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Homemade Cole Type Jaws for my Grizzly G0766 lathe

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Forum topic by Jack Lewis posted 08-22-2016 10:54 PM 736 views 0 times favorited 9 replies Add to Favorites Watch
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Jack Lewis

78 posts in 545 days


08-22-2016 10:54 PM

Topic tags/keywords: cole homemade dyi aluminum jaws

Material cost $37.50
Saw blades $8.00
Still need to get some bumpers.
Have all the metric screws.
Overall 20-21 inch coverage.
Hardest task was cutting into quarters.

Layout of sheet

Layout of hole pattern, copy from other smaller Cole Jaws.

Cutting into quarters. Too big for my bandsaw.

Sure used a lot of blades and it shook me pretty good!

Drilled mounting and bumper holes, still need to tap with 6mm tap

On the lathe at last.

All the blue layout removed (almost)

Balancing from the rear side with shallow drilled spots.

-- "Now we are getting no where, thanks to me"


9 replies so far

View HapHazzard's profile

HapHazzard

92 posts in 334 days


#1 posted 08-23-2016 12:38 AM

Nice job! Is that .25” 6061-T6 plate?

Try a little thread cutting oil on your saw blades. It smokes like hell, but the blades last a lot longer. And if your Skilsaw is variable speed, use the slowest possible speed.

-- Unix programmers never die; they just > /dev/null

View Jack Lewis's profile

Jack Lewis

78 posts in 545 days


#2 posted 08-23-2016 12:53 AM



Nice job! Is that .25” 6061-T6 plate?

Try a little thread cutting oil on your saw blades. It smokes like hell, but the blades last a lot longer. And if your Skilsaw is variable speed, use the slowest possible speed.

- HapHazzard


>.25” 5052 T6 Slowest speed and I would still be there cutting. LOL

-- "Now we are getting no where, thanks to me"

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HapHazzard

92 posts in 334 days


#3 posted 08-23-2016 12:35 PM

6061-T6 is about 35% harder (B60 Rockwell), but’s generally more machinable.

-- Unix programmers never die; they just > /dev/null

View JoeinGa's profile

JoeinGa

7487 posts in 1473 days


#4 posted 08-23-2016 02:09 PM

Well for 45 bucks and some of your time, no matter what grade the aluminum is, that’s a dang NICE set of cole jaws !

-- Perform A Random Act Of Kindness Today ... Pay It Forward

View Jack Lewis's profile

Jack Lewis

78 posts in 545 days


#5 posted 08-23-2016 03:26 PM



Well for 45 bucks and some of your time, no matter what grade the aluminum is, that s a dang NICE set of cole jaws !

- JoeinGa


Thanks.
I had made a wooden add on to smaller cole jaws for my other lathe but was always dissatisfied with the “clunkiness” of them. Think I will make a 14” dia. set for it now.
To HapHazard: 5052 was the only grade I could find here in this one horse town. Not like it was that important anyway. And TX for the oil idea, I had forgotten about that working with wood so much.

-- "Now we are getting no where, thanks to me"

View Wildwood's profile

Wildwood

1887 posts in 1601 days


#6 posted 08-23-2016 04:23 PM

Think made an outstanding Cole Jaw Chuck. You can find different size & style rubber bumbers pretty inexpensive. My friend got his from a medical supply house.

http://rubberbumpers.net/recessed-rubber-bumpers

http://rubberbumpers.net/rubber-end-bumpers

http://budwigmoldedproducts.com/page/4/

-- Bill

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HapHazzard

92 posts in 334 days


#7 posted 08-24-2016 01:10 AM



To HapHazard: 5052 was the only grade I could find here in this one horse town.

I get most of my stock from www.onlinemetals.com. The prices are pretty good, but they really soak you for shipping, so I try to order as much as I can at once. Once in a while they have sales or flat-rate shipping or other special deals. They also sell plastics.

-- Unix programmers never die; they just > /dev/null

View soob's profile

soob

223 posts in 675 days


#8 posted 08-24-2016 04:28 PM

Why didn’t you start with four smaller, square pieces?

I know that’s not how they make chuck jaws, but it seems like it’d work fine given the tolerances involved here.

View Jack Lewis's profile

Jack Lewis

78 posts in 545 days


#9 posted 08-24-2016 06:38 PM



Why didn t you start with four smaller, square pieces?

I know that s not how they make chuck jaws, but it seems like it d work fine given the tolerances involved here.

- soob


There is a groove on the reverse side the chuck keys into. It really made little difference if I started with large or smaller pieces, they still had to be cut. Buy cutting the larger piece I also got a kerf gap between each quarter. It was easier and more accurate to layout the bolt holes for the chuck and the holes for the bumpers. When ever I checked the cost of smaller pieces the price went out of reach. I purchased locally a 4 foot x 4 foot piece much cheaper than the 4 smaller 10” x 10” pieces and no shipping added on. I also have material for other projects or jaws in the future.

-- "Now we are getting no where, thanks to me"

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