Marblevator, Pick and Place, Version 2.
Introduction: Marblevator, Pick and Place, Version 2.
"Marblevator, Pick and Place, Version 2" is my second "pick and place mechanism" based Marblevator. In this model, I've replaced the magnetic marble gripper used in my previous pick and place model with a hybrid PLA / TPU gripper which, so far, has operated over 72 hours with a marble drop!
As usual, I probably forgot a file or two or who knows what else, so if you have any questions, please do not hesitate to ask as I do make plenty of mistakes.
Designed using Autodesk Fusion 360, sliced using Cura 4.12.1, and 3D printed in PLA on Ultimaker S5s.
Supplies
Soldering iron and solder.
Thick cyanoacrylate glue.
Double sided tape.
Step 1: Parts.
I acquired the following parts:
* One dual AA cell switched battery pack.
* Two AA cells.
* One N20 120RPM 6VDC gear motor.
* Six rubber stick on pads.
Unless noted otherwise, I 3D printed the following parts at .15mm layer height, 20% infill:
* One "Arm 1.stl".
* One "Arm 2.stl".
* One "Arm 3.stl".
* One "Axle, Arm 2, Gear (1m, 32t).stl".
* One "Axle, Gear (1m, 16t).stl".
* One "Axle, Gear (1m, 32t).stl".
* One "Axle, Pivot.stl".
* Four "Axle, Robot.stl".
* One "Base.stl".
* Eleven "Bolt (M8 by 1.25 by 8mm).stl".
* One "Bolt, Arm 1.stl".
* One "Bushing, Arm 1.stl".
* Three "Foot, Base.stl".
* One "Gear (1m, 16t).stl".
* One "Gear (1m, 18t).stl".
* One "Gear (1m, 32t).stl".
* One "Gear, Motor (1m, 8t).stl".
* One "Gripper, Marble, PLA.stl".
* One "Gripper, Marble, TPU.stl".
* One "Guide, Arm 3.stl".
* One "Handle, Axle, Gear (1m, 16t).stl".
* One "Mount, Motor.stl".
* One "Pivot.stl".
* One "Plate, Gear and Mount, Motor.stl".
* One "Rack.stl".
* One "Retainer, Arm 2.stl".
* One "Robot, Arm, Left.stl".
* One "Robot, Arm, Right.stl".
* One "Robot, Head, Face.stl".
* One "Robot, Head, Head.stl".
* One "Robot, Legs.stl".
* One "Robot, Torso.stl".
* One "Track, End.stl", .06mm layer height.
* One "Track, Start.stl", .06mm layer height.
* One "Track.stl".
* One "Yoke.stl".
This is a high precision print and assembly model using at times very small parts and in very tight spaces. Prior to assembly, test fit and trim, file, sand, etc. 654
all parts as necessary for smooth movement of moving surfaces, and tight fit for non moving surfaces. Depending on you printer, your printer settings and the colors you chose, more or less trimming, filing and/or sanding may be required. Carefully file all edges that contacted the build plate to make absolutely certain that all build plate "ooze" is removed and that all edges are smooth. I used small jewelers files and plenty of patience to perform this step.
The model also uses threaded assembly thus an M8 by 1.25 tap and die will assist with thread cleaning if necessary.
Step 2: Motor Mount Assembly.
To assemble the motor mount, I performed the following steps:
* After placing the AA cells in the switched battery pack and turning the switch to off, I soldered the battery pack red wire the the motor "+" terminal and the battery pack black wire to the motor "-" terminal.
* Pressed "Gear, Motor (1m, 8t).stl" onto the motor shaft. 784