mjparme
commented
4 years ago I have used involute-gears just fine before. What do you mean it is unusable?
Closed ftlpilot closed 4 years ago
mjparme
commented
4 years ago I have used involute-gears just fine before. What do you mean it is unusable?
ftlpilot
commented
4 years ago The inside is hollow and they can’t be rendered – look CAREFULLY at the pic I included, there is just an outer skin – THE CENTER IS MISSING, also this problem has been reported before.
Don’t rely on using them before – CHECK THEM NOW – THEY DON’T FUCKING WORK !!!!!!!!!!!!!
From: Michael Parmeley [mailto:notifications@github.com] Sent: Tuesday, 13 October 2020 11:38 To: revarbat/BOSL BOSL@noreply.github.com Cc: ftlpilot github@rce.com.au; Author author@noreply.github.com Subject: Re: [revarbat/BOSL] [BUG] - involute_gears are unusable (#73)
I have used involute-gears just fine before. What do you mean it is unusable?
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revarbat
commented
4 years ago Took a bit to figure this one out. gear2d() was using tooth profiles that had very slightly overlapping lines between consecutive teeth. When that path was converted to a polygon via polygon(), it looked fine, but internally had a bad geometry, so that linear_extrude() failed to extrude it correctly.
Fixed in 56756cc137281b4319dea5083262f22c7aa0b804
ftlpilot
commented
4 years ago Thankx – much appreciated, I’ll try and work in a mention in my next DIYODE article about gears, probably Dec or Jan issue.
From: Revar Desmera [mailto:notifications@github.com] Sent: Thursday, 15 October 2020 11:02 To: revarbat/BOSL BOSL@noreply.github.com Cc: ftlpilot github@rce.com.au; Author author@noreply.github.com Subject: Re: [revarbat/BOSL] [BUG] - involute_gears are unusable (#73)
Took a bit to figure this one out. gear2d() was using tooth profiles that had very slightly overlapping lines between consecutive teeth. When that path was converted to a polygon via polygon(), it looked fine, but internally had a bad geometry, so that linear_extrude() failed to extrude it correctly.
Fixed in https://github.com/revarbat/BOSL/commit/56756cc137281b4319dea5083262f22c7aa0b804 56756cc
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=========================
Thankx
Geoff Cohen
https://www.thingiverse.com/geoff_cohen/designs https://www.thingiverse.com/geoff_cohen/designs
https://diyodemag.com/projects/fixing_firmware_updating_firmware_on_the_arduino_bootloader_part_2 https://diyodemag.com/projects/fixing_firmware_updating_firmware_on_the_arduino_bootloader_part_2
https://diyodemag.com/education/exploring_3d_3d_printed_gears_part_1 https://diyodemag.com/education/exploring_3d_3d_printed_gears_part_1
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ftlpilot
commented
4 years ago Thanks again – gears work perfectly now – I’ll give your Library a mention in my next DIYODE article about Gears, in the next month or two.
FYI, the 1st Gears article is at https://diyodemag.com/education/exploring_3d_3d_printed_gears_part_1 https://diyodemag.com/education/exploring_3d_3d_printed_gears_part_1
From: Revar Desmera [mailto:notifications@github.com] Sent: Thursday, 15 October 2020 11:02 To: revarbat/BOSL BOSL@noreply.github.com Cc: ftlpilot github@rce.com.au; Author author@noreply.github.com Subject: Re: [revarbat/BOSL] [BUG] - involute_gears are unusable (#73)
Closed #73 https://github.com/revarbat/BOSL/issues/73 .
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revarbat
commented
4 years ago Honestly, for gears code I'd use the involute_gears.scad file in the BOSL2 library, not BOSL1. In BOSL2 I did a complete rewrite that renders faster and more accurately. Also it has proper support for spiral bevel gears and worm gears.
ftlpilot
commented
4 years ago Thankx – until you mentioned it I didn’t know there WAS a V2 – perhaps mentioning BOSL2 on https://www.openscad.org/libraries.html would be a good idea, at least when it’s out of alpha/beta testing
From: Revar Desmera [mailto:notifications@github.com] Sent: Sunday, 25 October 2020 14:37 To: revarbat/BOSL BOSL@noreply.github.com Cc: ftlpilot github@rce.com.au; Author author@noreply.github.com Subject: Re: [revarbat/BOSL] [BUG] - involute_gears are unusable (#73)
Honestly, for gears code I'd use the involute_gears.scad file in the BOSL2 library, not BOSL1. In BOSL2 I did a complete rewrite that renders faster and more accurately. Also it has proper support for spiral bevel gears and worm gears.
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ftlpilot
commented
4 years ago As you suggested, I tried the the involute_gears.scad file in the BOSL2 library – it’s pretty much unusable, firstly there was no include/use statement for attachments, when I inserted one in my code – this was the result
WARNING: Ignoring unknown function 'is_vector', in file ../../../../Users/Geoff/Documents/OpenSCAD/libraries/BOSL2/attachments.scad, line 220.
ERROR: Assertion 'is_vector(cp)' failed in file ../../../../Users/Geoff/Documents/OpenSCAD/libraries/BOSL2/attachments.scad, line 220
TRACE: called by 'attach_geom', in file ../../../../Users/Geoff/Documents/OpenSCAD/libraries/BOSL2/attachments.scad, line 910.
TRACE: called by 'attachable', in file ../../../../Users/Geoff/Documents/OpenSCAD/libraries/BOSL2/Involute_gears.scad, line 700.
TRACE: called by 'gear', in file Geoffs-Dual-Geared-Extruder-All-3D-printed-Mk21v.scad, line 1590.
TRACE: called by 'translate', in file Geoffs-Dual-Geared-Extruder-All-3D-printed-Mk21v.scad, line 1589.
TRACE: called by 'union', in file Geoffs-Dual-Geared-Extruder-All-3D-printed-Mk21v.scad, line 1569.
TRACE: called by 'difference', in file Geoffs-Dual-Geared-Extruder-All-3D-printed-Mk21v.scad, line 1568.
TRACE: called by 'Geoffs_double_helix', in file Geoffs-Dual-Geared-Extruder-All-3D-printed-Mk21v.scad, line 1538.
TRACE: called by 'rotate', in file Geoffs-Dual-Geared-Extruder-All-3D-printed-Mk21v.scad, line 1537.
TRACE: called by 'translate', in file Geoffs-Dual-Geared-Extruder-All-3D-printed-Mk21v.scad, line 1536.
TRACE: called by 'color', in file Geoffs-Dual-Geared-Extruder-All-3D-printed-Mk21v.scad, line 1535.
TRACE: called by 'union', in file Geoffs-Dual-Geared-Extruder-All-3D-printed-Mk21v.scad, line 1521.
TRACE: called by 'difference', in file Geoffs-Dual-Geared-Extruder-All-3D-printed-Mk21v.scad, line 1520.
From: Revar Desmera [mailto:notifications@github.com] Sent: Sunday, 25 October 2020 14:37 To: revarbat/BOSL BOSL@noreply.github.com Cc: ftlpilot github@rce.com.au; Author author@noreply.github.com Subject: Re: [revarbat/BOSL] [BUG] - involute_gears are unusable (#73)
Honestly, for gears code I'd use the involute_gears.scad file in the BOSL2 library, not BOSL1. In BOSL2 I did a complete rewrite that renders faster and more accurately. Also it has proper support for spiral bevel gears and worm gears.
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revarbat
commented
4 years ago In BOSL2, you want to do:
include <BOSL2/std.scad>
include <BOSL2/involute_gears.scad>Thankx again – missed the info about std.scad at the beginning of the file
From: Revar Desmera [mailto:notifications@github.com] Sent: Thursday, 19 November 2020 08:06 To: revarbat/BOSL BOSL@noreply.github.com Cc: ftlpilot github@rce.com.au; Author author@noreply.github.com Subject: Re: [revarbat/BOSL] [BUG] - involute_gears are unusable (#73)
In BOSl2, you want to do:
include <BOSL2/std.scad> include <BOSL2/involute_gears.scad>
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involute_gears. are unusable - the 2D shape is WRONG and doesn't extrude to 3D - this was supposedly fixed, but it' still there today - here's a screenshot of the example code.
This would be a really nice library - IF IT ACTUALLY WORKED !!!