Granlunds FrankenSTein

[agranlund]

that's a pretty good price to upgrade your old ST

Yeah absolutely!

[agranlund]

Screenshot 2020-10-30 at 15.18.30.png

And off it went into production! This one should be tons of fun :)

Screenshot 2020-10-30 at 15.18.46.png

[agranlund]

Rough filling and sanding..

_20201103_133500.JPG

_20201103_133600.JPG

"Only" body filler, sanding, more sanding, new cutouts and paint left :)

[DoG]

Ooh. That's really low fit. Very nice placement.

[agranlund]

Rough cutouts for the ports done. A little bit of cleanup left to do and then get it ready for paint :)

_20201105_144730.JPG

[agranlund]

New stuff finally arrived from JLCPCB after having been stuck in Germany for way too long :)
Looking forward to building the new blitter board and getting the gfx card up and running but I started with the new rom board.

Finally my ST has a built in RTC!

_20201111_113536.JPG

The new one can optionally replicate the rom size jumpers for motherboards which don't have these, so it's a fairly nice companion to the old and new blitter boards.

I realise I'm in a minority fiddling with the short STM model but in case someone else finds it useful I will upload the gerbers and schematics once it has been tested to work correctly on a motherboard with no 256K/1M jumpers.

[PhilC]

Looks good to me @agranlund and yourself know ill find it useful :D

[agranlund]

Looks good to me @agranlund and yourself know ill find it useful :D

The Gerbers and Eagle files are now on Github (and your PCB's are in the hands of the postman, fingers crossed it works fine on your motherboard :D)
https://github.com/agranlund/STRom

[Mattu]

I realise I'm in a minority fiddling with the short STM model but in case someone else finds it useful I will upload the gerbers and schematics once it has been tested to work correctly on a motherboard with no 256K/1M jumpers.

STM owner here, I follow your projects with keen interest. Excellent work!

[Icky]

I'm with you too @agranlund, I have a short model too and am watching with interest, in particular am waiting to see the Phoenix Sparkalaphobia (FPGA Blitter) running in a short once we get the board done. :)