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This is mostly complete, enough for me to build a bench from it.

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Simon Brooke 2026-05-28 11:48:53 +01:00
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# roubo
OpenSCAD model of a 'roubo' style carpentry bench.
[OpenSCAD](https://openscad.org/) model of a 'roubo' style carpentry bench.
![The bench](roubo.png)
The 'roubo' bench is a style of woodworking bench constructed primarily from
softwood and without metal fastenings, traditional in parts of east Asia. The
internally threaded blocks for the two vices are clearly turned from close-
grained hardwood; I suspect the moving block for the end vice, and
the treenails and locking wedges, should also be hardwood.
All dimensions in this model are in millimetres.
If reasonable sizes for top planks include 150mm (which is
what we have) then the maximum possible diameter of a vice
screw is 25mm; which means we may as well use commercial
metal threaded rod. A wooden screw that small would be
finicky to make and pretty fragile.
if you can get 200x75mm for the top planks then a turned wooden screw
may become more practical, but I have not parameterised the screw
diameter
This file is partially constructed from analysis of [this video](https://www.youtube.com/watch?v=XhAEbklxJME).
Key points:
1. 1:55-3:08 leg top joint detail
2. 3:10-7:50 top plank end tenon detail
3. 7:50-9:20 cutting end vice slot (I don't think the cutting of the internal slot for the end vice moving block is ever shown)
4. 9:30-10:14 dowels to assemble top planks
5. 10:24-13:25 detail of end vice assembly
6. 10:24-13-09 top end cap assembly
7. 13:30-14:20 cutting end tenons of leg cross brace
8. 14:20-16:40; 19:30-20:00 front vice assembly
9. 16:42-17:08 assembling leg cross brace
10. 17:20-18:05 leg longitudinal brace
11. 18:20-18:55 assembling leg assembly to top assembly
This model is parameterised and is resizeable within limits, but if you vary any dimenstion by more than about 25% you're probably going to need to do some rework.
Colours are for clarity only.
## Errata/todo:
1. locking wedges and treenails are generally not present in this
drawing;
2. mortices and holes for wedges and treenails are not all present;
3. two of the tapered mortices for the longitudinal braces are the
wrong way round;
5. while all tenons are modelled, not all mortices are; where a tenon
intersects an apparently solid piece, assume there is a mortice!
## Licence
[Creative Commons Attribution/Non-commercial/Share Alike](https://creativecommons.org/licenses/by-nc-sa/4.0/deed.en)