For news TAP HERE and scroll down

Subject: Bay Redesign For Solid State Relay Dual Deployment


esotericdude
Like 2019-04-30 12:54:59Z

This was still a work in progress on the last launch, so I didn't take pix. The new bay was used on the last launch, however.

The core bay components are from LOC, but I didn't use their smaller plywood for sled design. I also did not use any of their metal hardware.

This redesign was long overdue because of the drastic change in electronics housed in the bay. AKA I needed more space.

Like the last bay, there are no disconnects with any of the wiring. All wiring is glued or zip-tied near connectors to inhibit yanking at the ends when performing maintenance.

The wiring is 22 / 4 stranded CU shielded security wire. This wiring is rugged and isn't as prone to RFI leakage especially if sleeve shield is grounded properly.

While using kevlar loops is now popular on bay design, it was unheard of when I started making bays like this.

Since the bulkheads are not load bearing, they are secured with 1/4" nylon screws.

The electronics board slides into the groove, drawer style.

Images

IMG_20190430_105356~2.jpg
Like
IMG_20190430_105542~2.jpg
Like
IMG_20190430_105745~2.jpg
Like
IMG_20190430_110200.jpg
Like
IMG_20190430_110730.jpg
Like
IMG_20190430_110735.jpg
Like
IMG_20190430_110801.jpg
Like
IMG_20190430_110806~2.jpg
Like
IMG_20190430_110811.jpg
Like
IMG_20190430_121036.jpg
Like
IMG_20190430_121105~2.jpg
Like
IMG_20190430_174356.jpg
Like
IMG_20190430_174502~2.jpg
Like
IMG_20190430_174520~2.jpg
Like
IMG_20190430_174546~2.jpg
Like
esotericdude
Like 2019-05-01 08:49:37Z

You can get the shielded cable by the foot. I believe it is $0.34 per foot (4 wire) at any home depot. The details online are wrong for the by the foot - so I'm not posting the link.

Here's the details by the roll:

4 wire: https://www.homedepot.com/p/Southwire-500-ft-22-4-Gray-Stranded-CU-CL3R-Shielded-Security-Cable-57572444/202316269

2 wire: https://www.homedepot.com/p/Southwire-500-ft-22-2-Gray-Stranded-CU-CL3R-Shielded-Security-Cable-57572144/202316268

For heavier duty, like using for launcher wire, use 18 gauge. It's nice.