# Design Sprint II - "Motorin"

**URL:** <https://forums.kinograph.cc/t/design-sprint-ii-motorin/1744>\
**Category:** Uncategorized\
**Created:** [May 8, 2020, 1:25pm UTC](https://forums.kinograph.cc/t/design-sprint-ii-motorin/1744 "2020-05-08T13:25:02Z")\
**Posts on this page:** 1\
**Showing post:** 9

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**Author:** ![matthewepler](https://forums.kinograph.cc/user_avatar/forums.kinograph.cc/matthewepler/32/919_2.png) [@matthewepler](https://forums.kinograph.cc/u/matthewepler)\
**Post date:** [May 13, 2020, 1:44am UTC](https://forums.kinograph.cc/t/design-sprint-ii-motorin/1744/9 "2020-05-13T01:44:40Z")

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I’ve also learned that I definitely did NOT want to order a three phase motor. I’ve ordered a couple more 12V and 24V motors, mostly around 150W to try out. With those results I should have a pretty good idea of what is working. In the running now are 3 general design patterns:

1. Direct drive via pulley with the existing tension hub design
2. Friction “slip” pulley with no tension hub
3. @Greg’s current sense design.

@Greg would you mind sharing your code and schematics for that? It would significantly lessen my learning curve and speed up the testing 🙂

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