Chuck stop set

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Pevehouse

H-M Supporter - Silver Member
H-M Supporter - Silver Member
Joined
Oct 27, 2023
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Hello all, I am in need of a chuck stop set for machining round flat discs. Just wanted to see if anyone has used anything that’s on the market such as edge technologies set
 
Can you explain farther on what you're doing ?
 
Are you talking about this?

www.edgetechnologyproducts.com

Chuck Stop Set 30-000

The Chuck Stop by Edge Technology is designed to locate shorter parts beyond the chuck jaws to provide clearance for facing operations. The Chuck Stop uses different height parallel bars to achieve the required spacing. A centering plug is used to keep the unit centered to the ID of the chuck...
www.edgetechnologyproducts.com www.edgetechnologyproducts.com

I have one, and use it pretty frequently. It's great with thin stuff. Sure beats holding parallels under the part by hand. :)

I do wish it was easier to swap heights. It's not difficult per se, but it is a bit on the time consuming side. Thankfully, I don't find myself needing to change it that often, I can usually make things work with one of a few sets of parallels.
 
All too easy for parallels to come loose and fly out at you or get jammed up as the come loose, definitely not a safe thing to do.
 
benmychree said:
All too easy for parallels to come loose and fly out at you or get jammed up as the come loose, definitely not a safe thing to do.
Click to expand...
You remove the parallel(s) after the part is secured in the chuck jaws. The advantage of the magnetic stops is that you don’t need three hands.
 
If I’m understanding correctly these used to be called chuck spiders, at least that’s what I knew them as. Easy enough to make — I made one for the 3-jaw and one for the 4-jaw. On mine there is a set screw between each of the slots so you can dial it in in the event your chuck face isn’t true. Or maybe I’m misunderstanding the purpose?

This isn’t mine, just a screen grab to show the design…

IMG_2764.png
 
francist said:
If I’m understanding correctly these used to be called chuck spiders, at least that’s what I knew them as. Easy enough to make — I made one for the 3-jaw and one for the 4-jaw. On mine there is a set screw between each of the slots so you can dial it in in the event your chuck face isn’t true. Or maybe I’m misunderstanding the purpose?

This isn’t mine, just a screen grab to show the design…

View attachment 480751
Click to expand...
thats like mine. I have 2, one thicker than the other. I call it a spider. I just face it every once in a while, mine are beat up, and I have a new chuck coming , so will have to make new ones. I don't understand @ChazzC 's need for 3 hands, I've never found it difficult on a 3 jaw.

I try to stay away from Magnetic stuff that remains on the lathe or mill. I just don't like the swarf being attracted. Especially rare earth magnets which can't be cleaned easily. Indicator mags are sought of ok.
 
I've often used parallels in the chuck **for setup only** then knocked them out prior to actually starting the spindle. Not as secure as a spider, but it works in many cases. If I were doing something truly thin I'd probably want a spider, but I usually find another way (different order of operations, parting off, gluing the piece to a mandrel, etc).

GsT
 
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