toxBox: Noyito 4-Channel Housing

toxBox v1

Update: After some field testing, I reprinted with Tough PLA and redesigned the enclosure to be more structurally sound and require less hardware (snap fit, FTW).

This is an enclosure for the Noyito brand four-channel relay board with Anderson Power Pole mounted housings.  This is the board:

https://www.amazon.com/dp/B07C3HXZQ9?psc=1&ref=ppx_yo2ov_dt_b_product_details

The intent of this design is to house the board, all wired up, with Anderson Power Pole power inputs and outputs.  It accepts one 12v power input , and USB B input for control, and four switchable 12v power outputs.  I designed this enclosure for use with astrophotography, and wrote a corresponding ASCOM driver for it here:

https://bitbucket.org/cesvensson/ascom.noyito.switch/src/main/

More detailed instructions on the wiring and construction are at the link above.  The design consists of the following components:

• Lid
• Box
• 2 Mountable housings for 4 APP connectors
• 1 Mountable housing for 2 APP connectors

To assemble the enclosure you will also need some hardware:

• (6) M2 Threaded inserts and corresponding screws with washers.  Use them to mount the APP housings.
• (2) 14-16mm M2 screws and (1) 10mm M2 screw.  Put these through the housing and pin holes of the APP connectors to keep them in place.

I recommend splitting the APP housings in half, and printing them as shown in the attached 3mf files.  This makes it easier to insert the APP connectors, and allows for some tolerance.  I printed this in PLA, but a stronger material would be better suited, especially for use outside or in hot rooms/vehicles.

The wiring for the Noyito board is not required for this print, but it is intended to be wired such that the single positive power input is split to each of the four relays in the Normally Closed positions, as well as into the 12V input for the relay control.  A single negative power input is similarly split into 4 negatives for all the relays, and 1 negative for the input power.

Planned Enhancements

I've printed and assembled a version of this, and still want to make some adjustments, including:

• Fasteners on the sides of the enclosure - Done!
• Threaded inserts for the power pole pin-hole screws
• Softer edges - Done!
• Variants with other power connectors (i.e. barrel jack)
• 8-Channel variant