Chose your favorite site below:

Components

Jigfinity prints in three small parts: bin-jig, base-jig, and magnet-holder. Print two (or more) of each for ultimate stackability!

Tips & Customization

The magnet holes in the model are set to 6.15mm. This size worked great for a snug fit on my Bambu Lab P1S in Elegoo PLA Black and Bambu PLA Basic Orange with these magnets. You may get a different fit.
I would recommend using some kind of support material for the base jig, as the little magnet lifters don’t print great without it. I used Bambu’s PLA Support in my AMS.
I designed this in Solidworks, starting with EllieWhoMakes’s awesome parametric Gridfinity bin model.

Assembling your Jigfinity

Materials:

1x (printed) Bin-jig
1x (printed) Base-jig
1x (printed) Magnet-holder
4x 6x2mm (standard Gridfinity) magnets per Jigfinity.

Method 1

Using an existing Gridfinity magnet base or bin. This method may NOT be recommended if you are particularly messy with super glue.

Method 2

Using another Jigfinity. This method is recommended if you are particularly messy with super glue.

Method 3

Using this Gridfinity Magnet Jig by Jools, if you already have one. This method is recommended if you are particularly messy with super glue and already have one of these jigs.

Method 4

Without a jig. This method is only recommended if you don’t have any existing Gridfinity items with magnets. Just be careful to install the magnets all in the same polarity direction! Prevent bit/bob jettisoning!

How to Use Jigfinity

To Assemble Gridfinity Baseplates

Set the whole Jigfinity assembly down so that the base-jig is on top, and place magnets on the four magnet lifts — they will snap to the right orientation.
(Apply minimal super glue as needed to the holes in the baseplate.)
Flip the Jigfinity over, magnets down, and remove the bin-jig
Place the Jigfinity with magnets into the base.
With your finger in the “holdy-hole,” separate the magnet holder from the Jigfinity.
(Press each magnet as needed.)
Lift off the base-jig.

To Assemble Gridfinity Bins

Flip the Jigfinity assembly so that the bin-jig is on top, and place magnets on the four magnet lifts — they will snap to the right orientation.
(Apply minimal super glue as needed to the holes in the bin.)
Flip the Jigfinity over, magnets down.
Place the Jigfinity with magnets into the bin.
With your finger in the “holdy-hole,” separate the magnet holder from the Jigfinity.
(Press each magnet as needed.)
Lift off the bin-jig.