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Drill chuck jaws

sparkuk

Member For 1 Year
Got a second, two-speed drill the other day, as my little Bosch drill driver doesn't go nearly fast enough for wrapping. Thing is, the chuck. Its jaws (unlike the Bosch) have curved inner edges, and therefore do not close down completely, leaving a hole in the middle. Good for gripping drill bits, not so good for coil building!
Just thought I'd gather up some workarounds others are using, particularly when straightening single strands?

Wrapping is ok, as I just make a bunch of overlapping wrap at the end, then open the chuck and place that 'bulge' in the jaws. However the main issue is when straightening my core beforehand; I put a right angle in it and grip that in one jaw, but it still leaves the strand loose between the jaws, and a few turns of the drill and it snaps on me.
 

mreeveshp

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Member For 5 Years
What I do is bend the end of the straight inner wires that are going in the chuck 90 degrees and close them between the the jaws so the inner wire should be coming out the middle hole.

Then the wire I'm going to wrap around the core I tie or wrap to the piece that's sticking out the side of the chuck then wrap the outer a few times around the core by hand before slowly turning the drill then slowly speeding up.

There are a bunch of YouTube videos that people have the same style chuck and you can see them do it


Thanks
mreeveshp

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gopher_byrd

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The only ideas I have are:
1. Wrap some masking tape on the wire you want to straighten, then clamp on to that with your new drill.
2. Keep the Bosch around for straightening duty.
3. Depending on the gauge, just give the core wire a tug to straighten it.
 

mreeveshp

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Member For 5 Years
Do you spin each core first to straighten it though? That's the part it's been snapping on me.
Yes you straighten every strand once you have a straight peace make a 90 degree bend about a half inch or so on one end and then clench between two jaws I'm about to take some pictures and see if I can upload them to see if that will help

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mreeveshp

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mreeveshp

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The first 2 are how you lock the core in and the third is wrapped by hand around the part that's sticking out the side then the fourth is wrapped by hand to get a start and then slowly start spinning the drill
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3dff535245b7ba35fe787ff1b10c5e88.jpg


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mreeveshp

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mreeveshp

Bronze Contributor
Member For 5 Years
Those were just scrap strands so they weren't the straightest but I hope that helps

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mreeveshp

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mreeveshp

Bronze Contributor
Member For 5 Years
Do you spin each core first to straighten it though? That's the part it's been snapping on me.
Also for a dual core I straighten one wire and then bend it in half then put one end through the swivel and pull it until the part that's bent in half is the part touching the swivels leaving you 2 wires to connect to the drill so that will look like picture one then you do the step that's in picture 3 and then when you spin the drill it spins the core wires wrapping the outer wire around the cores

Thanks
mreeveshp

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sparkuk

Member For 1 Year
I'm fine doing the outer wrap, the issue is the procedure of straightening each single strand prior to that, as in taking a single piece of core wire, putting a right angle in it, chucking it up, holding the other end with pliers, and spinning the drill a bit, to straighten it. But the hole in the jaws means although the right angle is trapped between two jaws, the strand gets no support in the centre of the jaws, and has a tendency to snap.
 

gopher_byrd

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I'm fine doing the outer wrap, the issue is the procedure of straightening each single strand prior to that, as in taking a single piece of core wire, putting a right angle in it, chucking it up, holding the other end with pliers, and spinning the drill a bit, to straighten it. But the hole in the jaws means although the right angle is trapped between two jaws, the strand gets no support in the centre of the jaws, and has a tendency to snap.
See post # 4 from me or @SteveS45"s post above...
 

mreeveshp

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See post # 4 from me or @SteveS45"s post above...
What I do to straighten is just pull off what I'm going to use from the spool bend one end 90 degrees to lock it in just like the picture then hold the other with pliers and give it a 2 second full speed spin and its straight as an arrow that might be another option for you

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mreeveshp

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mreeveshp

Bronze Contributor
Member For 5 Years
I don't know I guess since I've been doing it that way for so long now it doesn't bother me one bit and only takes a split second to make that bend and it just means I cut and lose that small piece. I know if it was me I'd rather just have to pull one drill out then two cause I have so much other stuff out when I'm doing big builds or a bunch of builds

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mreeveshp

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gopher_byrd

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What I do to straighten is just pull off what I'm going to use from the spool bend one end 90 degrees to lock it in just like the picture then hold the other with pliers and give it a 2 second full speed spin and its straight as an arrow that might be another option for you

Thanks
mreeveshp

Sent from my Note 8 using Tapatalk
@sparkuk has a drill that doesn't close in the middle which is his problem with trying to straighten wire before Claptoning it. The wire breaks when he tries to straighten it with it being unsupported in the middle of the drill. That's why I suggested wrapping some masking tape on the end that the chuck can grab a hold of. Heck, he even can use some junk wire like he does when he does the Clapton. Another alternative is to use his old Bosch unit for straightening the wire. Smaller gauge wire you can just give it a tug to straighten it as well.
 

mreeveshp

Bronze Contributor
Member For 5 Years
@sparkuk has a drill that doesn't close in the middle which is his problem with trying to straighten wire before Claptoning it. The wire breaks when he tries to straighten it with it being unsupported in the middle of the drill. That's why I suggested wrapping some masking tape on the end that the chuck can grab a hold of. Heck, he even can use some junk wire like he does when he does the Clapton. Another alternative is to use his old Bosch unit for straightening the wire. Smaller gauge wire you can just give it a tug to straighten it as well.
I could see where that could work. I know from when I straighten it's not supported in the middle I just give it a few short blasts and its straight then I pull it out of the chuck and snip off the tiny bit that I crooked sideways. If I spin for a long time it might snap but usually snaps right where I made the bend. I would at least say try not spinning it as much just a few 1-2 second blasts and I do that at max speed.

But I would also say my way may not work for everyone so to each their own.

Thanks
mreeveshp

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sparkuk

Member For 1 Year
OK thanks for the replies, I have retained the old drill for now, it's ok but naturally it would be easier not to have to pull out two drills and keep them both charged etc. The micro chuck could work well also, I'll have a look around for one.
 

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