For tracking success/failure or simply share your experiment with your mini hyena I intend to create some form of communication channel. What do you guys think, which one suit us the best?:
- mailing list (google groups)
- facebook :)
- >insert your idea here<
Just put in the comments what you prefer!
This is a drive gear mainly for pushing filament in a 3D printer which works from a spool of filament, like reprap, makerbot, ultimaker and many others.
I've been in DIY 3D printing for a long time, I started around 2007 with a water pipe based machine, then it followed a Rapman and after a Reprap Mendel. Now I have an aluminium profile based machine which resembles a MendelMax printer.
Once the machine worked properly mechanically, I was struck by the lack of reliable hotend, so I've been developing hotends and related gears since then.
This drive gear is yet another step forward. Maybe it seems like a small step, but could turn out to be a big leap forward for the 3D printer enthusiasts!
Outline of manufacturing
All of the price at the left is basically calculated of manufacturing 100 mini hyenas in mind at costs. Once this campaign is over, the hyenas will be available on my webstore at a slightly higher price.
1. Hobbed bolts
All started with lack of reliable hobbed bolt manufacturing. I never could make the failure rate less then 20%.
2. Hyena, the new generation
To solve this issue, I started to work on bar with sharp teeth, where each tooth cut invidually.
I named it hyena because hyenas have the strongest jaw of all mammals.
3. New family members: Mini hyenas
This is what this campaign is about. To have a full range of drive gears:
We can produce the hobbing to fit 5mm or 8mm shafts.
Just put onto a motor's shaft of 5 or 8mm. Here is an example:
The drive gear will come with an M3 grubscrew. On the above photo there is an M3x3 grubscrew, but we will ship M3x4 because it looks better.
Its 1.5USD for everyone, everywhere.
(Once you get a confirmation email, its ready to ship, you are asked to send another 1.5USD in plus of your donation/contribution. If I started the campaign now, I would list the perks 13.5USD (with free shipping) instead 12USD (without shipping) to avoid confusion.)
You want to adjust your machine in advance? Or just curious? Here we go:
Compatible planetary stepper motors
Be warned, it may work or may not work (ie. untested). But these are our best bets:
- Kysan 42BYGH243-14 (8mm shaft)
- Phidgets Inc. 42BYGH40(M)-160-4A (8mm shaft)
- PG35L-D48 (5mm shaft)
- High torque nema17 stepper motor (may be not working!)
The new 8x5 mini hyena prototype is ready!
Other Ways You Can Help
- Just spread the word.