Colecovision and ADAM Game Pad

Colecovision and ADAM Game Pad

Update 13.4.17:
Ok, ok. Final, final, promise cross my fingers and hope to die if I'm wrong...
-Some further tidying of the models
-Further options added
-More mock-up images to illustrate

Update 12.4.17:
Another day, another update. This is probably the final version... unless I add auto-fire capability to the PCB
-P and B button functions added to the PCB - Super Game Controller
-A new v2 .zip file for sending off to a fab house for PCB manufacture
-As a result the D_Pad buttons have been reworked

Update 11.4.17:
I've done a substantial rework of this model to make it easier to assemble and hopefully improve the final result.
-A rework of the button tolerances - sanding to get the fit right is no-longer needed
-Improved connection between the shell parts, with the addition of clips, for easier fit and glue-free assembly
-Shell base re-profiled for improved comfort - base will now need to be printed with support
-Cable grommet added
-Added an optional stabiliser for the D_Pad to stiffen it's action if required
-Num_Pad and action buttons reworked for a similar goal
-Addition of some blank Num_Pad buttons in case of printer resolution issues
-Fire and Arm now differentiated by a nub on two of the buttons
-Two alternate D-Pads
-Extra mock-up images

Do you own a ColecoVision game console? Maybe you are even more fortunate and own an ADAM Computer...

Great aren't they?

...did I hear someone say the controllers are a bit sh_t? Yes, you're probably right, maybe not Atari 7600 sh_t but they aren't the most ergonomic of little beasties.

Fear not, here's a little something for all those with cramped hands or those on the lookout for a replacement controller and like a bit of DIY.

You will need:

1. The included .stl files for printing
2. The .zip file containing the PCB 'gerber' files for sending to a PCB fab house
   (really easy, I'd recommend Seeed Fusion but there are plenty of others)
3. Some 6x6x4.5mm tact-switches (20)
4. A plop-load of diodes, I'd suggest 1N4148's but most will do. (26)
5. An Atari-type joystick cable, be sure it's got all the pins connected
6. The most basic of soldering skills
7. Some patience

It should all go together reasonably easily, just make sure you get all the diodes the right way round (it's marked on the PCB) and you've wired the wires correctly...
...in the latter case I've included the original Coleco schematic and my version of said schematic. The points on the PCB for soldering the cable are arranged the same way as the connector on a controller as detailed in both schematics. I'd strongly suggest not trusting to the wire colours but to buzz them out with a multi-meter...
...space is a little tight as I wanted the controller to be about the same size as a SNES game pad but there's lots of components to fit:
-Solder as neatly as you can
-Probably best to start with the switches for this one
-Cut the pins nice and short
-The lower shell have a channel to route the wire and help hod it tight against the PCB
-The PCB has a couple of holes near the cable solder-points for a cable-tie

Have fun!

PS
Yes I know a standard Coleco controller only has two fire buttons. Mine has four having duplicated each button...
...partly to give your thumb more places to rest but mostly for aesthetics.

PPS
There is a commercial game-controller for Coleco Systems that is taking orders:
https://atariage.com/forums/topic/289767-announcing-the-super-game-controller-for-the-colecovision/
My pad is intended for DIY'ers. If you're in need of a new and decent pad go check out the link and support the developers.