Jump to content
IGNORED

New Case for Texas Instruments TI 99/4A 32K Sidecar Memory Expansion Card


COREi64
 Share

Recommended Posts

Thought I'd show you guys my new case design for the 32K Sidecar Memory Expansion card.

 

I came up with this design because I wanted to protect the card I had just built for myself, and wanted to re-direct the LED out the side where it's easier to view.

 

post-45854-0-04696300-1521695875_thumb.jpg

 

At the same time I decided to do a bit of a run on these cards, so if there's anyone looking for one, I can set you up.

 

Here are some photos of my creation. I chose black for the back, and what appears in natural light to be a steel grey (to mirror the original case style of black with brushed metal top). What's interesting about this grey filament that I'm using here is that it's actually a glow in the dark blue, so when you shut it down for the night, you'll see an erie glow coming from the side of the machine.

 

Thomas

COREi64

 

post-45854-0-40992400-1521695323_thumb.jpgpost-45854-0-37703900-1521695341_thumb.jpgpost-45854-0-53459100-1521695355_thumb.jpgpost-45854-0-92827000-1521695376_thumb.jpgpost-45854-0-56514200-1521695395_thumb.jpgpost-45854-0-76100500-1521695403_thumb.jpgpost-45854-0-55252700-1521695410_thumb.jpgpost-45854-0-48134300-1521695428_thumb.jpg

 

Here's the board I put together:

 

post-45854-0-23590400-1521695625_thumb.jpgpost-45854-0-06222700-1521695632_thumb.jpgpost-45854-0-59088600-1521695651_thumb.jpgpost-45854-0-17202800-1521695671_thumb.jpg

  • Like 14
Link to comment
Share on other sites

I really like the spacers approach on the inside to keep the pcboard snugly in place. I also really like the styling of the case, and the raw look of your pcboard parts selection.

 

The practicality of the door for the expansion headers, is that it won't work. The entire grey part will have to come off for a TIPI board to attach. I don't know what anyone else is building on that side of things. So you might simplify the print if you make them available, and just do away with the door.

 

-M@

Link to comment
Share on other sites

Hi again.

 

Thank-you so much for your kind words. Very much appreciated. Makes the effort all worth while.

 

With respect to the expansion port, I'm aware that there's nothing for it at the moment, but thought it might be nice for those experimenting that wanted to run say a ribbon cable out... Mostly I would expect it would remain closed for most people. The cover is very snugly in place, so no worries that it would fall out.

 

If additional boards come out, I will either redesign the case, or possibly offer an updated lid that could accommodate any addons. If it was a new case, I would of course give anyone who bought one of these already a severely discounted price to upgrade to the new case design.

 

The price you see on e-bay is elevated (to cover fees). I also have a shop where you can get it for less.

 

Jedimatt42 - If you'd like a free case (any color/configuration you'd like), I'd like to mail one to you as a thank-you for providing the community such a wonderful add-on! Just send me a message and I'll set you up... no charge.

 

Thomas

COREi64

 

http://corei64.com/store/index.php?cPath=23

 

I hope you guys feel the pricing seems reasonable.

 

Back in the 80's I was a Commodore guy, but always wanted to try the TI. Of course back then, it was one or the other... and I had made my choice. Now however, I'm enjoying learning and playing with my TI99.

  • Like 2
Link to comment
Share on other sites

Thanks, glad you like the case design.

 

Thomas

 

ive been on vacation so a little late to the game. :) those are fantastic cases and i'll gladly buy one once I procure the 'small form factor' cards to start replacing my PEB ;)

Link to comment
Share on other sites

One of the things I really like about this case is the metal retainers/attachments for the screws. A lot of 3D printed stuff have the screws going straight into the plastic, which can get sloppy over time if you have to open it up to change jumpers or anything. This is quality construction. It appears a lot of time and thought went into it's design. I was also impressed by the inclusion of a little Allen wrench for the screws. icon_thumbsup.gif

Link to comment
Share on other sites

I've been thinking lately that the "Ultimate 3D Printed Case" for the TIPI would resemble a mini TI Peripheral Expansion Box in tower format. EVERYTHING would be in one plug in unit.

 

The lower area would snugly fit the Speech, 32K and TIPI while the top would have a slot to hold the Raspberry Pi. All the cords would be enclosed. Below is a rough 'idea' of what it might resemble.

 

gallery_35324_1027_16731.png

 

I think my image here looks taller than it would really be, but you get the idea.

Link to comment
Share on other sites

I'd like to see a low profile replacement for the speech synthesizer that uses Matt's pin expansion.

 

Yeah, that would make for a thinner profile for sure. Dunno how long something like that would take to develop, but once I get the next case I'm calling a halt to further expansion for awhile.

Link to comment
Share on other sites

  • 3 weeks later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
 Share

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...