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Post by dalboy on Jun 30, 2014 18:00:04 GMT
As I suggested this section I will kick it off.
Does anyone else find that the Allen screws that hold the jaws on the patriot chuck alway,s seem to round over after changing them a few times. Would they not be better if they were torx which give a better grip when tightening and loosening them
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Post by Pete on Jun 30, 2014 19:45:58 GMT
No problem here, are you over tightening? the jaws are an engineered fit that need the screws to be snug rather than tight.
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Post by Jeff Farris on Jun 30, 2014 19:50:01 GMT
Get a proper tee handle allen wrench, and you'll have much less of a problem. The little "L" shaped wrenches fit poorly, even the best of them.
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Post by dalboy on Jul 1, 2014 8:20:51 GMT
No problem here, are you over tightening? the jaws are an engineered fit that need the screws to be snug rather than tight. I wish someone told robert sorby as they were so tight when i first got the chuck. No I only nip them up I have very rarely had this problem over 25years of being a plant mechanic with other Allan sdrews. I would like to point out that Robert Sorby when I said about the screws at a show the gent I spoke to was not sure and was good enough to give me a set free of charge. I am very pleased with the chuck and it has done every thing I have wanted (Except when I bent a set of jaws They were the 1" long nose set and I had a lapse of concentration and had a spectacular catch and managed to bend them so totally my fault) Jeff I do use the T handle type as like you say the are much better. Normally Allen screws are not tightened and undone as much as what they are in this application |
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Post by Rob on Jul 1, 2014 21:11:34 GMT
why not just replace them with the the same length machine thread and matching countersink but a torx head? Cant do any harm and as you say would perform better. I'm sure one day Torx will take over the world, its just a question of time.
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paulm
New Member
Posts: 18 
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Post by paulm on Jul 4, 2014 9:29:36 GMT
I picked up a bag of replacements from toolstation or screwfix or somewhere, or may have been from ebay I can't recall, think it was only a few quid for 50 or 100 or such like. They will wear in the end and/or get lost in a pile of shavings, so figured that might as well get some spares in. I don't change jaws over so much now though having the luxury of a few chucks with the most used jaw configurations on them, but that's a bit more of an expensive solution !!!
Cheers, Paul
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Post by Pete on Jul 4, 2014 10:22:19 GMT
the luxury of a few chucks with the most used jaw configurations on them, but that's a bit more of an expensive solution !!! Cheers, Paul Now that is close to my ideal world, really need a much larger workshop and a set of lathes with the right size chuck jaws fitted  I hate doing a set of salad bowls or anything that is repeated from straight grained timber, spindles for stair cases, are my worst nightmare.... I try to convince people that the fashion is for every 4th one to be a different shape but seldom successful in this. instead I set my price too high and they go away and buy them somewhere else. This erratic behaviour does mean I spend quite a bit of time changing chuck jaws, and doing so without removing the chuck and laying it flat in a clean area does as you say risk losing screws, so I also obtained a bag of 50 spares quite soon after getting the chuck, bag is still mostly full think I have actually used one in the last 7 years, though the little 3mm screws on my router table and the 4mm screws on the scrapers seem to enter another dimension on leaving your fingers. Bottom line is machine screws are available from many sources, and in a choice of driving tools, get what you want, and buy a few spares too just in case! |
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Post by Rob on Jul 4, 2014 16:14:35 GMT
I swear there is a disruption in the space/time continuum directly under my headstock! Even when I clean the shavings just prior to changing jaws, and drop a machine screw....can I find it? Can I Bollxxx!
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Post by dalboy on Jul 4, 2014 16:51:52 GMT
I swear there is a disruption in the space/time continuum directly under my headstock! Even when I clean the shavings just prior to changing jaws, and drop a machine screw....can I find it? Can I Bollxxx! Or you drop one and it hits you shoe and you look where you think it would bounce to but end up finding it in totally the wrong direction |
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Post by Jeff Farris on Jul 4, 2014 19:08:28 GMT
Rare earth magnet on the shaft of the Allen wrench can minimize the danger.
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Post by ybotyawnoc on Jan 6, 2015 17:54:48 GMT
Can anyone please advise what thread size these are? I've managed to mangle one today and need to replace it!
Thanks in advance
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Post by Pete on Jan 8, 2015 11:34:37 GMT
Can anyone please advise what thread size these are? I've managed to mangle one today and need to replace it! Thanks in advance 10mm M6 is what you need |
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Post by Clive Brooks on Jan 12, 2015 14:45:51 GMT
Due to the design and specifications requirements needed when producing the Patriot chuck the jaw screws are a non-standard M6 x 10 mm.
The head diameter had to be reduced to stop them from protruding so they are not available off the shelf.
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Post by john Edyvean on Jul 10, 2016 11:45:12 GMT
you can also use the identical screw used in the similar Nova chuck range.
cheers John from down under in South Australia.
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Post by Pete on Jul 10, 2016 12:00:24 GMT
Then I must have been lucky, as I bought a generic bag of 50 countersunk machine screws which fit perfectly. I am using one on my chuck with 3 originals and I couldn't tell you which is which.
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