Articulating Stomach for InMoov
by bhouston, published
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This is a modification to InMoov's Top Stomach enabling it to lean forward and back and side to side.
Print 2 each of the following parts;
TS Side Pivot Sockets
TS Servo holder
TS Side PivBlk
TS Middle Plate
Print 1 each of all the rest.
Also print - TStoBackLeftV1, TStoBackRightV1 TStoFrontLeftV1,TStoFrontRightV1 from InMoov's website. If you are adapting the Top Stomach reuse these parts.
Update March 16/16 Also print, DiskUnderV1, DiskExternV2, DiskInternV3 so that the Logo plate can be attached.
Once all parts are printed, fit them and make sure they are moving freely before installing them. Grease all of the ball joints and pistons. The base does not have a race in it for ball bearings. I used a 1/4" teflon plate between this and the Mid Stomach, it works great - grease that too. This base will bolt on to the StomGearV2.
You need 2 intact - HS-805BB servos (drive servo) and 2 - HS 805 BB servos with the boards removed or disabled, the pots and the stop removed (slave servo). Connect the motor leads from the intact servo to the motor leads of the slave servo - make sure they move in opposite directions. Do this for both the Back servo's and the Side servo's.
Set the drive servo's to 90 degrees before installing.
3/14/2016 Update; The Base Right STL originally posted has been up dated. The Base left was uploaded twice.
06/12/2017 Update; I found that the ball and socket can separate if pulled on to far or lifted. There is now a new 2 part main socket that will hold better. Bolt it together after installing and insert the pin. I hot glued the pin in place.
20 to 75 %
I printed most of the parts with 2 shells, .2mm and 25% infill. The pistons were printed at 75 %. Some parts need supports, add them as needed.
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Articulating Stomach for InMoov by bhouston is licensed under the Creative Commons - Attribution license.
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