Bubble machine

This is a machine for making soap bubbles. How it works (ru).

Hardware

If you need a simple solution (see on wiring diagram), here is the list of components:

Motor N20 with reducer 60 RPM
Motor driver TA6586 or any other one that fits the specifications.
Electrolytic capacitor 470mkF/16V
"Snail" fan RQU7530MS 5V (75х75х30). Accually any big snail fan with 5V.
Nuts M4 - 4qty. Long bolt or rod with thread M4.
Bolt + nut M3 - 3qty.

In the video I showed my complicated solution with microcontroller, LEDs, Hall sensor and etc. You don't have to implement it, just make the simple version.

STL-files

Bowl:

belt
belt nut top
bowl
bowl front wall // It is better to use a sheet of PET (0.5mm thinkness) instead of printing this part.

Box:

bottom
cover
leg
leg stand
ring bearing
ring nut
wall back
wall back punched
wall front
wall short
wall side

carousel:

bubbler ellipse
bubbler round 25
bubbler square
bubbler triangle
flywheel

Motor:

cable mount N20
cardan
coupler
lift pad N20
motor bag N20

Printing disclaimer

You must have a well calibrated printer including correct flow setting for the filament which you suppose to use. The printing tolerance is 0.15mm.

If you're not sure or didn't understand what I'm talking about - don't waste the time to make this thing. Or don't blame me after, that your printed parts don't fit together.

Also in some cases you'll need to use the tools (needle files for corners, drill bits for holes and etc.) to reach the best result from the printed model. Especially if use don't use Linear Advance or similar algorithm. You shouldn't expect that the model will be fine immediately from the printer. At least not always :)

Source

The source is here.

How to use my configurable models in OnShape

To get an access to the thing source you'll need an account in OnShape. It can be free, so made it for yourself.

Go to the document by the specified link.

Go to the tab "print setup". There should be a few configurable values in the upper-left corner. Change what you need. Wait while rendering finished then export parts from this tab (see in the bottom-left corner). They already oriented in the best printing position.