Motors - A Close Fit
- Brandon Johnson
- Mar 17, 2021
- 1 min read
In order to use the new KP35FM2-035 motors, their fit had to be checked to ensure that they would //fit into the existing footprint of our device as a complete redesign is undesirable and costly.
We knew that based on its dimensions, we could not place these larger motors side by side; the mounting solution that we came up with was to instead have two webs of motors where every other motor would alternate between the two webs. This allows us to fit all of the motors into the device without any redesigns of the pixels or the outer body of the device. These new webs are constrained by the same holes that were made in the base for the guide rods that the old lifting platform was constrained by.
The motor was modelled in SOLIDWORKS and placed onto a model of our base plate. Based on this model, it was determined that we could fit the motors into our device with a slight alteration to their endcaps to allow for a better clearance with the shafts and couplings of the motors on the lower level.

Further testing was carried out on the new motors using a 1/4" diameter, 20 threads per inch threaded rod and it was found that it could lift the pixel 1 inch in ~5 seconds.
AutoCAD drawings of the new webs were made and sent to be laser cut and the cut webs can be seen in the images below.
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