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  1. 01-01-2016 #10
    Jonathan's Avatar
    Lives in Leicester (Home) or Nottingham University (2nd Home), United Kingdom.
    Jonathan
    Last Activity: 05-04-2020 Forum Superstar, has done so much to help others, they deserve a medal. Has been a member for 9-10 years. Has a total post count of 3,571. Received thanks 325 times, giving thanks to others 8 times. Referred 1 members to the community.
    Quote Originally Posted by JoeHarris View Post
    Jazz, is there enough engagement on the top right pulley? What's the minimum? you could add one more like this?? I Click image for larger version.  Name: ImageUploadedByTapatalk1451651545.184148.jpg  Views: 303  Size: 60.6 KB  ID: 17005
    The spec. for HTD belts say make sure to have 5 teeth engaged. This is based on ensuring that with a sufficiently high load, the belt will snap instead of the teeth ripping off. This hardly matters to us, as we're not using the belts at close to their load ratings, however we do want to get good stiffness from the belts (especially with such a long best) so it seems a reasonable baseline to design for at least 5 teeth engaged.
    Old router build log here. New router build log here. Lathe build log here.
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