* TinkerDifferent *
Retro Computing Community
Home | Forums | What's New | Search | Settings
YMK's minimalist MacEffects SE

Forums > Vintage Apple > Macintosh > Compact Macs

YMK
Active Tinkerer
--------
Joined: Nov 8, 2021
Posts: 408
Likes: 343
Dec 25, 2022 - #1
This is a Mac SE logic board with Hitachi PSU (everything recapped) in a @MacEffects Rev B case.

It doesn't have a steel frame or power supply enclosure.

Instead, some 3D printed parts help hold it all together, exposing nearly every square inch of PCB.

It's also missing a fan. A section of the case near the handle is cut away to allow for passive convection cooling.

The boot device is a MacSD with its SD card slot and USB port accessible through the floppy slot.

The internals are illuminated by 58 0603 amber LEDs.





The internal lighting produces a neat effect through the analog board:



A section near the handle is cut away for convection cooling:




This is the "with defects" Rev B case that can have a cloudy appearance. The case seems to respond well to the same products and processes applied to automotive clear coats. I was able to eliminate much of the fogginess with rubbing compound, polish and wax. I'm very happy with how this turned out and would recommend these great cases to anyone.
Attachments:
side1.jpg [View]
ab.jpg [View]
vent.jpg [View]

Liked by RetroViator,rjkucia,3lectr1cand 12 others

retr01
Senior Tinkerer
Utah, USA
--------
Joined: Jun 6, 2022
Posts: 2,474
Likes: 810
Mar 13, 2023 - #2
Wow, awesome! :)

So, how did you ground the high voltage without the metal chassis?

YMK
Active Tinkerer
--------
Joined: Nov 8, 2021
Posts: 408
Likes: 343
Mar 13, 2023 - #3
>> retr01 said:
Wow, awesome! So, how did you ground the high voltage without the metal chassis? Click to expand...

Thanks :)

In the first picture, you can see the power supply is grounded to the power input.

Logic and analog boards are grounded through the power supply.

Liked by retr01

AvadonDragon
Tinkerer
Tennessee
--------
Joined: Jan 27, 2023
Posts: 57
Likes: 53
Mar 13, 2023 - #4
@YMK Would you be willing to share your designs for the 3D printed parts?

YMK
Active Tinkerer
--------
Joined: Nov 8, 2021
Posts: 408
Likes: 343
Mar 14, 2023 - #5
>> AvadonDragon said:
@YMK Would you be willing to share your designs for the 3D printed parts? Click to expand...

Provided free for non-commercial use. The part is divided into two models to fit within the bed of most printers. For my SE, I joined the two pieces with a soldering iron. The STLs will need modifications for other power supplies.

Attachments:
mse_psu_plate.stl.zip (38.5 KB)
1678778854627.png [View]

YMK
Active Tinkerer
--------
Joined: Nov 8, 2021
Posts: 408
Likes: 343
Mar 19, 2023 - #6
>> retr01 said:
So, how did you ground the high voltage without the metal chassis? Click to expand...

Also, the CRT ground is still there, but moved to a different corner so it's out of the way.

Liked by retr01

3lectr1c
Active Tinkerer
the United States
--------
Joined: May 15, 2022
Posts: 668
Likes: 336
Mar 19, 2023 - #7
This is such a beautiful system that you've made! Love it.

Liked by retr01andYMK

Page 1 of 1

Home | Forums | What's New | Search | Bookmarks | RSS | Original | Settings
XenForo Retro Proxy by TinkerDifferent.com