tag:blogger.com,1999:blog-5001794558945659136.post2976239188679916373..comments2024-03-29T05:53:36.579-05:00Comments on Mark Rehorst's Tech Topics: The CoreXY Belt "Tuning" MythUnknownnoreply@blogger.comBlogger6125tag:blogger.com,1999:blog-5001794558945659136.post-87849552855432245042024-01-23T07:14:02.382-06:002024-01-23T07:14:02.382-06:00I don't know how people keep coming up with th...I don't know how people keep coming up with this stuff.Mark Rehorst DMDhttps://www.blogger.com/profile/13616282129430791353noreply@blogger.comtag:blogger.com,1999:blog-5001794558945659136.post-52447648136411608042024-01-17T16:18:21.658-06:002024-01-17T16:18:21.658-06:00People say that tensioning the belts equally and h...People say that tensioning the belts equally and having exactly the same length is not because of some intrinsic issue with the CoreXY principle but to get "clean" input shaper graphs. Also a myth?Harrynoreply@blogger.comtag:blogger.com,1999:blog-5001794558945659136.post-80872138757558020662023-01-10T18:06:10.851-06:002023-01-10T18:06:10.851-06:00Are you suggesting tensioning the belts first, the...Are you suggesting tensioning the belts first, then tweak the axes? That might be a good idea if the machine were designed to allow it. I'll have to think about the required changes to the mechanical design of the Y axis bearing/pulley blocks...Mark Rehorst DMDhttps://www.blogger.com/profile/13616282129430791353noreply@blogger.comtag:blogger.com,1999:blog-5001794558945659136.post-28021658531130162822023-01-10T06:31:45.217-06:002023-01-10T06:31:45.217-06:00About 27 years ago I built industrial fluid dispen...About 27 years ago I built industrial fluid dispensers for a US company. We calibrated the entire dispenser area to a couple ten-thousandths of an inch every wee little bit of surface (thousands of dots aligned). We ALWAYS squared the machine XY axes after we tensioned the cables. It saved hours in the calibration time and made the machines meet the accuracy & repeatability standards of our international customers. Z axis was direct drive, no belt/cable.Steve Popowskinoreply@blogger.comtag:blogger.com,1999:blog-5001794558945659136.post-65031950644362794552022-09-17T18:28:48.233-05:002022-09-17T18:28:48.233-05:00I think the problem is that people assume everythi...I think the problem is that people assume everything is perfectly rigid even in machines where guide rails are held in printed plastic blocks (often designed to look like they are made from folded sheet metal!). Mark Rehorst DMDhttps://www.blogger.com/profile/13616282129430791353noreply@blogger.comtag:blogger.com,1999:blog-5001794558945659136.post-81205688260054140892022-09-14T07:56:31.751-05:002022-09-14T07:56:31.751-05:00A worthwhile post for tuning belts. Too many peopl...A worthwhile post for tuning belts. Too many people concentrate on its twang rather than the squareness of the printerjay_s_uknoreply@blogger.com