replacing back-screw standoffs
#7
(03-13-2020, 01:56 PM)MIchael Wrote: It's been 30 years since drafting class and if you have any problems reading it let me know.

https://www.dropbox.com/s/blmvy6or9r0hhe...1.jpg?dl=0
https://www.dropbox.com/s/80ld7mvhy32qzw...2.jpg?dl=0
https://www.dropbox.com/s/9n7sdm1ah3r727...1.jpg?dl=0
https://www.dropbox.com/s/6i7genzs6r5246...4.jpg?dl=0
https://www.dropbox.com/s/hscizbic0svesy...0.jpg?dl=0
https://www.dropbox.com/s/q009s69wjfk0vy...8.jpg?dl=0

I know, it's terrible but it should give you a good idea.

Ohhhh, if you tape it down, I don't think you'd need the little alignment tabs. Super Glue might work too.

Okay, finally managed to squeeze in some time to give this a try, and...it worked!

I've published the STL on thingiverse under a CC0 license here: https://www.thingiverse.com/thing:4226648

All I did was lay it out in OpenSCAD using the measurements you provided converted into millimeters. The OpenSCAD code is:


Code:
// Pinebook Pro back screw standoff
// Version: 1
// Date: 2020-03-16
// Author: pine64 forum user sundog, based on
//         measurements provided by pine64
//         forum user Michael
//
// License: CC0

// resolution settings for display in openscad
$fa = 1;
$fs = 0.4;

// back right corner standoff
difference() {
   cube([6.9342, 7.9756, 1.2700], center=true); // the main piece
   cylinder(h=1.27,d=2.286, center=true); // the hole in the main piece
}

translate([(6.934/2)+(1.1684/2),0,(1.27/2)])
   cube([1.1684, 2.0574, 2.1844], center=true); // centered tab

translate([0, (-7.9756/2)+(0.7620/2), (0.9144/2)])
   cube([1.9812, 0.7620, 1.27+ 0.9144], center=true); // side tab

// back left corner standoff
translate([10, 0, 0])
   difference() {
       cube([6.9342, 7.9756, 1.2700], center=true); // the main piece
       cylinder(h=1.27,d=2.286, center=true); // the hole in the main piece
   }

translate([10, 0, 0])
   translate([(6.934/2)+(1.1684/2),0,(1.27/2)])
       cube([1.1684, 2.0574, 2.1844], center=true); // centered tab

translate([10, 0, 0])
   translate([0, (7.9756/2)-(0.7620/2), (0.9144/2)])
       cube([1.9812, 0.7620, 1.27 + 0.9144], center=true); // other side tab

This is my first OpenSCAD model, so if anyone wants to clean it up and refactor it into something nicer, feel free

A couple pics:

https://toot-lab.reclaim.technology/20200316_171829.jpg - back left corner standoff installed
https://toot-lab.reclaim.technology/2020...37_HDR.jpg - back right corner standoff installed

Thanks again for your help, @MIchael - my Pinebook Pro is fixed and I couldn't have done it without you!
A64, SOPINE, Rock64, RockPro64, Pinebook1080p, Pinebook Pro, Pinephone, Pinewatch dev kit, Pinetab, Pinecil, Pinenut, Quartz64, Pinephone Pro, and PineNote (so far)


Messages In This Thread
replacing back-screw standoffs - by sundog - 03-12-2020, 07:47 PM
RE: replacing back-screw standoffs - by MIchael - 03-12-2020, 09:47 PM
RE: replacing back-screw standoffs - by sundog - 03-13-2020, 09:46 AM
RE: replacing back-screw standoffs - by MIchael - 03-13-2020, 12:20 PM
RE: replacing back-screw standoffs - by MIchael - 03-13-2020, 01:56 PM
RE: replacing back-screw standoffs - by sundog - 03-13-2020, 02:25 PM
RE: replacing back-screw standoffs - by sundog - 03-16-2020, 07:12 PM
RE: replacing back-screw standoffs - by MIchael - 03-16-2020, 07:56 PM

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