3D Printed NU_IO Mount for NeXTcube

Started by rbz, October 16, 2020, 06:42:14 PM

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rbz

I recently acquired a 030 NeXTcube and the first order of business was designing a NU_IO mount for the rear expansion bays.

PXL_20201017_010121267.jpgPXL_20201017_005701563.jpgPXL_20201017_014031335.jpg

I am still tweaking the design a bit to add some extra rigidity to the back plate and position of the board but it works perfectly so far.

I also designed a version that mounted a SCSI2SD v5.1 / v6 on the back plate as well but the problem is I don't have a SCSI cable long enough to reach so I pulled that out of the design.

After I get the back plate dimensions dialed in I will also release the STL for the mount and a blank plate so others can use if they ever want to make their own replacement blank plates or use it for their own designs.
Turbo Slab - N4000A, nonADB, SCSI2SD 5.1, 32m
Turbo Color Slab - VGA, ADB, NU_IO, SCSI2SD 5.1, 128m
Cube - 030 16m, 2x SGI Octane, Sun SPARCclassic

rbz

#1
Finalized the design for this, it is much more rigid than the initial design, and works great for adding a NU_IO to a NeXTcube.

The board snaps into the front of the rails with a locator nub for the front holes and then two M3 screws are used to secure the board to the rails. 3-5mm long should be fine (longer if your screws have washers on them).

The board/rail assembly is then mounted to the back plate with 3 M3 screws, 4-6mm long should be fine (longer if your screws have washers on them).

The rails should be printed so the height of the rail is vertical so no supports are required.

PXL_20201103_040925509.jpgPXL_20201103_041150379.jpgPXL_20201103_040620043.jpgPXL_20201103_040345328.jpgPXL_20201103_041129237.jpg
Turbo Slab - N4000A, nonADB, SCSI2SD 5.1, 32m
Turbo Color Slab - VGA, ADB, NU_IO, SCSI2SD 5.1, 128m
Cube - 030 16m, 2x SGI Octane, Sun SPARCclassic

rbz

Here is how it looks installed, also can see a 3D printed blank.

PXL_20201106_034344781.jpgPXL_20201106_043754586.jpg

Mount design is available for download on Thingiverse: https://www.thingiverse.com/thing:4644947

Blank slot cover design is also available on Thingiverse: https://www.thingiverse.com/thing:4644935

Share your prints! If you end up having issues with it printing let me know and I will see what I can tweak.
Turbo Slab - N4000A, nonADB, SCSI2SD 5.1, 32m
Turbo Color Slab - VGA, ADB, NU_IO, SCSI2SD 5.1, 128m
Cube - 030 16m, 2x SGI Octane, Sun SPARCclassic

Rob Blessin Black Hole

Hell RBZ: Excellent job! Those will come in handy. best regards Rob Blessin
Rob Blessin President computerpowwow ebay  [email protected] http://www.blackholeinc.com
303-741-9998 Serving the NeXT Community  since 2/9/93

eagle

Very nice!  I hadn't thought of doing that with my Cube.
My NeXTs:
NeXT Computer prototype (68030-25 x2, 68040-25)
Two NeXTstations (68040-25)
All mono