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ktkm

New 3D-printed parts (ktkm)

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A couple of weeks ago, I posted in the Trading Post, about wanting to buy new Nubus slot covers (and CD-Bezel kit), and @elbaroni gave me a clever suggestion to look for 3D-printable parts (https://hackaday.com/2019/01/19/unobtanium-bezels-finally-modeled-for-3d-printing/). But then one of my cover latches chattered into pieces, so I decided to do something about the missing or broken parts of my newly acquired Quadra 950 and work on my 3D-modeling skills at the same time.

 

First up, new cover latches. (Inspired by this project https://modelrail.otenko.com/apple/quadra-950-case-issues-and-modifications).

HthYDI8.jpg

Chattered epoxy riddled old latch.

 

TpWWkPo.jpg

Old and new 3D-printed latch.

 

Cjtimt8.jpg

New Latch in place.

 

pxVbxxE.jpg

Works great!

 

Here’s the .STL file if someone would like to give it a try. (No guarantees).

Quadra9X0_SideCoverLatch-815-6262-A.stl.zip

 

Coming up:

New Nubus slot covers for Quadra 9X0.

WhrK2wm.jpg

 

D1Rkwjv.png

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Fabulous, I need one for my 950. Better to print a pair. That way they'll match and we can save intact latches for future museum quality restorations. I saw something about replacement FDD bezels in that thread, has anyone seen those done yet?

 

What's the current 3D package of choice? Free, if limited and upgradeable?

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9 hours ago, cheesestraws said:

This is good stuff.

Thanks :-)

8 hours ago, Trash80toHP_Mini said:

I saw something about replacement FDD bezels in that thread, has anyone seen those done yet?

Haven’t seen one of those yet, but besides the Nubus slot cover, I’m working on a blank, and eventually a CD-bezel.

8 hours ago, Trash80toHP_Mini said:

What's the current 3D package of choice? Free, if limited and upgradeable?

Right now I’m working with a trial version SketchUp 2019.

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It's worth a look at Autodesk Fusion 360. The cloud-based storage and STL conversion can get annoying as it takes far too long compared to local storage and conversion. The website is a hot mess. Licensing is a little confusing but it is free for hobbyists. With all those negatives you might wonder why, but it can do anything and there are a lot of free tutorials and support if you are getting started.

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22 hours ago, aeberbach said:

It's worth a look at Autodesk Fusion 360. The cloud-based storage and STL conversion can get annoying as it takes far too long compared to local storage and conversion. The website is a hot mess. Licensing is a little confusing but it is free for hobbyists. With all those negatives you might wonder why, but it can do anything and there are a lot of free tutorials and support if you are getting started.

Thanks for tip @aeberbach I’ll definitely give it try :-) 

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10 hours ago, 360alaska said:

We have a thread already:

 

I also made a good bezel for the Q950.

Interesting thread, and long! Too bad, I missed it. Your thorough take on the Q950 blank bezel makes my efforts appear a little redundant. However, I’m still learning, and I think the right way to start is with the blocky Q950 characteristics. Besides the parts described in the thread, what are you working on now? Mabe, we can coordinate? Btw, I love the portable feet!

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There's nothing I'm working on 3d wise at the moment. What else are you interested in creating?

 

Edited by 360alaska

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8 hours ago, 360alaska said:

There's nothing I'm working on 3d wise at the moment. What else are you interested in creating?

Well, right now I’m working on the aforementioned Quadra 9X0 Nubus slot cover and bezel, a light pipe for II, IIx or IIfx, and a SCSI2SD 5.1 mount for a Mac Portable. Then I would like to find/make a programmer switch for a II, IIx or IIfx.

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I just got a Performa 6400/180 (my dream Mac back in 96) off of ebay. It actually shipped in a Tandy 1000 box! At any rate, it’s in really good shape except for two broken parts and a missing port cover.

 

The two front bezel snaps were broken, the ones you need to press at the bottom to lift the front bezel off, and the comm slot cover is missing.

 

I have no skills to create models but is there any chance that someone would be able to?

 

thanks!

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10 hours ago, Merk said:

 

I just got a Performa 6400/180 (my dream Mac back in 96) off of ebay. It actually shipped in a Tandy 1000 box! At any rate, it’s in really good shape except for two broken parts and a missing port cover.

 

The two front bezel snaps were broken, the ones you need to press at the bottom to lift the front bezel off, and the comm slot cover is missing.

 

I have no skills to create models but is there any chance that someone would be able to?

 

Congratulations on finding your dream machine! I don’t know exactly what part we’re talking about, but if I had one I think I would be able to make one. Until that day I’m not much of help I’m afraid.

Edited by ktkm

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On 9/9/2020 at 7:56 PM, ktkm said:

Then I would like to find/make a programmer switch for a II, IIx or IIfx.

Honestly this would be great. I’ve been on the lookout for one of these for a while and they never seem to come up. I don’t suppose anyone has one they could measure with the requisite degree of accuracy? Are they the same as SE ones except for the placement of the hooks/pins/shafts or whatever they’re called?

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Thanks for the Software recommendations, I need to segue into reversible case hacks from my longstanding affinity for non-reversible re-casings.

 

This brewing Mac Portable project looks daunting at first, but on closer examination the Subframe Assembly's a relatively simple set of modules in terms of its interface with the rest of the Portable'splastics. These would be chemically welded to printed framing members or bolted up to a metal inner chassis. Looked at piece by piece, it doesn't seem such a big deal.

 

Portable_Subframe_Assembly.thumb.JPG.7351351972db1f44f4259acf8fcdde14.JPG

 

The inner box structures for battery/drive would be eliminated and the skeleton set up for installation any number of things. A pair of good stereo speakers and the likes of a custom SE/30 board come immediately to mind given current and longer term development projects.

__________________________________

 

Replacement parts for the insides of cases may become a thing of the future. A new drive assembly for the IIcx-Q700 series set up for any number of SCSI based paraphernalia.

__________________________________

 

Entirely new internals should be in the works. Who really needs a Floppy? Imagine paperclipping the eject hole of a newly engineered FDD replacement. Such would spit the SD carrier section of the likes of SCSI2SD from the pie holes of either type of FDD.

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On 9/10/2020 at 4:39 AM, ktkm said:

Congratulations on finding your dream machine! I don’t know exactly what part we’re talking about, but if I had one I think I would be able to make one. Until that day I’m not much of help I’m afraid.

Played around with Tinkercad and designed a port cover for it. It could be resized to cover other slots as well. Like Apple's port covers, it comes in to parts, the actual plug and the plate that holds it in place.

 

image.png.4a0e721b2121f5c2c669c9ed92e6201e.png

Comm Slot Plate.stl

Comm Slot Plug.stl

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I'd suggest neither. A new thread can be built with an OP having links to every part discussion covered so far in both threads. That way new project discussions can be added and earlier discussions in the first thread can be reopened for further development with a link to the original discussion keeping context intact?

 

Advancing printer tech and bed sizes are making larger parts possible. With falling "desktop" 3D milling machine prices, a sister thread comes to mind. Combining the two technologies seems to be the next step to me. 3D printing is like casting Ford's V8 block with subtractive milling processes resulting in a precision part. Milling aluminum reinforcement or connective sections to be inserted at a specific point during printing might make assemblages of much larger or more robust parts practical?

 

Has anyone here experimented with dovetails, mortise and tenon or other classic wood working jointery technique that lends itself to chemically welding printed sub-assemblies into larger parts? I'd think that's been going on somewhere out there for quite some time?

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On 9/19/2020 at 10:41 AM, jessenator said:

Are we making this the de facto 3d printed parts thread, or still continuing the old one? Just curious so I don't hijack this one unnecessarily

I don’t know what’s best, but I certainly wouldn‘t mind. :-) 

23 hours ago, Trash80toHP_Mini said:

Has anyone here experimented with dovetails, mortise and tenon or other classic wood working jointery technique that lends itself to chemically welding printed sub-assemblies into larger parts? I'd think that's been going on somewhere out there for quite some time?

I have tried it with an end table that I was planning to make out of Valchromat. It uses both dovetails and mortises.

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1
On 9/14/2020 at 2:14 PM, elbaroni said:

Honestly this would be great. I’ve been on the lookout for one of these for a while and they never seem to come up. I don’t suppose anyone has one they could measure with the requisite degree of accuracy? Are they the same as SE ones except for the placement of the hooks/pins/shafts or whatever they’re called?

I’m not sure, but if someone has a couple of pictures, maybe I could combine them with the SE button to make II version.

On 9/19/2020 at 10:20 AM, Merk said:

Played around with Tinkercad and designed a port cover for it. It could be resized to cover other slots as well. Like Apple's port covers, it comes in to parts, the actual plug and the plate that holds it in place.

Nice! Is Tinkercad any good?

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