Sherpa Mini SHT36 V3 toolhead board mount
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This mount was designed to mount a Mellow Fly SHT36 v3 toolhead board to a Sherpa Mini for A4T, TAP and XOL compatible.
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Informacje o modelu
- Źródło
- Printables
- Kategoria
- Voron Parts & Upgrades
- Licencja
- Creative Commons — Attribution
Background
I wanted to swap from a Voron StealthBurner with SB2209 can (RP2040) to something more lightweight and compact. So I chose the A4T toolhead as a basis. The Sherpa mini and Dragon HF hotend (+MZE) were already in my possession, together with my existing Voron TAP bracket.
I also wanted to take this chance to try another toolhead board as well, since the SB2209 is pretty bulky and was giving me issues. However I didn't want to lose on functionality so the Mellow Fly SHT36 V3 max was my choice replacement.
Sadly I couldn't find a mount I liked, so I designed my own. Along the way I decided to try cartographer with my A4T, so I also have a XOL mount version.
Design considerations
Keep 3.5mm spacing for rear-mounted connectors and components
Follow the profile of the board
Cut as much weight as possible
Still make it as rigid as possible
Make both USB and CAN usable
Make sure any cables can be secured
I might have gone a little overkill but this should suit all my needs, and now I'm sharing it with you.
Print instructions
I've printed mine in ASA using Voron spec, so 0.4 nozzle, 0.2mm line height, 0.4 line width, 5 walls/top/bottom 40% gyroid infill etc. No supports needed.
Required materials
2 x M3x16mm BCHS bolts
1 x M3x6 BCHS bolt (XOL version only)
Installation instructions
To install the toolhead board mount, make sure you have the correct spacers installed on your Sherpa Mini, after which you can simply line up the boltholes and sandwich the mount in between the SHT36 v3 and the spacer, insert the bolts and tighten fully.
If you're using the XOL carrier, you can attach the shorter bottom bolt now.
Either the USB or CAN cable can remain plugged in and strapped down with zip ties to provide strain relief on the plug. There's also an option for an 1mm spring steel strain relief wire straight through the middle. If you decide to use this, make sure to bend the end of the wire a little so it actually stays in place.
Notes
If you don't have a suitable spacer, I've also designed a toolhead board spacer for the Sherpa Mini: https://www.printables.com/model/1851405-sherpa-mini-toolhead-board-spacerbrace-for-a4tsb22