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Yeah HTPLA is kinda interesting. For me personally the 2x the price of PETG and ABS and the need to do the extra step post heat treating are not necessary for this application. If I needed something over 100C it would probably be the best choice for ease of printing. Carbon fiber adds even more...

Actually a quick follow up on FDM printing and why you see mostly PLA and PETG and not ABS, ASA or Nylon. It's mainly because of ease of printing. The different plastic tend to shrink more or less when they cool. If a plastic shrinks a lot then it can cause the part to curl at the edges when...

Hey JDW, Sorry for the late response. Haven't really been on the forums that much of late. My initial thoughts like you said is that PETG should be fine. Most sites quote anywhere from 70C-85C for the temperature where it will start to deform. ASA and ABS would give a big margin at the ~100C...

Ok just finished updating the git repo with the info for v1.2 with supercapacitors. I've tested only with a M5120 with copying between the floppy and mechanical hard drive. If anyone is able to test on a Macintosh Portable with backlight (M5126) let me know. Pretty sure it will be no problem...

With regards to where to get the heatsink clip I'm always willing to sell the designs I've made by just PMing me either on this forum or on the Tinker Different discord. My initial thought would be to sell just the clip for $5 USD and a clip with the heatsink for $10 USD. At some point I'll have...

Hey Eric yes I do have some for sale if you're interested at $25USD + shipping.

It wouldn't work since the ram from a PB 1400 uses DRAM. You would need either SRAM or PSRAM. On top of that you would need to design a new RAM expansion module for the Portable. For the Portable all the logic for RAM chip selection is on the memory expansion card itself so it's more complicated...

Oh this board is really interesting since it can go to 8MB and has a MMU! Looking forward to seeing what the board looks like.

Thank you. I try my best. Hopefully someone else will find it useful. If anyone needs a pair I'll be selling them for $10 USD + shipping. Don't feel like doing a patreon thing so I'm going to try to start selling stuff to help pay for all these projects.

alxlab GitHub Repositories Power Macintosh G3 Drive Rail 922-3228 815-2734 This is the drive rail for the Power Macintosh G3 beige desktop. The Apple part number is 922-3228 and the part is marked with 815-2734. This is used for the CD drive bay and the extra hard drive or zip drive bay...

Yeah that's a given. I'm not melting it until I get my v1.1 plastic from JLCPCB

I'll make a proper post and github repot for the interrupt/reset switch back but until then here's the latest models. I updated the height slightly. I've included the 10x version of the model if someone wants to have it printed at JLCPCB. The best results was with with the MJF printing and PA12...

Yeah exactly if you don't want to do any soldering that's a good choice.

That's very interesting! I just checked my SE analog board and it has the through holes for the fan power like yours. I wonder if all the analog boards have the solder points even if they use wires.

Why did you have to make a hole? I just ran the original wires on top of the bracket like Apple did for the original squirrel cage fan and metal fan brackets.

I just committed the v1.1 of the bracket on github. Enjoys :)

From my bookmarks. I'm pretty sure I got a couple other pages bookmarked like that but I think this covers pretty much everything the other sites did. The PDF is nice too. https://web.archive.org/web/20190618105152/http://davespicks.com/writing/programming/mackeys.html

The bracket would be one piece like the current one on github. You would screw the fan into the back of the bracket and then screw the bracket onto the analog. That's it! I'll finish the model tomorrow.

It's no problem. Part of the reason of the forum is to have discussions.

Going back to this quote from the LC III dev notes: "At system startup, the boot code determines the amount of RAM installed in all banks and then sets a RAM configuration register in Sonora." I would assume if there was any activity on the address lines it would be during boot up only while...