Four Jaw Chuck Regrinding the Jaws

[@TheAyrCaveShop]

I forgot to explain what the issue was with these chuck jaws; They were not ground parallel to the centerline axis. So it was posable to indicate a workpiece concentric, but it would orbit that indicate spot like an hourglass.

[@swanvalleymachineshop]

Sorted . Great result . Being a new chuck , you got away with the jaws preloaded the way . Cheers 👍

[@TheAyrCaveShop]

Thanks Max !

[@hilltopmachineworks2131]

The Hung Pow chuck lives to fight another day. Good job!

[@TheAyrCaveShop]

Bruce Lee would approve 💪💪

[@StuartsShed]

I admire your tenacity in sticking with this - you learned plenty and that's a huge deal. Personally I have given up on the cheapo chucks at this point because it's too much effort to fix them, detracting from the jobs I want to do with what little time I can get in the shop. That said - just goes to show what you can do if you put your mind to it. Great work!

[@TheAyrCaveShop]

Thanks Stuart, it was a free chuck that came with the lathe. Yeah I've learned my lesson on the cheep stuff too.

[@StuartsShed]

Free is a pretty darn good price though. 😆

[@MattysWorkshop]

Gday Dean, definitely a win, it may have been easier and cheaper to buy another chuck but then you wouldn’t of had the opportunity to learn what you have, you did a great job mate, cheers

[@TheAyrCaveShop]

Thanks Matty, and having fun with shop toys 👍

[@RRINTHESHOP]

Good job on getting the taper out of the jaws. Thanks for sharing Dean.

[@TheAyrCaveShop]

Thanks Randy !

[@marklester7034]

Another great and helpful video. I have a new-to-me 4 jaw I’m evaluating now.

[@JourneymanRandy]

I have to do my three jaw. Lately I've been thinking or just buying a new one. Thanks for the inspiration Dean.

[@TheAyrCaveShop]

Thanks Randy, yeah the 3-jaws are easier to do, go for it 👍

[@Rustinox]

I would call that a win too. Very nice result. This was an interesting "go for it" project.

[@TheAyrCaveShop]

Thanks Rusty, it was a long road but got there in the end.

[@AlmostMachining]

Great job Dean!

[@TheAyrCaveShop]

Thanks Phil !

[@nobbysworkshop]

Great job on grinding the jaws. Getting to half a thousand is amazing. Cheers Nobby

[@TheAyrCaveShop]

Thanks Nobby, Yeah the main issue was the bell-mouthing.

[@outsidescrewball]

enjoyed….nice discussion and work

[@TheAyrCaveShop]

Thanks Chuck !

[@trollforge]

Dean, what do you think about the difference between jaws in compression vs in extension for grinding? I ask because it is going to be high on my list, once I find someplace to unpack my shop...

[@TheAyrCaveShop]

Yeah compression is the way to go, but not easy to setup. I did it on one with 2-peice jaws using longer outer bolts to catch the tensioning ring. Robin Renzetti has a real good video on using a bearing race and a hard turned engagement slot. I did think about using a carbide drill to put some pin bores in the jaws to engage a compression ring. The rabbit hole was just getting too deep.. Great comment Thanks!

[@trollforge]

@@TheAyrCaveShop Thanks!

[@christophercullen1236]

Buying a new chuck is not going to teach you anything . Doing will improve your skills on your hobby . I use to hate boss who would say I can't give that job to the apprentice he will only fuck it up ! How will he learn ! Kit from down under

[@TheAyrCaveShop]

Thanks Kit, this was great confidence builder. I might even take on building from scratch a D1-4 backplate for a another chuck in need. Cheers...