Executive Desktop Toy 2

A second simple executive desk toy designed to get attention.

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 Ultimaker Cura 14.12.1, and 3D printed in PLA on Ultimaker S5s.

I acquired the following parts:

1. One bell: https://www.amazon.com/Service-Dinner-Counter-Trivia-Training/dp/B0DYDWRYZT

I 3D printed the following parts at .15mm layer height, 20% infill, and no supports:

1. One "Arms Axle.stl".
2. One "Arms.stl".
3. One "Axle, Lever.stl".
4. One "Base Tower.stl".
5. One "Base.stl".
6. One "Bell Mount Bolt.stl".
7. One "Bell Mount.stl".
8. Two "Bolt (M6 by 1 by 8).stl".
9. Five "Bolt (M8 by 1.25 by 4).stl".
10. Five "Bolt (M8 by 1.25 by 8).stl".
11. One "Bolt (M8 by 1.25 by 14).stl".
12. One "Bolt (M8 by 1.25 by 16).stl".
13. One "Bushing Left Armed.stl".
14. One "Bushing Left.stl".
15. One "Bushing Right.stl".
16. One "Guide.stl".
17. One "Head.stl".
18. One "Lever.stl".
19. One "Mallet.stl".
20. One "Robot Torso Left.stl".
21. One "Robot Torso Right.stl".
22. One "Shoulder.stl".
23. One "Shuttle.stl".
24. One "Spring.stl".

This mechanism is a medium precision print and assembly using at times very small precision 3D printed parts in confined spaces with highly precise alignment. Prior to assembly, I test fitted and trimmed, filed, drilled, sanded, etc. all parts as necessary for smooth movement of moving surfaces, and tight fit for non moving surfaces. Depending on your slicer, printer, printer settings and the colors you chose, more or less trimming, filing, drilling and/or sanding may be required to successfully recreate this model. I carefully filed all edges that contacted the build plate to make absolutely certain that all build plate "ooze" is removed and that all edges are smooth using small jewelers files and plenty of patience.

This mechanism also uses threaded assembly, so I used a tap and die set (M8 by 1.25, M6 by 1) as required for thread cleaning.

To assemble the bell tower, I performed the following steps:

1. Slid "Guide.stl" partway into "Bell Mount.stl".
2. Slid "Shuttle.stl" onto the guide.
3. Slid the guide up through the top of the bell mount then secured in place with "Bolt (M8 by 1.25 by 14).stl.
4. Positioned the bell over the bell mount and secured in place with "Bell Mount Bolt.stl".

To assemble the robot, I performed the following steps:

1. Positioned "Spring.stl" into "Base Tower.stl" and secured in place with "Bolt (M8 by 1.25 by 16).stl".
2. Pressed "Bushing Left Armed.stl" and "Bushing Left.stl" onto "Arms Axle.stl" leaving 4mm of the axle exposed outside the left bushing.
3. Pressed the axle assembly into the base tower assembly, through the spring then pressed "Bushing.stl" onto the remaining axle end.
4. Slid the bushing arm arm into the rear slot in "Robot Torso Left.stl" then slid the left bushing into the hole in the left torso.
5. Positioned "Robot Torso Right.stl" onto the assembly.
6. Attached "Head.stl" to "Shoulder.stl" using "Bolt (M8 by 1.25 by 4).stl".
7. Pressed the head and shoulder assembly onto the top of the robot assembly.
8. Glued "Mallet.stl" into "Arms.stl".
9. Carefully spread the arms and slid them over the arms axle.
10. Secured the arms to the arms axle using two "Bolt (M6 by 1 by 8).stl".

For final assembly, I performed the following steps:

1. Attached four "Bolt (M8 by 1.25 by 4).stl" to the "Base.stl" arms.
2. Attached the bell tower assembly to the base assembly using "Bolt (M8 by 1.25 by 8).stl".
3. Attached "Lever.stl" to the base assembly using "Bolt (M8 by 1.25 by 16).stl" making certain the lever pivoted with ease.
4. Attached the robot assembly to the base assembly using three "Bolt (M8 by 1.25 by 8).stl".

And that is how I 3D printed and assembled "Executive Desktop Toy 2".

I hope you enjoyed it!