775167b4e9
Tactical commit while reworking the lower knuckle.
2025-09-22 12:01:37 +01:00
025575a488
Work (not yet completed) on the lower knuckles of the four bar linkage.
2025-09-20 17:49:49 +01:00
1befca0a60
First render with hull!
2025-09-17 10:46:53 +01:00
b95f639c30
Well, the nose is too long, and there are other problems with the hull,
...
but that's a visualisation that works.
2025-09-16 21:10:10 +01:00
3b90a2e4d5
Added a motor -- actually in the epicyclic file, which isn't right, but...
2025-09-15 15:57:57 +01:00
87a0c3431e
Subframe now switchable between aluminium and carbon versions; TODO carbon
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variant lacks its wheel leg.
2025-09-10 18:19:03 +01:00
5231893347
Tightened up components in the subframe; added a sketch showing how the
...
subframe might mount.
2025-09-07 11:05:25 +01:00
ad7c766b2a
Changed the illustration in the README to represent progress.
2025-09-07 08:40:49 +01:00
8a6a6be54f
This is tentative: I've moved the subframe back to the origin of the grid
...
in its own model, although I haven't yet lifted it so that its wheel sits on
the ground plane. I've rescaled it so that the wheel is the correct size.
I think each individual model should be build to the grid origin within its own
file, but that major components (subframe, fourbar) should be at the correct
vertical height for final assembly.
2025-09-07 08:27:31 +01:00
113546782f
I've written a hull which in itself isn't dreadful, but which has revealed
...
fragility in the way OpenSCAD handles name collisions. This makes mixing
libraries highly problematic. Needs thought.
2025-09-06 22:18:59 +01:00
d2399a464c
Added tricycle.scad.
2025-09-06 09:48:28 +01:00
4473ffa5df
Forgot the 'skew' library!
2025-09-06 08:04:41 +01:00
dc364443d7
Merge branch 'main' of ssh://git.journeyman.cc:4022/simon/tricycle-mechanical-design
2025-09-06 07:54:56 +01:00
012a888b85
Greatly improved pedal; both secondary chain sprockets in place.
2025-09-06 07:53:11 +01:00
13503768aa
Minor fix.
2025-09-05 21:45:28 +01:00
68b34d2f35
new chainset integrated into the subframe model.
2025-09-05 21:15:05 +01:00
64f75f21a7
Added the new model files!
2025-09-05 18:20:59 +01:00
386ecc79fb
Added chainset and pedals; but also, now understand where libraries go.
2025-09-05 18:18:22 +01:00
5d5649ab48
Added a model of an epicyclic.
2025-09-05 12:31:41 +01:00
4cdce5dc0a
A good enough for now, working, parameterised, four bar linkage. Pleased!
2025-09-04 22:09:22 +01:00
3f22298df1
Start made on the four-bar linkage. I need to remember trigonometry.
2025-09-04 17:27:21 +01:00
f863799729
And we have a model subframe which is really promising! OpenSCAD for the win!
2025-09-04 12:10:31 +01:00
bcea01f8b6
Created a git repository to track this.
2025-09-04 08:35:19 +01:00
