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#1
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Leading edge of the teeth is 4mm tall.
![]() ![]() ![]() ![]() ![]() Here's a quick vid showing the dismal result of my grinder idea ![]() ![]() https://www.youtube.com/watch?v=mVqz9mOMUM0 Camera doesn't show depth very well... tunnel is about 3ft inward. ![]() ![]()
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#2
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I wonder if it would be better to operate them like a screw? Maybe two sphere shapes spinning opposing each other like a twin screw on a boat. One motor per sphere or a gearbox between the two? At least it would try to crawl up the wall.
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