Electromagnet spools

I want to print a spool for an air core transformer that uses pulsed DC electricity for my printed stepper motor. I was able to design the spool right after I got the Rapman going but it took me a ridiculously long time to figure out how to get Skeinforge to let me print thin-walled items in HDPE.

This evening, I succeeded in using the Cool option in Skeinforge.

So I can get on with the project.  :-D

Now that my son has left for Southeast Asia till Spring or later, I will be able to set up a work table in what was his bedroom to build the electromagnets and set up the controller boards to run them and, eventually, the printed stepper.