I want to do this...

[Trash80toHP_Mini]

I don't see any point in using a PCB connection between the SCSI Port on the backplane and and the one on the 605.You're just asking for crosstalk and noise the way you've drawn it. You want to keep that substandard 25 pin SCSI abomination of Apple's on a VERY short leash.

I was thinking along the lines of breaking the DB-25 on the adapter out to an IDC50 header and an internal ribbon cable with the MoBo IDC50 in the middle and the internal chain on the other end. That's what the adapted Classic board approach does.

 

[MinerAl]

Okey doke. I was thinking the DB25 male would make a nice solid physical connection between the boards, but the info flow is more important. I guess you could mount a dummy DBm in the right place for the physical support

 

[Trash80toHP_Mini]

If you want to have physical connections, how about mounting the MoBo and AdapterBo to the frame with standoffs from above?

 

[MinerAl]

I've been operating on the assumption that the board had to slide into the rails that the Classic II board used. I could certainly use the room under the boards' ceiling/CRT's floor there for mounting the HDD if the logic board rode lower in the case.

I guess the interface PCB wouldn't have to be exactly 2" deep if it isn't going to share the rails with the logic board. I think it might be more elegant with them sharing the rails, but elegance is often sacrificed for functionality

 

[MinerAl]

If the whole depth of the board isn't going to be taken up with the traces for SCSI, do you think it would be feasible to have an A/B push-button toggle for video in/out over on the right side that could be actuated by the programmer button on the side of the Classic II case?

 

[MinerAl]

Been messing with photoshop to try to decide where the name / apple should go.

The blank one would be reminiscent of the original Mac and TAM. Only model distinction would be on the backplate.



The Classic style one. Just added "Quadra" to the Classic's text.



The apple horizontally lining up with the drive slot...



The word Macintosh lining up with the drive slot (like on a 475/605) but name silk-screened on (like an older Mac).



The same with "Quadra Classic" in a smaller font size on a sticky badge (like a 475/605).



- - -

On a different topic, I've been playing with the internal components, and I can get everything to fit!

 

[MinerAl]

I was having a hard time telling what my textures were looking like with the different color putties I'd used, so I hit it with a light coat of primer to even out the colors. Now I can focus on filling the texture imperfections that are now much clearer.

 

[markyb86]

It's beautiful. :'(

 

[Macdrone]

Really good job there. Really. Wish I could do that, I have some fronts but no ability.

 

[MinerAl]

Yeah, well...

It's kind of a Cameron Diaz sort of thing at the moment. Deceptively attractive in soft focus or from a distance, pock-marked and wrinkly up close.

I need to do some reshaping of the back of the center of the opening. The top is way too arched. And there are some serious surface smoothing issues in there. I definitely think it can be done though.

I'm consulting the art teachers at school today to see if they have any tricks for the smoothing and reshaping that need to be done.

 

[Trash80toHP_Mini]

Fabulous! Reiterative wiping/sanding of Bondo or your putty in the imperfections would be my method of choice.

Looking at your work so far, I can't but think that any lettering would be gilding the lily. The pout is an adequate homage to the Quadra within . . .

. . . so adding the Rainbow logo of the 128k in that position would keep the design as clean as can be and a more effective homage to the 128k . . .

. . . 'shop it, you'll like it!

 

[MinerAl]

Been messing with photoshop to try to decide where the name / apple should go.
The blank one would be reminiscent of the original Mac and TAM. Only model distinction would be on the backplate.

...

Yup. That's definitely one of the contenders. Wish I hadn't already filled in the Apple divot. I might be able to rescue it if I decide to go that way. If I leave it blank I think I'll redo the backplate card with "Tenth-Anniversary Macintosh" instead of "Quadra Classic."

 

[Trash80toHP_Mini]

nOOOOO! mAKE A NEW DIVIT . . . MAybe even a rounded square opening for the insert of a real 128k logo patch (from a borken 128k front bezel) or from an A2 kinda bezel? It should be in the exact location as on the 128k. I especially like the notion of an inserted, flat square patch from a real 128k sunken into the ClassicCurvature. That'd be the perfect counterpoint to the added pout curvature of your hack . . .

. . . especially if it were to be parallel to the plane of the frame so the indentation is deeper on the right than the left. :approve:

p.s. i HATE cAPLOCK!!!!!!!!!!!!

p.p.s. I've been looking at the Classic II MoBo again and I think I've figured out how to add the ports you need to the FDD opening if I remove the DA-15. This hack will be a LOT more reliable than a homebrew PCB. Just let me know how long your grafted on cables need to be for an elegant installation. To answer your previous question about using the reset switches for A/B activation: It won't be any real problem at all using a TRENDnet A/B switch (small and very inexpensive) to do the dirty deed. It has two momentary switches to hotwire to the existing reset switches for I.O. choice. we can A/B switch your Sound I/O as well. If you can source the PS2 version, A/B switching ADB would be duck soup as well.

I can likely hotwire ADB onto the USB version's connectors. IIRC they're both 5v supply, so the switch would be ADB powered to boot!

@ the rest of the gang: anybody got an empty Classic Shell/Chassis you wanna swap for something from my trade goodies? }

 

[MinerAl]

Thanks a lot. Now I'm wandering around my classroom with a ruler like a crazed nun looking for knuckles to whack.

Measured to the edge of the inset:

The 128/512 round-rect inset Apple Logo was 25mm in from the left and 32mm up from the bottom of the chin.

The Plus inset Apple Logo was 25mm in and a whopping 55mm up.

The SE Apple was 20mm in and 10mm up.

The SE/30 Apple was 25mm in and 10mm up.

The Classic/CII Apple was 20mm in and 20mm up.

All the Apples were the same size, 15mm tall by 12mm wide,not taking into account the square round-rect around the 128's. The left side of that round-rect, and the left edge of the Apples on the Plus, SE, and Classic lined up perfectly with the vertical bezel edge of the monitor (where the monitor bezel's left angle meets the face's plane). The SE/30's Apple didn't line up horizontally with anything, as far as I can tell.

The Plus's Apple is centered vertically on the center-line of the FDD slot; the SE and SE/30's is centered vertically between the bottom of the chin and the bottom of the floppy gap. The 128/512's is set in-and-up ~14mm from the left and bottom bevels' edges (the bevel is more gradual on the bottom, so vertically longer). The Classic/CII's is just inset 2cm from the edges of the computer/chin.

All of that said... I can't decide if it should be a Quadra Classic with writing on the face, or a Tenth Anniversary Macintosh with just an apple.

 

[MinerAl]

Some pictures of interior layout.



The Q605 board will be just above the bottom of the case. I'll raise it a little for air flow. The stealth stubby-board will ride in the original Classic II LoBo's rails about 3/4" above.



I need to either hack the LC power-supply to have longer wires, or make myself a power extension cord.





You can barely tell that there's a 1G HDD riding bat-style above the LoBo, and under the FDD's floor there. Might change this layout, but it's pretty nice so far. Lots of room above it for the monitor's messy innards.

 

[Trash80toHP_Mini]

I need to play around with the spare Plus, a MicroQuadra MoBo, your Classic II MoBo and my TRENDnet A/B switch. From the looks of your pics, it seems to me like it'd be better to mount the MoBo upside down and as far forward as possible like my ShortBedTakky hack. That way you'd have more clearance for the cable adaptation runs.

 

[MinerAl]

What would the benefit of mounting it upside down be? It'll fit in the rails right side up, but the HDD will only fit if no board is in the rails under it. The HD also won't fit in the case under a board in the rails.

I can see maybe mounting it backwards so the 605's ports are facing forward. Then the much longer cables for video/audio/serial/ADB would only have to do a C shape 180 degree turn instead of a Z shaped over-under double 180.

A Plus will give you case bottom to LoBo celing/FDD floor clearance info, but the rails in it are much lower than a Classic's. So things will fit below a Classic's rails that will not fit under a Plus's, and things will fit above a Plus's that won't fit above a Classic's.

 

[Trash80toHP_Mini]

I'll play with the boards . . . not enough coffee to grok what you're saying.

Meanwhile if anyone sights something like this adapter, let Al or myself know about it so we can get it into the FDD port of the Classic alongside the much easier to source RJ-45 jack.

 

[markyb86]

I'll have to look, but I might have something like that. I'm scared to go in the dungeon at the moment as it's been raining quite good today.

 

[markyb86]

Couldn't find it in the dungeon, However since I have one of these from a mac mini,



You guys can have this from my daily driver. (If I need it in the future, my son has the same video card and only uses DVI or HDMI.)