Summary

This is a very small addition to Magonegro's excellent Hairizer OpenSCAD script, which is used to create hairy models like the famous Hairy Lion by primoz.

See the Lion thing for more info on printing and, uh...hairdressing...the resulting models. This script takes an existing STL file as input and creates a hairier version of it.

The original version of the script just outputs everything as one STL which is great for single-material printing but suboptimal for dual extrusion. This version has 3 modules. You basically just pick which of the three lines at the top to uncomment.

• HairyModel() is the original behavior of outputting everything as one file.
• Hair() creates only the hair and sacrificial cylinder.
• HoleyModel() creates a version of the original model with holes punched in it for the hair to pass through.

For a single-filament print you can just leave the Modules section alone (HairyModel() is uncommented by default), edit the varibles in the settings section to your liking, render and export. It works just the same as the old script.

For a typical two-material print (e.g. 2 colors of PLA, or PETG with TPU hair):

1. Set variables in top section, including your starting STL filename.
2. Comment out the line for HairyModel() at the top and uncomment the one for Hair()
3. Render and export as STL
4. Comment Hair() and uncomment HolyModel()
5. Render and export as STL
6. Pull the two resulting STLs into the slicer together. You do not need to bring in the original STL you started with.

That's it. Make sure you check the slicer preview and it shows the bridging being printed. If you did it right you should also see the "hairs" pass through the holes the script made in the main model.

thanks to Magonegro, primoz, and many others

Have a Lot of Fun!