Sep 28, 2017, 01:26 AM
The Following 2 Users Say Thank You to rossbotics For This Useful Post:
olderdan (Sep 28, 2017),
Seedtick (Sep 28, 2017)
Sep 28, 2017, 05:23 AM
Thanks rossbotics! We've added your Boring Bar Holder to our Machining category,
as well as to your builder page: rossbotics's Homemade Tools. Your receipt:
Sep 28, 2017, 12:27 PM
Nicely done Doug, have you also seen the triangular toolpost on the Stepperhead lathe, I thought that was pretty cool too.
Sep 28, 2017, 09:58 PM
Why didn't you save yourself a toolholder and make the whole setup more rigid by fitting a steel block directly onto the toolholder post on the compound and drilling the 1/2" hole in that? It would have been closer to the center of the toolholder post and less likely to pivot away from the workpiece when boring. At present, the whole setup will pivot away under pressure during a boring operation resulting in a bellmouthed bore.
The best sort of boring setup here would be a tall steel block on the cross-slide held down by long t-bolts. The lower face must have a lip that drops over the left-hand edge of the crosslide and prevents the setup from pivoting. The 1/2" hole is then bored directly from the headstock and is guaranteed to be on center height.
The Following User Says Thank You to mfslater For This Useful Post:
Sep 29, 2017, 03:07 AM
The Following User Says Thank You to rossbotics For This Useful Post:
Sep 29, 2017, 09:07 PM
I needed to do a small bore and made something very similar. Milled 'tang' onto a steel block (unknown material grade) Just drilled a half inch hole by holding drill in lathe chuck and using saddle to feed material. Dilled and tapped for a few 6mm bolts, 1/2" slid in but did need modifying to get correct centre height (cheap Chinese brazed carbide, needed modifying to be usable )
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
- You may not post new threads
- You may not post replies
- You may not post attachments
- You may not edit your posts