Part IV: Model 12 Card Cage Build, Install, And Power Harness

It's finished! In Part IV of the card cage build for the TRS-80 Model 12, I compare two different prints of my card cage from CraftCloud and Shapeways, address electrical harness and grounding needs, and assemble and install the card cage. I then test it all out.

This video is *NOT* sponsored by any brand or provider in any way. I paid full price for the card cages for the purposes of this comparison and have not been in contact with any company in any way other than that of a paying customer.

TE Connector Part Numbers:
Male connector housing: 1-480271-0
Female connector housig: 1-480270-0
Female pins: 350550-1
Male pins: 1062-16-1422

Tools Part Numbers:
TE Crimper: 354940-1
Pinned Die Set: 90546-2

SFX (in order):
Scrabble Letter Placement

Music:
None. Just me jabbering.

Links:

Chapters:

Intro (0:00)
CraftCloud vs. Shapeways Cage Comparison (1:33)
PSA: Don't Use Floppy Drive Power Cables For Backplane (12:19)
Power Harness Splitter Overview (13:25)
Voltage Check (14:44)
Making The Power Harness (17:49)
Assembling the Cage (22:23)
Installing the Cage and Wiring Harness (29:04)
Grounding (34:43)
Testing It Out (37:36)
Outro (41:57)

I do these videos unscripted, so I apologize if the in-the-moment descriptions of things are a bit scattered. If you have any questions/comments about this video, you can find me in any of these fine locations:

The Tandy Discord Server
The CoCo Nation Discord Server
The TRS-80 Color Computer (CoCo) group on Facebook
The CoCo Crew Podcast group on Facebook
The TRS-80 Models I-4/4P Group on Facebook
Tandy / Radio Shack Model II /12 / 16 / 16B / 6000 Owner's Group on Facebook
Twitter (I'm TJBChris there...)
The Level29 BBS (I'm TJBChris there, too.)
Particles BBS (Guess who I am here? Yeah, TJBChris.)

Thanks for watching!

[BollingHolt]

I know this isn't related, but I thought you might like to know that in my car right now is a rescued Compaq Portable, TRS-80 Model II, Model II Disk Expansion unit (seems to have two drives), and a DMP-400 printer. You were the first person who came to mind when my old fraternity brother called me up and asked me if I wanted these things out of his father-in-law's storage unit. Luckily, there were fitted dust covers on the printer and the TRS-80, and the disk expansion unit was boxed. Oh, it also looks like I have all the manuals and a pack of 8-inch disks. I have not the first bit of knowledge about these machines and don't know when I'll get around to them, but I'm hoping to take a peek over the weekend!

[BudEasil]

Incredible Project! Happy New Year 2024. Great work as Always.

[timwoodland]

Excellent! Great content as always. Thank you for the floppy connector to backplane warning! Where is the printed cat no. something like "26-1512" along with the faux catalog listing? 😄

[PixelPipes]

It's expensive but that print you went with in the system turned out really sharp and polished looking!
(p.s. was it freezing cold in there? because you seemed like you were shivering)

[SudzBud]

Out of curiosity, you say the one you printed is between the two, what did you pay for your 3d printer? Seems for the price of the one you could get a fair printer and print your own. It does look to be great quality though as it should be.
Great series btw!

[zodakb]

Commented from about 5 minutes in... The Craftcloud one looks a bit under-extruded.