![]() ![]() Where does one procure the stepper motor and machine parts? One can of course get them seperately off the shelf, however we had an upcycled option! The step shield also houses the other components for transforming the voltage requirements as per our calibration of the TMC2208 according to the required current (this is in turn dependent on the stepper motor we have chosen to use). The TMC2208 sits on top of a DIY step shield, which in turn is the interface that connects the stepshield to the Arduino pins for the required direction and step pulses. The way we are going to connect the TMC2208 stepstick to the motor, is by building a 3 layered DIY interface. ![]() The motor current can be set on the StepStick itself, by measuring the voltage on the Vref pin (0…2.5V) and adjusting the voltage with the potentiometer. The TMC2208 is the StepStick we chose to use - an integrated motor driver solution for 3D-Printing, Cameras, Scanners and other automated equipment applications.The device has a step and direction interface and can be configured with digital pins. Links to some example schematics for DIY stepper motor drivers: Here is the video overview of our final “machine” from 2020 with moving gears - it covers the work done individually by the 4 of us.Īalto FabLab 2020 from Machine Building on Vimeo. ![]() build the mechanical parts and operate it manually design a machine that includes mechanism+actuation+automation document the group project and your individual contributionĪ machine needs to have a mechanism + actuation + automation - as a qualification for this assignment. And followed up by a 2021 “second cycle” version, with a new interface and an upgrade of the mechanism into a turning table for a rotating camera. A brief account of the group work - where I focused on the electronic milling and testing of the stepper shield for our belt riven lazer-woodcut machine in 2020. This intense assignment is sub divided into 2 parts. machine and mechanical design ¶ machine and mechanical design ¶ ![]()
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