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Baby's first PCB

Interesting, so it might work on the Portable PDS as well, no? Those were my two wildest dreams way back then. Has anyone done an 030 in the Luggable? I've been out of it around here for so long I haven't a clue.

I've been doing everything wrong handed recovering from rotator cuff surgery. Thought I'd get some wrongheaded stuff typed up that way here. Glad to know this one's just way out of my league, not entirely impossible. :)
 
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Trash80toHP_Mini said:
Cache, on board memory and faster clock were features on the higher tier Performer models.

Thanks much for explaining the source of the problem! @Bolle never told me that it was a problem with DSACK.

I'll bounce this pipe dream off you right here: might the Performer be miniaturized into a 16Mhz 68030 Processor Card for the PowerBook 100? Would the same speed 030 swap itself make for enough of a speed bump to matter? pb100'S 8MB of memory at 16MHz might make it interesting? It should at least run 030 code, no? That would open up some software, maybe even OS upgrade doors I'd think?
Click to expand...
Instead for the PB100 I’d love one for 5120-5126🤠

Edit: Trash we have the same pipe dream;)
 
Joopmac said:
Instead for the PB100 I’d love one for 5120-5126🤠

Edit: Trash we have the same pipe dream;)
Click to expand...
Luggable version of the Performer is something I did a lot of Illustrator dreamwork upon in the far distant past. Having Performer discussions here hit page one again is thrilling to me.

With a new age magician like @zigzagjoe chiming in here this dinosaur has hopes for further Performer advances. January 29th will mark eight years of Performer clone development!
 
luRaichu said:
My board is intended to be easy to assemble, without having to solder dense surface mount packages. If you want QFP I'd say do it yourself, if I can do what I've done here then you can too.
Click to expand...
Directly back on topic:
It's nice to see we're on the same page. I've had a tube of thruhole GAL sockets leaning across the back of the HackHutch™ for almost all of those eight years! KISS principal compliance in assembly! :)
 
And momentarily off topic again for a moment:
Trash80toHP_Mini said:
That's just the last five weeks post-op, but I've been pretty much been off the KBD/mouse since injury at work five months ago. Got addicted to YouBoobTube vids even right handed instead.
Click to expand...
Ah, a lefty! (might've already known, but I've long forgotten if so) No wonder you have so many right-minded projects! :D ;)

I'm right-handed, but I can appreciate left-handedness because my mother's also a lefty.

"...we now return you to our originally scheduled programming, already in progress...."

Trash80toHP_Mini said:
With a new age magician like @zigzagjoe chiming in here this dinosaur has hopes for further Performer advances. January 29th will mark eight years of Performer clone development!
Click to expand...
8 years? Already?? It feels like it just happened!

Here's to another 8 years of interesting discoveries and wacky developments! The recent 68060 breakthrough, for example!

c
 
Nope, a rightey, lefties have it easier when living one handed, says my lefty ex with recent broken wrist.

It has indeed been eight years:
Trash80toHP_Mini

Thread 'MicroMac Performer Redux: Cloning a 68030 Accelerator for Compact Macs'

P1010052.JPG

P1010050.JPG

This one is mine, it came as wonderful surprise in my Drexel 128K that had been upgraded to Plus and then to "4MB SE/30" status over the course its remarkably extended useful lifetime. Not one of the original, silk screened student versions we've come to appreciate, but a killer machine from the storied halls of Drexel University nonetheless. But that's another story

 
@Cory5412 On the suggestion of others, please rename this thread to "Honey, I shrunk the MicroMac Performer" to make it more easily findable in searches. Thanks.

I did ding up my first assembled Polyphloisboisterous '030 by trying to desolder the headers so I decided to build another one. The new parts are only $20 off DigiKey.
 
Interesting, nicely done.

Mechanical Engineer middle little brother did blade server packaging design. We talked about cooling in this context and he said that anytime a fan is introduced into a system designed for convection cooling, convection goes out the window.

No criticism whatsoever, just food for thought. Might make for an interesting discussion?
 
Was thinking about this and might have come up with a more efficient method. Haven't got ready access to a
Plus ATM, but a combination of Radius' redirection baffle with a printed duct using a fan to pull more air in thru the side/front vents for cooling upgrades directly to over-pressure the case above should do nicely.

I looked into this many years back. IIRC the fan directed air at the transformer at the front.

edit: also, a more KISS compliant duct mounted to your fan pulling air in from lower in the case would prevent fan from pulling air in from the top vent would improve efficiency. That 1990 book leaves a bit to be desired in many instances if memory serves.
 
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Trash80toHP_Mini said:
Was thinking about this and might have come up with a more efficient method. Haven't got ready access to a
Plus ATM, but a combination of Radius' redirection baffle with a printed duct using a fan to pull more air in thru the side/front vents for cooling upgrades directly to over-pressure the case above should do nicely.

I looked into this many years back. IIRC the fan directed air at the transformer at the front.
Click to expand...
That’s a solid idea. Interestingly, Apple ended up doing something very similar with the Macintosh Classic II design. You could definitely pull that off in a Plus case by placing the fan at the bottom to blow upwards (with some modifications to the chassis); it draws cool air from those lower side vents exactly like you're picturing.
 
Finished building second unit today, this time with correctly assembled headers.
ASSY-CORRECTHEADERS.JPG
Here's what the socket on top of the 68000 looks like.
68000-SOCKET-1.JPG
When fully seated, the bottom of the upgrade actually touches the top of one of the SIMMs. Not a big deal for me but I will try to make it shorter in the next revision.
ASSY-INSTALLED.JPG
It works!
PERFORMER-PANEL.JPG
Benchmarked with Speedometer 3.23.
IMG_1532.jpeg
I made a chart to visualize the overall performance gain better.
SPEEDOMETER-RESULTS-SCALED.PNG
Merry Christmas!
 
Trash80toHP_Mini said:
Was thinking about this and might have come up with a more efficient method. Haven't got ready access to a
Plus ATM, but a combination of Radius' redirection baffle with a printed duct using a fan to pull more air in thru the side/front vents for cooling upgrades directly to over-pressure the case above should do nicely.

I looked into this many years back. IIRC the fan directed air at the transformer at the front.

edit: also, a more KISS compliant duct mounted to your fan pulling air in from lower in the case would prevent fan from pulling air in from the top vent would improve efficiency. That 1990 book leaves a bit to be desired in many instances if memory serves.
Click to expand...
I thought about mounting the fan on one of the transistor heatsinks, but would it even help?
1766886534242.png
 
Nope, gotta have most of the top plate of the chassis masked off with the fan set up to pull air up from the basement/MoBo thru the unmasked openings. Even the area around the A/B umbilical would be reduced to a minimum. The fan would be positioned so as to blow exactly where you've indicated, maybe angled a little toward the flyback?

I've pulled out the goodies and set them up to take a look.My FDD cage is riveted to the chassis, too bad. Drilling those rivets out is a non-reversible mod. If we're looking into that, printing a new cage with its raised base covering all but the umbilical "chute" would be the way to go. I'd have done that in sheet metal back then. I can prototype it in sheet metal now.

Performer doesn't add too much to the cooling budget. but some of the other Killy Klip toys do.

I'll have a look at it after the good hand comes free from the sling for the new year.;)
 
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