Maker rules of thumb
The starting numbers and shop tricks worth memorising. 98 rules, each credited to the maker it came from. Search, or pick a discipline.
3D Printing
12 rulesWall thicknesses, tolerances and design moves for FDM parts that print right the first time.
- 3D Modeling / DFM5
- Supports & Overhangs2
- Tolerances & Fit2
- Joining & Assembly1
- Printing & First Layer1
- Mechanisms & Hinges1
Laser Cutting & Engraving
8 rulesSettings, safety and alignment for diode and CO2 lasers, plus the box-making basics.
All Laser Cutting & Engraving →Get The Fuck Out
78 rulesShop and garage tricks so good you say it out loud. Zip ties, scribing, improvised tools and more.
- Zip Tie Tricks26
- Layout & Joinery10
- Tool Hacks & Improvised Tools10
- Garage & Automotive12
- Materials, Paint & Adhesives10
- Shop Setup, Storage & Rigging10
New here? Start with these
Slant 3DWall thickness
Start FDM walls at 2–3 extrusion widths — with a 0.4 mm nozzle, that’s about 0.8–1.2 mm.
Make or Break ShopSpeed / power test
For a new material, run a speed-vs-power test grid on a scrap of the real stock and read the best cell straight off the sheet.
Tuan CTLash a crossed joint
Run the tie diagonally across the X — over one member and under the other — then cinch, so the diagonal wrap clamps the crossing and stops it pivoting.


