Voron 2.4 Snap Latches - Metal Pins and Cutting Guides

I really liked richardjm's convenient snap latches - although was put off my reports of broken filament hinges. I decided to replace the filament hinges with 1.5mm metal pins, to side-step this issue - with the pins the latches also seem to have more holding force than the originals, which could be desirable for "squish" against the foam.

I've hardly changes anything to the original design, other than reducing the diameter of the holes to fit the 1.5mm pins. You can use richardjm's included fusion360 files to do the same, one of the parameters controls the pin diameter, although in my experience changing this resulted in broken fillets. I also adjusted the nut width to 22mm, so that I could use the spring loaded 2020 nuts I had on hand (mine are a little wider and so didn't fit the original file).

I used a 5.5mm panel depth to give the panels a little bit of squish against the 3mm foam & 3mm panels i've used on the entirety of my printer. If you're wanting to reproduce for other depths start with richardjm's original fusion 360 file. I used a 1.7mm pin diameter - this .2mm tolerance gave a good balance between easy installation and not wanting to fall out.

Unfortunately, they don't sell metal pins in the oddball lengths needed, and I didn't want to mess with the original design, or alter it's functionally in any meaningful way - they are already a great design - and the others on here that use screws seem too bulky for my liking.

My main contribution here is the pin cutting guides - I've included two files, one two cut 2 of the short pins for each latch, and one to cut the longer pin that runs through the entirety of the part. I've included the Fusion 360 file, should you need to adjust these. I based the measurements off of the hinge design and parameters I used, so this WON'T work if you're using the original latch STLs - in this case you can change the parameters in the Fusion 360 file after measuring the dimensions you need for the pins.

Simply insert the metal rod into the guide, use a file or knife to mark where you need to cut and use bolt cutters to cut the rod. Or you could run a saw against the guide edge of the guide to have repeatable cuts. File any sharp edges so you don't cut yourself during assembly (ask me how I know).

The guides have markings as to differentiate between the two lengths needed.

This is the metal rod I used for my pins:
https://www.amazon.co.uk/sourcing-map-1-5mm-300mm-Stainless/dp/B082ZP4HMH/

For working out how much rod you'll need about 75mm of rod per hinge.

• Decreased and tested tolerances of hole diameters for use with 1.5mm metal pins.
• Created cutting guides to accurately and efficiently cut metal pins.
• Increased nut width.