While it’s possible to hack together LEGO solutions for strange angles and shapes, wouldn’t it be nice to have pre-built blocks to help build the regular polygons?
I’ve had my eye on the various LEGO compatible SCAD files and customizers, and decided to try one of them out. Using a simple 2×2 plate block as the foundation, I built a block with a 108° inner angle that can be used to form pentagons:
The first batch of pentagon angles didn’t fit terribly well with standard legos. Too loose when connected to the base of a Lego, too tight and unable to snap in when placed on top of a standard Lego. It’s possible the nub holes and through-hole on the plate were an issue, so I printed a few test pieces of different heights and features to see what worked best.
For the next set of blocks, I’ll try a different template block or SCAD/customizer to see if it has better dimensions and tolerance.
- Maker: patricknevindwyer]
- Source: LEGO Compatible Pentagonal Connector
- Original License: Creative Commons – Attribution – Share Alike
- Model: lego_pentagon_108_angle.stl x5
- GCode: –
- Material: Inland Gray ABS 1.75mm
- Print Date: 2017/10/11
- Print Time: 2 hours 15 minutes
- Estimated Print Time: 1 hour 55 minutes
- Estimated Filament: 3.72 meters
- Slicer: Slic3r PE 1.37.1
- Slice Settings:
- 0.10mm layers
- 30% infill cubic
- 5mm brim
- Printer: Prusa i3 mk2