/challenges-projects/design-challenges/pichef/b/blog/posts/cracked-pepper-sir-pieces-and-bits-pi-chef-challenge-blog-post-9So This week I didn&#39;t end up getting much time to work on the project. I focused on final testing of the arm and finding an alternative to running the grinder from the Pi Face. For the final testing of the arm I simply wanted to run both motors ...en-USTelligent Community 12https://community.element14.com/challenges-projects/design-challenges/pichef/b/blog/posts/cracked-pepper-sir-pieces-and-bits-pi-chef-challenge-blog-post-9Mon, 19 Mar 2018 13:56:35 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:4a7afb86-7ec8-4dbb-a37c-edcb9c50c7e1genebren1<p>Nice update on your project.&nbsp; It is good that you are getting the electronics working.&nbsp; Servos are pretty touchy in direct drive situations.&nbsp; They tend to snap to position quickly on changes in command.&nbsp; I have had some success in filtering the servo&nbsp; command going into the PWM driver with digital filtering.&nbsp; This way the pulse width is commanded to slowly change, allowing the servos to &#39;slew&#39; to position instead of &#39;snapping&#39; to position.</p><p>Good luck on your next steps.</p><p>Gene</p><img src="https://community.element14.com/aggbug?PostID=4472&AppID=183&AppType=Weblog&ContentType=0" width="1" height="1">