Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!
Pan Tilt Mechanism for 28BYJ-48 Motors
by zimirken, published
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Here is a pan tilt mechanism for 28BYJ-48 motors. It uses internal gearing. It is super duper easy to print.
The x axis gearing is 1:6.3
The y axis gearing is 1:4
This is a work in progress so expect more revisions as I work my way towards an ideal design for a heliostat.
Speaking of heliostats, included is a mounting bracket for a mirror or other reflector with M6 holes.
Note the pictures do not show the limit switches, as I am waiting for the M2.5 screws to arrive.
VERY IMPORTANT: I did not re-orient the stl files, so you will need to rotate them using whatever software you choose. I use cura, but all the parts can be rotated for no overhangs.
Also, if you are actually trying to move something with weight, I recommend that you overvolt the motors as they have very little torque at 5 volts. Just remember to turn them off after they move, otherwise they will overheat and melt the shaft slot in the gears.
You will need:
2x 28BYJ-48 motors
some M3 flathead screws (~10mm)
some M3 socket head screws (10-20mm)
some M3 nuts
1x 608 bearing
an M8 bolt and nut
2x 609 bearings
1/4" square rod
2x microswitches, 9.5mm spacing, 2.5mm holes
4x M2.5 screws for mounting the microswitches
grease (vaseline or lithium grease)
oh and 1 of all the parts
If you have trouble figuring out which small gear is which, the two gearsets have different helix angles so only one of the little gears will make a nice parallel mesh with a particular large gear.
Otherwise there are very few parts and should be pretty obvious to assemble.
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Pan Tilt Mechanism for 28BYJ-48 Motors by zimirken is licensed under the Creative Commons - Attribution - Share Alike license.
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