TRS-80 Model 3/4ish

thingiverse

TRS-80 Model 3/4ish: I may have created a monster... There's one or two, maybe more, old computers in the house and my 14 year old daughter seems to have taken an interest in old computers too. More; she wants to build her own from scratch as, understandably, she doesn't have the same nostalgia for 70s and 80s machines. So after some discussion we've embarked on on building a RC2014 computer together - a rather nice, modular, Z80 based machine that has a good deal of fiddling potential. It occurred to me that it would be nice if it could be housed in a suitable case so I designed a TRS-80 Model 3/4ish box that she seems very pleased with - I'll also have an excuse to build that large volume printer that's been a box of parts for a while as I think my Anycubic Kossel Plus will struggle unless I cut the model in to an unfeasible number of pieces. Size: The .stl parts, as included, will either produce a small model, or pile of parts, that should fit just about any printer. But the real intention is to have a case suitable for a (nearly) full size mechanical keyboard and a 4:3 8" TFT for a screen. With that in mind the model can be scaled up to fit whatever you wish to use it for, but I intended the fully scaled case to fit a K552 - a decent-ish, for the price, mechanical keyboard that will hopefully not look too out of place. The two coloured rectangles within the exploded view are the RC2014 back-plane and a Raspberry Pi for scale. ...yep, as intended, this thing will be quite big - I'd guess at about 2/3 scale when you hit the x10 multiplier on the .stl files. The Model: It's not an exact replica of a Model 3 or 4 but more an 'essence of' case intended to be either a nice model or used as the basis of a computer build. Pi, RC2014, MiniITX, whatever. There are no slots cut in the model as they will depend on the use it's put to. Either modify the 3D files to suit or cut out the necessary holes post-printing. Also the screw points (six underneath and four for the back) are not drilled-out as their necessity / size will depend on the purpose / size you are going for. Again, modify the files as needed, drill post-printing, or glue. I couldn't be bothered to properly model a keyboard as I imagine this will either end up being a small model where such detail will be lost, or a rather larger case in to which a real keyboard can be fitted. ...and finally: RC2014.123dx is a full-size 123D Design file with fixing holes present, stand-offs for the RC2014 itself, and a suitable opening for I/O. This model is 10x the size of the other files to allow the use of a full size keyboard. I've not included a .stl file for this one as you will almost certainly need to cut it up to fit your printer... ...of course a much smaller case will do fine but you will need a smaller keyboard and screen.