Download and 3D print the set of models linked below. These settings worked well:
- PLA
- 0.2mm layer height
- 20% infill
- Support on for anim_pan.stl and anim_tilt.stl
I modeled these parts as a modified version of this pan tilt model to fit the specific needs of the gnome.
You can animate pretty much any figure you like. I went with these inexpensive, lightweight gnomes that were available for $5.99 at CVS during the winter holiday season.
They are officially called Merry Brite Light Up 10" Gnome and can still be tracked down on eBay until they make their return next holiday season to stores.
Remove the Base
A hobby knife was all it took to loosen up the hot glue holding the base/battery pack to the gnome.
Be careful using a hobby knife to avoid cutting oneself. Use of gloves, eye protection, and perhaps help is recommended.
Prep Tilt Servo
Prep the tilt servo by using a supplied horn to find the middle position.
Place the side bracket A piece over the servo as shown.
Then reseat the horn so it is positioned as shown. This will allow a full range of motion.
Screw the horn into place using the supplied horn screw and one small M2 screw through one of the horn holes into the bracket.
Connect Tilt Servo to Tilt Base
Use two M2.5 screws and nuts to connect the tilt servo to the tilt base as shown. The tilt base will snap into the bottom of the gnome.
Prep Pan Bracket
Screw the pan servo into the pan mount as shown by using the provided servo mounting screws.
Connect Pan Mount & Side Bracket A
Use two M2.5 screws to mount the side bracket A to the pan mount.
Side Bracket B Prep
Thread two M2.5 screws through the base holes of side bracket B.
The tilt pivot piece is screwed to the upper screw using an M2.5 screw and two nuts as shown. This should have a little slack so it can pivot freely.
Connect Pivot to Tilt Base
Screw the tilt servo mounting screws through the tilt base as shown and feed the pivot piece up through to connect. You can use a small bit of CA glue to fix it in place, although this isn't strictly necessary.
Base Magnets
There are plenty of ways to mount the rig, I decided to fasten four magnetic feet to the pan base using M3 hardware.
This allows the animatronic puppet to be placed on a ferrous metal surface (such as this rework station) and easily repositioned.
You can also plug in the servo extension cables in order to get more room between the animatronic puppet and the driver board.
You can dress up your gnome to hide the robot innards...
Page last edited January 20, 2025
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