Hey! This thing is still a Work in Progress.
Files, instructions, and other stuff might change!
Bead Chain Gear Drivetrain and Enclosure (fully parametric)
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Published on December 29, 2012
Description
I'm building an automatic window blind system to raise and lower window blinds (in response to user and sensor input).
The openscad code is fully parametric and designed to be both customized and modified, and easy to install.
This system generally should work for situations where a bead chain needs to be moved, but is fairly loose and prone to skipping.
The openscad code is fully parametric and designed to be both customized and modified, and easy to install.
This system generally should work for situations where a bead chain needs to be moved, but is fairly loose and prone to skipping.
Instructions
*** IN PROGRESS *** (need to build on wall mounts, which aren't shown here, but the components available for download are working perfectly!)
The scad code (see github link below) is fully parametric. It's also namespaced, so it should be fairly simple to manipulate, and do things like use different gears or change the bolt size.
Check out the latest openscad code on github:
github.com/adgaudio/3dPrinter/blob/master/bead_chain_drivetrain_system.scad
Other Parts:
1 x m8 30mm bolt + nut
6 m8 washers
1 x 608zz bearing (or other same sized bearing)
2 x m3 20mm bolts + nuts + washers
2 x m3 10mm bolts + nuts
1 x stepper motor (http://www.allelectronics.com/make-a-store/item/SMT-108/STEPPER-MOTOR-6-WIRE/1.html)
The scad code (see github link below) is fully parametric. It's also namespaced, so it should be fairly simple to manipulate, and do things like use different gears or change the bolt size.
Check out the latest openscad code on github:
github.com/adgaudio/3dPrinter/blob/master/bead_chain_drivetrain_system.scad
Other Parts:
1 x m8 30mm bolt + nut
6 m8 washers
1 x 608zz bearing (or other same sized bearing)
2 x m3 20mm bolts + nuts + washers
2 x m3 10mm bolts + nuts
1 x stepper motor (http://www.allelectronics.com/make-a-store/item/SMT-108/STEPPER-MOTOR-6-WIRE/1.html)
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SvenS
on
January 19, 2013
said:
Sweet, I was gonna do something similar, now I just need to tweak some parameters :D
Anonymous
on
January 15, 2013
said:
excellent.. I have been thinking over a design to move two blinds (one clear and one opaque) to give a window more insulation (long story, but it involves a cat door in the window) and your design is very helpful.. Looking forward to it evolve.
License
Bead Chain Gear Drivetrain and Enclosure (fully parametric) by adgaudio is licensed under the Creative Commons - GNU GPL license.
I'm glad you guys are interested! I'm currently fine tuning the parameters to sizes that fit the above parts, and the parts are coming out pretty well! Once I've put the pieces together, I'll probably add a section on electronics. This will also need a mount plate or some kind of bracket to fix it in place (to the wall in my case). I'll keep you updated with progress!
In the mean time, the latest version is on github. :)