Versatile Servo Bracket System
by bryanandaimee, published
The files are in inches, so you may need to scale them in your system. They were created in google sketchup, so if you want other file formats I can only save to formats supported by sketchup. Pictures will follow soon. The servos I have are HS-322HD, so that is what I know it fits. Hopefully it will fit other full size servos. If you have a similar size servo that doesn't work with these brackets please let me know what changes are needed to make it more universal. I have a 2 DOF quad nearly finished using these brackets so pictures of that will be forthcoming as well. I'll soon be adding a connector to enable 3 DOF arms/legs.
Update: Connectors added for 3 DOF limbs. Also I updated the brackets to be a little longer at the end. This will help prevent the ends splitting when screwing the bracket to the horn. The "Inside" brackets are a little narrower to be fitted inside the horn and the "outside" brackets are designed to attach outside the horn.
Here is the 2DOF Quad thingiverse.com/thing:6321, and here youtube.com/watch?v=Z9ne67bbpSQ is a youtube video of the 2DOF walker in action. The controller is a Jaluino with a servo shield I designed myself.
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Okay I think I've got it! In netfabb clicked repair, changed to action tab and then clicked "close all holes" and apply. Then exported part as STL and it asked to repair before exporting which I did.
Having trouble slicing/printing the inside short bracket. Opened in netfabb and changed to mm but still no dice.
http://www.thingiverse.com/thi... this one seems to slice okay though - Any ideas to what I'm doing wrong?
Yes, my original idea was to make a replacement back plate with axis built in. I may still do that but I'm not sure it could be made universal. I don't have more than one type to test and it doesn't seem that the bolt pattern would necessarily be exactly the same. So I went with the glued button instead. Plus I'm not sure I could get the tiny holes and tight tolerances needed for the back plate to work. I'm still pretty new at this stuff.
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Bolt brackets together with #6 bolts or something similar(M3?). Attach the bracket to the horn with a couple small screws. I haven't found a glue that will do the horn attachment to ABS very well. The bracket has a shallow inset on the inside wall on one side. This is meant to go on the horn side of the servo. On my servos it was needed for clearance.
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