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MacintoshClassicIIIColorTVp™ Hack

Osgeld

Banned
secondly since the tube is glass coated with metal it would act like a big arse heatsink, requiring you to heat up much more mass than just the plexi before it would all be even, and by then you might have deformities

 

Trash80toHP_Mini

NIGHT STALKER
Not a bad point, that's probably why all the vacuum forming rigs I've seen have a decent amount of separation between the plexi/heating element and the lower half of the frame & form/buck (CRT & mounting bracket with a plaster surround is what I've been thinking) most likely because a LOT of bucks are made of wood.

If anybody is planning to do case parts besides just the CPU Face & mounting ears, just remember that, IIRC, you need something like a 2.5 - 5 degree angle on all the buck's "vertical" surfaces for proper release of the formed plexi.

For releasing my CRT face, I'll be be building the mechanism to do vacuum, one of the two ways listed above. and then I plan to close off the vac port and use a built-in compressed air fitting to blow the freakin' plexi off of the CRT/Frame/Plaster < - > plexi interface! [}:)] ]'>

 

Trash80toHP_Mini

NIGHT STALKER
I'm not sure what the CC Crowd call it when you install a 6360/6500 MoBo in a CC, but I've managed the same thing in an actual Classic . . . that's gonna be Color! [:D] ]'>
My buddy eeun, one of the last remaining souls posting over on 'fritter, tells me this kind of CC Hack is called a "Takky" and, of course, I've come up with my own twist on that terminology with its roots found in the FWD Pickup Community . . .

. . . I think I'll title that portion of this hack the "Shortbed Takky!" :eek:)

 

aftermac

Well-known member
Hmm... I'm trying to remember the last time I saw someone quote themselves with a response... ;)

BTW, this project is pretty cool, you do some interesting work!

 

Trash80toHP_Mini

NIGHT STALKER
Hmm... I'm trying to remember the last time I saw someone quote themselves with a response... ;)
It was probably me! :lol: I HATE typing, explaining and therefore, repeating anything once said is better quoted than retyped! Sometimes context is half the message and quoting it is < half the work. [:D] ]'>

BTW, this project is pretty cool, you do some interesting work!
THX, comrade, it's nice to get any comments at all about some of the hacks I do sometimes, but good ones are fab! [;)] ]'>

 

Trash80toHP_Mini

NIGHT STALKER
UPDATE TIME AGAIN: i was lamenting the fact that I broke off one of the mounting "snaps" on the backplane cover I'd intended to use for the hack, but found gold while digging through the Magic Plastic Shoe Boxen for a replacement.

I found the (probably from a 6400) two slot backplane that came with my 6500 board! I'd forgotten that I ever had it! This will make me re-think a few of the graft points and actual connections, but it's already well on its way.

Whatever! Here are the new pics:

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Here's an overview of the new stuff and progress on the hack to this point.

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Here's one showing placement testing of the PSU. I did a Graphite Stick rubbing of my ATX PSU of choice at the store, copied the filthy thing and taped up a fairly good mock-up for working out its suitability. It's lookin' really good so far, first thing I'll do after buying it, will be to take it out of its case and either mount it to the existing standoffs (not too likely) for the ZFP HDD's PSU or else drill the suckers out and use create new standoffs with flat head bolts ( so the assembly will still slide in and out like a charm ) through the bottom of the internal ZFP chassis, right where I want 'em. [}:)] ]'>

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This shot shows the choices I'll be sorting thru to make the backplane look as stock as possible, make the top (Video Card) slot's Backplane Bracket and monitor connector(s) visible and accessible, You can see where I've already lopped off the bottom of the plastic cover in order to match the bottom edge of the Classic's shell. I'd like to retain a thin strip of the 6 mm plexi "spacer" , all the while making provision for some custom galvanized sheet metal work to induce proper airflow patterns as well as RFI Shielding between CPU and PSU.

Me like sheet metal challenges! :rambo: Muahahahahahahahahaaaaaaaaaaaaaaaaaaaaa! }:)

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This shot shows just how close a margin there is for doing the Compact Mac Shortbed Takky Hack!

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. . . and here's a closeup, notice the contorted bending necessary to retain the original equipment Medusa Cable Harness mounting slots. If I were to do this hack without the Cellar Expansion Bay, I'd make sure to shore up those heavily rework hardened slot arms so the 6360/6500/1 slot riser MoBo could be slid in-n-out with impunity. Taking the MoBo out of my hack will be a little more involved, but I'll have access to the brackets to brace them with the 'ole pinkies! [;)] ]'>

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Here's a shot of some of the new "Optical Bench" paraphernalia, I picked up a second, as is, OHP for $9 that works fine with the lamp in the socket and there's a spare to boot! So, of course I tore the head completely apart for experimentation, first with a flat etched glass rear projection setup, and later, using a sandblasted, vacuum formed plexi, ersatz CRT. I won't be doing that within the confines of the Mac shell, but I WILL set up said confines for the "Optical Bench" experimentation sessions.

Once I have the optical setup dialed in for flat surface rear projection, I'll do my vacuum forming experimentation and play around with achieving the perfect curvature of field of focus and pincushion distortion to achieve a rectangular, IN FOCUS, properly sized rear projection image . . .

. . . or I'll take the lazy way out and use flat etched glass plate rear projection with a clear plexi CRT face stand-in. }:)

Whatever gets the best results wins . . . I'm not ALL THAT MUCH of a purist! [:D] ]'>

 

Bunsen

Admin-Witchfinder-General
It's looking like a very neat job so far. No wonder your furniture turns out so well. :D

 

Trash80toHP_Mini

NIGHT STALKER
Thank you, Dr. B! If you like it now, you'll love it soon!

I'm about to start fabricating some the actual plexi parts for the hack . . .

. . . everything done so far has been prototyping/pattern work for the real parts! :ii:

Then the prototype parts will be moved to the Optical Bench for a second round of fitting the supports and brackets necessary to support/articulate the Projector and its Optical Addenda . . . and mounts for all the DVD boards as well as all the little 6500 boxes needed for the remote control, video out etc!

PLAYTIME!!!!!!!!!!!!!!!!! [:D] ]'>

BTW, I picked up the PSU, cable adapters-n-extensions for the ATX/6500 graft this evening! [;)] ]'>

 

Trash80toHP_Mini

NIGHT STALKER
Well, I had my first day off after seven straight, so I spent a good part of it playing with my toys and I finally broke through the Glass Ceiling/Floor and can now start noodling out the ATX PSU's positioning. Since I HATE splicing wires, I decided to do a custom PCB to adapt the wiring harness.

Anybody know of a cheap source for a Soldertail or Wire Wrap version of the Connectors for the PSU Lines on the 6360/6X00's MedusaMess?

. . . or even what they're called? :?:

glassceilingbottom.jpg


Here's the first run at breaking through the Glass Ceiling/FLOOR, you can see the Sonnettech Crescendo G3/466's Purple Heat Sink on the left and the USB card in the top/BOTTOM 2 PCI Slot Riser, with the Apple Tuner Card on the left and a 10/100 BT Card on the opposite side.

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Here's a shot from dead-on-level with the 6mm Plexi ZFP HDD Case <-> Classic Case Spacer. I'll need to fab a new one almost exactly like my fitting prorotype, but I'll extend the back edge as a curve that matches the Front Bezel Curvature of the Classic. I'll need to do this in order to cut enough of the inside edge away for clearing the PCI Card Cage. I want to keep the back edge of the ZFP HDD Case and the Classic Bucket tied together with a Plexi bar for stability and a maybe even for use as a removal handle . . .

. . . whatever, it should look really cool! }:)

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backplaneplastics.jpg.f6ee1afe5f67398f86c9ff6085b28bca.jpg


I cranked up my makeshift/hacked router table and rabbeted all the way around the edge of the bobbed 6X00 rear cover bezel. It's a perfect fit so far, all I've got to do is figure which parts to sculpt for as seamless an interface as possible. Note the two holes I drilled through from existing holes in the inner sheet metal. They'll be drilled and tapped to hold the mounting screws for the Plastic Cover Plate.

 

Trash80toHP_Mini

NIGHT STALKER
Update Time:

Here's a shot of the back of the unit with rev. 2 of the Plexi Interface Layer Prototype. Now the Case mates up with the Sub-Basement expansion bay while the second slot/card is hangin' down into the Sub-Basement.

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Here's a shot of the Second Slot/Card showing how much hangs into the Sub-Basement. You can see the front piece of the Plexi interface which will remain connected to the inner shell, front bezel, inner ZFP HDD Case shell and the "chin" of the bucket. If anyone wants to do the ShortBedTakkyHack™, you can see how it'd work out just fine using the Single Slot Riser.

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Here's a detail shot of the Sub-Basement: The Front Bezel, Inner Frame and a Plexi Support Frame for the inner shell will stay stationary with the inner top unit/front bezel while the outer shells slide off. If you look closely, you can see where I've scribed the cutoff arc on the Plexi "Rear Bumper" so it'll match the curvature of the Front Bezel and its curved section of the Plexi Interface Level.

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I'll probably put this hack to bed for a while, outdoor spring painting season is here and I'll have all the long, hot, HUMID NC summer to take this one back up again. It's time to finish off some MacFurniture!

 

Bunsen

Admin-Witchfinder-General
A small question if I may, before it all gets packed away for later: what's the maximum internal vertical clearance, between the bottom of the sub-basement and the top of the Classic case??

 

Trash80toHP_Mini

NIGHT STALKER
I don't know where you want me to measure inside the shed roof. :?:

I'll measure from the floor of the sub-basement to the floor level of the Classic and you can add that additional vertical space available to wherever you want to measure inside whatever Classic Mac, k?

BTW, I've also got a double height+ ZFP HDD Case! }:)

 

Trash80toHP_Mini

NIGHT STALKER
Sonnet turned the order around on their first day after the break in time for FedEx to pick it up Monday and then FedEx got it here a day early! I'll get this puppy up and running ASAP in the 6360 Chassis Testing Unit and then I'll start playing with the Radius 81/110's Crescendo NuBus and HPV Adapter Cards! [;)] ]'>

Playtime! :eek:)

 

Trash80toHP_Mini

NIGHT STALKER
Thanks, this hack's still on the back burner because of time constraints, but I've been collecting goodies on eBay for it, so far

. . . the near-unobtanium Sonnet Tempo Trio, so I'll have USB, FireWire AND real IDE/ATAPI on one card . . .

. . . a pair of Sonnet Crescendo G3/400/1M cards as backup . . .

. . . several PCI VidCard candidates including a pair of Apple Cards w/DVD Decoding . . .

. . . a slot loader Superdrive to go with one of them if I decide to change tactics (but 5.1 out trumps that combo)

. . . a new Memorex DVD Player for backup (in case I can't repair the original DVD Player's ribbon cable's ZIF connector)

as well as . . .

. . . a grlf who's more fun than hacking and want's me to simplify my toy collection (which I still haven't unpacked since the move) ::)

. . . a multicard IIsi Hack in progress that's a LOT more interesting/technically challenging ATM. :-/

. . . and a slew of other goodies from eBay to test, feedback and generally soak up my free time . . . }:)

. . . but this one is beginning to come together from a hardware standpoint, optical experimentation next, then plexi forming. ;)

 

Trash80toHP_Mini

NIGHT STALKER
I could use a hand with a cable conversion:

I got a DVD/CDRW Slot loader Superdrive that's got a cable that downsizes the drive's ATAPI connector (which looks like the IDE HDD connector on a Duo MoBo, IIRC) to a smaller version, likely for a MacBook.

I need to adapt this drive to an IDE/ATAPI -> USB bridge with the standard female cable header for a 3.5" HDD/Optical drive.

Any ideas, suggestions or even the name of the connector on the back of the superdrive? :?:

 
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