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ZipMacPLUS™

ZipMacPLUS™ Hardware 39 posts Dec 9, 2012 — Dec 14, 2012
I'm stuck home with bronchitis again . . . :p

. . . and I was bored . . . ::) . . . so . . . }:)

ZipPlus_04_2p.jpg

. . . it's difficult to imagine that the much uglier of the two Plus front bezels wound up looking so much better than the good one.

Other than the degradations inflicted upon the floppy slot with files, knives and other implements of torture, it cleaned up pretty well!

ZipPlus_03_2p.jpg

If you look very closely, you can see the remains of the filth and black smudge marks that camouflaged the scratches on the front fairly well. But that was why this one felt the bite of just about everything short of the dreaded Ryoba.

Some elbow grease, a nail brush and toothpaste did wonders for this thing!

ZipPlus_06_02.jpg

I should have taken the FDD out of the other Plus and put black cardboard behind it for comparison, but I guess it's fair this way. The Zip will have a black flip up door when installation time rolls around.

ZipPlus_05_2p.jpg

The work on the opening isn't really finished, but it was a good stopping point for documentation. I'll probably make the ramp to the left of the larger slot more closely match the length/slope of the original . . . maybe.

I'll be fabricating a new FDD enclosure to correct for the leftward offset, so it'll probably be another hack in and of itself.

It will likely involve . . .

. . . The TwiggyBoxGambit: Compact Convection Correction . . .

Note the SCuSI lookin' chassis on this Plus, that's the unmodified ZipMacPLUS™ bezel hanging off the front!

TwiggyBox_01_2P.jpg

. . . its much simplified Garde approach . .

Blanks_positioned_2p.jpg

. . . clear acrylic plastic fabrication . . .

. . . and the guts of an external SCSI Zip Drive. :lol: MUAHAHAHAHAHAAAAAAAAAAAAAAAAA!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

ZipPlus_04_2p.jpg

ZipPlus_03_2p.jpg

ZipPlus_06_02.jpg

ZipPlus_05_2p.jpg

Blanks_positioned_2p.jpg

now your ready for internal scsi cable hack :)

Definitley a fan over here! :)

Are you running the zip off of the floppy connection somehow, or is this gonna be in lieu of the project uniserver is mentioning?

THX, it's definitely the Internal SCSI Hack, that's where I first mentioned the possibility of doing a ZipSlotHack.

I'll be using the custom PCB approach if I can find a source for a pin compatible controller. A successful chip-kwik'n of the controller off a Plus board with the pressurized hot air from my plastic welder tip will save me some money. Just doing my first bit of rework with a that down and dirtiest hot air reflow kluges will prove interesting all on its own! [;)] ]'>

I've got several adapter PCBs to clean up so I can have a photo-silk-screen made up or test my luck with photo-resist for home etching for the first time. I really like the silk screened enamel ink resist method. I can screen any number of blanks or gang dupes up any which way for tweaking the production count . . .

. . . it's the hand drill pressing of the holes that's the biggest PITA. :p

I'm following that thread as well because if you succeed with an add-on for internal SCSI I want to be one of if not the first person to buy a kit for the plus. :D

I also do remember you mentioning to just file the floppy hole wider for the zip now. I think, in the SE FDHD thats on its way here, if the HDD is shot, I will pop out the cover plate and throw a zip in there.

:lol: I might have finally turned the corner on keeping this SCSI Hack simple, but testable, reliable and reparable . . .

KISSmockup_2p.jpg

. . . but I'll probably take mine with a side of PCB anyway . . . ::)

Looks good!

You're going to use an external Zip drive in there? That'll be something to see :)

Hi,

There are internal SCSI ZIP drives which would be much easier to work with.

They are somewhat harder to find, though.

c

How do you keep the disk from ejecting? I may have missed that earlier. Sorry if I'm beating a dead horse.

Yep, I'm going to give it a try, I'd need to offset the FDD Sled to use an internal drive anyway . . . so over the top it goes!

First thing I need to do is find my USB Zip that's made in translucent light blue. That'll let me peer inside to see what's going on in there. It's the same form factor as the standard external SCSI Zip, using the same power supply, just a different controller board (assumption) so I can see all the support points. I'm thinking in terms of rebuilding it in a clear plexi shell with the momentary switch for the ejector button relocated to behind the paper clip hole.

I'll need to use the A/B side from the simplified TwiggyBoxGambit™ as a heat shield. I'll use both if clearances allow on the other side. It looks, from a cursory trial with a standard Blue Zip, that removng the feets and shaving a wedge off that side of the case is all that's really needed . . .

. . . but why stop there? :lol:

A macdrone: I don't need to keep it from ejecting, there will be a Hard Drive under the Zip. I've got a several low capacity Apple ROM SCSI Drives at my disposal, the Zip is mostly for SneakerNet in my application.

I've got extra MoBo<->A/B cables available, so there will be an aux. PSU inside the case with an adapter on the cable for easy plug-n-play of the Mobo, a fan for cooling and what not.

Silent operation is to be avoided at every opportunity, up to and including the possible installation of a 15K SCA HDD! [:o)] ]'>

@ CC333: Yep, I've got a total of one at my disposal, ATM. I tried to swap an SE NIC for a pair, but that didn't pan out . . . and externals are relatively easy to come by.

External Zips come apart really (almost too) easily. There are slots in the sides (two on one side, one on the other) that have to have a thin flat-head screw driver pressed in to release spring clips. The front kind of tips forward to let the top off. Once the top is off, however, a lot of the parts are held in by gravity, so don't flip it over to look at it from a different angle with the top off!

The only SCSI out is via the 25-pin D connectors (no 50 pin ribbon in there), so you'll have to do some cable hacking.

It really might be easier to leave the case intact and position it behind your new slot with a (much nicer than) erector set arrangement.

Yah, getting them apart is not that hard. I got a pair of the external cases from iomega before the Zip was released. I had a notion for a product that they fancied, didn't work out with the external though.

I just wanna look it over from the outside, from every angle, like the engineers did with the clear prototype cases back in the day. The main problems, IIRC, will be fabbing some support points and figuring out what to do with a couple of springs and what not. I'm already removing the momentary switch from the PCB and wiring in another behind the paperclip hole.

I guess it's a question of whether it's uglier to:

replace both of the SMT DB-25 connectors with the 50 pin ribbon cable heading in from the IDE Header/SCSI Controller PCB hack

necking the cable down to a DB-25 IDC Ribbon Cable Connector

or the over the top third option:

make an opposing twin PCB to the convert the standard 50 pin header/connector to a vertical soldertail DB-25M.

HEH!! [}:)] ]'>

p.s. I should post a pic of the first(?) AIO correct, Mac prototype, me likes plexi block constructor set playtime! :D

Since I'm notoriously bad at explaining stuff related to my hacks in .TXT:

I popped the lid of the intended victim and took some piccies . . .

ZipPlus_07_2p.jpg

plenty of room for the HDD below the Zip Drive, I had to use a 1.125" Paperback as the support . . . the HDD was too short.

ZipPlus_10_2p.jpg

Rough fitting wasn't rough at all, it looks like the PCB may fit inside the Chassis with the opening as is . . .

. . . may need to widen it a scootch to make room for a thin plexi side panel so the HDD remains visible . . .

obligatory oblique views:

ZipPlus_09_2p.jpg

ZipPlus_08_2p.jpg

. . . looks good from where I stand! [:)] ]'>

Is it so far back because the Mac's chassis is in the way, or for illustrative purposes?

I'd just mount it upside down and call it good :)

Yep the case plastics are hanging over the edge of the Chassis in between the vertical members on that side. That's why it needed to be mounted back there for the pics.

Upside down? No can do, I need the pretty, moving parts pointing up or it's not up to spec for one of my hacks . . .

. . . besides, I have to remove the plastic front bezel of the chassis to get it close enough to the slot anyway. [;)] ]'>

On the gripping hand, when it comes to fitting MoBos, I'll whack those puppies into a compact upside in a heartbeat any day! :lol:

Using an external ZIP? I would have figured you'd use a standard, 50-pin internal SCSI ZIP.

:-D I think he is working on sourcing one :)
Negatory, good buddy! ;D

Somebody gotsta l'arn the younger new chums up on the way us crazy oldtimers sufferers did functional improvement hacks way back in the day . . .

. . . just to save a bit-o-da feeelthy lucre! :approve:

< . . . that was needed for tools other than the Macs and for real life expenses, like bringing up the rugger . . . >

Using an external ZIP? I would have figured you'd use a standard, 50-pin internal SCSI ZIP.
Nope, that's what everyone thinks at first glance, because they haven't fully digested the info posted about the SlotHack quite yet. [;)] ]'>

Unlike Al's most elegant CC ZipHack, all the plastic is removed from the left side of the FDD slot. That keeps the right side's stock look unmolested and I don't give a rodent's rump about the left side winding up the wrong depth, cuz I'm fakin' that up during the file sculpturing at the new height after the left side's setback has disappeared. Filing away that setback on either side of the CC's floppy slot woulda' meant having a gap-toothed doofus lookin' CC front bezel.

< . . . not that a CC with impeccable choppers doesn't look doofy enough on its ownsome! :lol: )

I'd have to realign an internal Zip drive anyway, the stock sled/tower cannot just be be shifted backward and towards the A/B. That would cover up a quite a bit too much of the primary convection pathway over the hottest parts on the A/B.

So, uncharacteristically (cough) I'm taking this one over the top . . .

. . . I'm gonna go shoot comparison piccies, cuz my 'splainin's probably no as clear as it needs to be . . .

. . . besides, I've always wanted one of those see-through window display cases! }:)

Yep, "Destiny's Road" isn't one of my favorite Niven novels either. That's probably a good use for it... Now if it was "A World Out of Time" I'd be screaming and yelling about now, "Don't lock the Cattails in the Compact!"

Thanks bunches, trag, that one's on my to be read pile! Ya think maybe I can get my money back from Border's bankruptcy filing? ::)

I think Protector is my Niven fave.

I would have used the replacement copy of Lucifer's Hammer next to it, but it was too skinny and the original with the rubber banding is too thick . . . :-/

IMHO, the madman of Chaos Manor is, by a fer' piece, the better half . . .

Dr. Dan is my all time science fictional hero, slightly above Lazarus Long and Dominick Flandry . . . though . . . Lady Harrington now! =8-b . . . . . . . .

edit: because of intolerable levels of curiosity, numerous productive bouts with hypo-mania and the ability to maintain a "brain full of incredible amounts of disjointed and useless information" according to my best friend ever and much loved ex, I have no reason to fear the government's taking away of my right to buy/bear firearms! Dr. Dan and Abbie Hoffman were inspiration enough . . . along with growing up on a farm where stumps didn't stand a chance against the Barn's ChemLab! [;)] ]'>

. . . speaking of the farm. :I

< swerves back on topic >

Meanwhile, back on the Pickle Plantation:

ZipPlus_12_01.jpg

ZipPlus_11_2p.jpg

I couldn't get the alignment to work out perfectly w/o digging out a tripod or relocating a very neatly categorized and considerably tall pile of Hackin'Crud off the copystand to show it clearly enough, soooo . . .

In my impenetrable .TXT:

A Zip is about 7mm wider than than a Floppy. So 3.5mm is required for a bare minimum of side to side offset. Add a bit more wiggle room than that, yielding enough slop factor for an unauthorized field modification placing a larger diameter gun tube on this particular data fighting vehicle's firing port to function and you'll find you're choking the A/B's carb by a bit more than 4mm without swappin' out that hardened steel gun mantlet.

So, no joy on the "easy" internal SCSI Drive install route . . . so my way is the high (over the top) way! :approve:

No CRT grinding today . . . but the Dozuki ate some blue plastic! }:)

. . . one side appears to be missing from the exExternal Zip Drive . . .

ZipPlus_13_2p.jpg

. . . and the disk just fits side to side now, but a bit-o-plexi thickness and a tad more needs to come off the other side of the FDD slot . . .

ZipPlus_14_2p.jpg

. . . a small bite will need to be taken out of the chassis right about here to get the Zip Drive fully into battery . . .

ZipPlus_16_2p.jpg

. . . and here's another one for my Sci-Fi brother in arms . . .

ZipPlus_15_2p.jpg

. . . even if it is a tad shy in the thickness department in its un(re)read state.

I think I'll go to sleep now. ;D

Oh man, once you get your chassis how it needs to be to fit correct, before you button this up, you should paint the metal the same color as that zip disk. :approve:

Untitled-1.jpg

::)

< clicks link >

8-o GAAAAAAAAAAHHHHH!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! xx(

< . . . fumbling . . . blindly attempts to hit Ctrl/W while unsuccessfully rubbing away hella' green afterimage burned into his retinas with right hand >

LOL.. come on, it's period appropriate! I kid I kid,

sorry for any long term damage caused by Adobe Photoshop "They made me do it!" :approve:

No harm, no foul . . . the camera flash seems to have evened everything out on the ol' retinas . . .

The Hacksaw, Bulldog AvSnips and File work looks like it's finished . . .

ZipPlus_18_2p.jpg

. . . but the drive still won't quite slip into battery . . .

. . . I could do more of the same to deepen the slot . . .

ZipPlus_19_2p.jpg

. . . but the Ryoba smells blue plastic meat underneath the Logic Board . . .

. . . definitely don't want a hungry Ryoba roaming the workbench! :O

Check out the blue plastic arm holding the ejection spring where it coincides with the left (top in the pic) side of the FDD top alignment guide. Those two arms need to be a spring's thickness away from the surface of the bezel . . . unless I sculpt away a tad from the thickness of the bezel when they get there.

Sorry, it's tough to see in the pics, but about a half and inch of the Zip's Exoskeleton needs to be removed . . .

. . . but the Ryoba's gonna nip a tad more than that outta' the Zip's belly. }:)

< . . . wonders about those garish green floaters on the LCD????? >

Alot, but Trash, can you start posting in "I-Can-Haz-Cheezburger" speak? It makes for a more interesting and entertaining on your posts, imho. :o) :lol: :D

73s de Phreakout. :rambo:

Cheeboogie, cheebogie, cheeeps . . . no Coke! Pesi! ;D

The Ryoba was still napping from its last meal, so I left it undisturbed . . .

ZipPlus_20_2p.jpg

The 45 year old X-Acto Razor Saw filled in while the Dozuki marveled at the abilities of its much older stable mate.

Depending upon the height of any given Wood Pulp ePaperback, intermittent faults occurred . . .

. . . interference between the bottom FDD guide and the breaker bow of the Zip Drive became a PITA . . .

file.php


. . . so several of its teeth were carefully removed . . . at first . . .

ZipPlus_21_2p.jpg

. . . while the beast was field stripped, I documented the need for a sheet metal fix, and managed to get the BullDog AvSnips in the shot as well . . .

ZipPlus_23_2p.jpg

. . . so pair of silver pop-rivets will do nicely here . . .

. . . and did the front side view of the conveniently hacksaw friendly 5.25" Twiggy Drive opening, retained right up to the Mac Plus!

ZipPlus_22_2p.jpg

. . . trial fittings proved the earlier tooth extraction strategy somewhat wanting . . .

TBDocumented

. . . so a more aggressive teeth breaking session ensued . . .

TBDocumented

. . . to be continued.

_____________________ spoiler alert! ________________________

all the trial and error paid off handsomely, the zip is calling "honey, I'm hooome!" and it's time to document its function if I can just fine the right book to put under there!

 

Meanwhile, planning (idly mulling over available options whilst sipping Thera-Flu) the support structure continues . . .

. . . as well as noodling out the Power/Cooling budget for Zip and screaming 15k SCA HDD . . .

:sleepy:

wow that Green color really makes it POP!

Now all you need to do is saw a 4" hole in the rear, get your self a chrome plated tip, get a bright red type "R" sticker for the side,

sit there and go BUzzzzzzzzzzzzzz OWWWWWwwwwwwww BUzzzzzzz Owwwwwww, while using it, maybe get some NOZ squirters for the top :)

A must read to appreciate what i have just said :) ------>

http://pcharles23.blogspot.com/search?q=honda+civic

If you get one of those clear acrylic rods used for adjusting the angle of mini blinds, you can use it to direct the activity LED's light somewhere else, maybe coming out from under the chin? Just a thought. (Unless I missed somewhere that its going to go through the paperclip hole or something?)

Awesome work though, carry on. :approve:

Already ahead of you on that one, plexi light tubes for all three, maybe four power/activity lights for the Zip & HDD.

All will be little rectangular blocks lined up side by side at the back of the bottom of the finger hole about 3mm high so their tops are just shy of being flush with the bottom of the slot or just even with the filed out existing plastic.

Dunno if it'll pan out out, but that's the plan.

Thanks for the encouragement, it's nice to see somebody thinking ahead in here. [;)] ]'>

I've got a teaser for you: Why would someone consider mounting a CD-ROM sled upside down on the floor of a Plus? ;D

mp.ls