24:T4cf,Made on request of my wife. It’s a laboratory equipment used to mix, blend, or agitate substances in a tube or vial by shaking them. Functions:

timer

motor speed control - rpm (quite accurate)

angle adjust by replacing Crankdeg part: 10deg, 15deg, and 20deg

save config: default time and rpm to mcu memory

Video how it's working: https://youtu.be/TyF6TsbwEOg Code and schematics: https://github.com/polihedron/TM1637_Timer_RPM-stepper_motor BOM:

4-Digit LED 0.56" TM1637 display

KY-040 rotary encoder

Arduino board: pro micro, and probably others small enough to fit inside

LM1117 Low-Dropout Linear Regulator module 5V

5.5mm x 2.5mm DC Female Chassis Power Socket

12V 2.5A DC Power Supply AC Adapter with 2.5 x 5.5mm Center (+) Positive Plug (for cameras, routers, household electronics..)

KCD1-104 4-PIN rocker switch 21x15mm

A4988 Stepper Motor Driver

Electrolytic capacitor 1000uF/25V

Stepper motor NEMA 17HS4023

Shock Absorber Dampener for Stepper Motor - 42mm

Joy!Crafts Hook & Loop fasteners round 15mm - 60pc

10x M3 screws

25:T7e1,'-040':79B '-104':134B '/polihedron/tm1637_timer_rpm-stepper_motor':70B '/tyf6tsbweog':64B '0.56':75B '1000uf/25v':146B '10deg':44B '10x':166B '12v':112B '15deg':45B '15mm':164B '17hs4023':150B '2.5':105B,113B,121B '20deg':47B '21x15mm':139B '3d':1A '4':72B,135B '42mm':157B '5.5':102B,123B '5v':101B '60pc':165B 'a':12B,23B,114B 'a4988':140B 'absorber':152B 'ac':118B 'accurate':37B 'adapter':119B 'adjust':39B 'agitate':20B 'and':46B,52B,66B,86B 'angle':38B 'arduino':82B 'blend':18B 'board':83B 'bom':71B 'by':27B,40B 'cameras':129B 'capacitor':145B 'center':125B 'chassis':109B 'code':65B 'config':49B 'control':34B 'crafts':159B 'crankdeg':42B 'dampener':153B 'dc':107B,115B 'default':50B 'digit':73B 'display':77B 'driver':143B 'dropout':97B 'electrolytic':144B 'electronics':132B 'encoder':81B

Found 14 3D-models for “3D shaker” across many websites

Shaker, Instrument

Salt cellar/container

Salt shaker, logo of Pass The SALT 2018

Drink mixer

Pepper Shaker

Multi Spray Can Shaker Holder

Day 13: Parametric Salt and Pepper Shaker

3D printer shaker / maraca. No gluing or beads required!

Sheep rocking chair miniature toy

Salt and Pepper Mill caps

Salt and Pepper Shaker Towers

A Mouse Rocker

3D Shaker, Nutating Mixer

Shaker Hood Style Hood Scoop