On Saturday 21 December 2019 02:15:22 you wrote: > Gene, > please be so kind as to tell an ignorant european just what a HS-1 is? > Peter
Peter, I was half asleep when I wrote both my post and my reply to you. Everyplace where I typed HS-1 should have been BS-1. That ought to remove a lot of confusion. So I've edited that post as below to fix it. and will repost it. Definitely my bad. I sure hope its not permanent brain damage from post op debris in my system. > Am 21.12.2019 um 00:37 schrieb Gene Heskett: > > Of the thickness of the casting wall of the main body (the casting > > that tilts with angle) of the BS-1 at the center of the side? Keep > > in mind this a probably a Chinese clone. Main assembly is 57kg. > > > > I am considering boreing a socket/hole at the center of that > > rotation, hopefully not clear thru to the oil, and planting a short > > shaft to locate an idler pulley, aiming for a press/drive fit of a > > short piece of 1/2" A2, brought down to dry ice temp. with a > > nominally 1.0" projection beyond the flange of the worm gear. By > > that means I can get enough clearance from the worm mounting flange > > that will let me use a timing pulley that almost touches the worm > > shaft. Tooth count is immaterial at this stage but as large as will > > fit. > > > > Then I'll make the second pulley to fit on a torrington needle cage > > turning on that shaft but the second pulley will be as small as > > practical, with as large a pulley as will fit and clear on the worm > > shaft. This will be a pretty short belt and will likely need a side > > pushing small idler to properly tension the belt. With a home switch > > mounted, scale can be determined to several decimal places with a > > code chain already sitting idle in that machines hal file, having > > used it to calibrate the spindle gear ratios. > > > > This is the only scheme I can come up with that will not require > > huge belt adjustments with the motor mounted on the rear of the base > > casting when the angle is changed. > > > > Changing the angle will then be a homing error that's calibrated out > > by simply rehoming it. And it ought to result on a high enough gear > > ratio that a nema 23 or 24 motor can drive it under cutting load. > > > > How am I doing? Does it sound doable? > > > > First of course is the skyhook and a screw eye to move this thing, > > probably something from harbor freight with a pendant controller. > > But I'm still under post surgery exertion limits. For those curious, > > they inserted a TAVR valve. Except for minor pain in the groin area > > on both sides, I feel pretty good. > > > > Cheers, Gene Heskett I found a 440 lb rated hoist at Amazon and bought it with slow shipping, under a 100 dollar bill. S/B here before the first. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
