Of the thickness of the casting wall of the main body (the casting that tilts with angle) of the HS-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 -- "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
