Chamfer Tips Tools Advice.

[yescaster]

Chamfering tools? (for doing it fast and consistantly?)

Advice? (altering material properties by doing too fast?)

Tips? (all ideas on production chamfering, and industry procedure?)

Science of field, between chamfered and flat top poles? (seems it would make a difference)


I never personally chamfered (old Fenders weren't), except gently sanding one edge in a drill chuck to get the bobbins together easily w/o punching out material.

years ago someone said "I always play chamfered poles so I don't cut myself"

I replied "rediculous- you're playing to hard"

I was wrong....a few cutup and bloody years later.

But I am still wondering if the field will be measuribly/audibly different to the unaverage toneseek ear.

[restorationad]

Chuck them in a battery drill and use it to spin them against the grinder

If you google the Premier Guitar shop tour for Seymour Duncan you can see it first hand.

[yescaster]

yes....I had that idea as well... but also wondered if there was a more productive way to do it. For instance a tool that is made for that purpose.

an interesting app also...would be a press or freehand chuck tool that is useable after the poles are already in the pup...if that is the case with those poles.

[yescaster]

If you google the Premier Guitar shop tour for Seymour Duncan you can see it first hand.

please post a link.. can't find it. thanks for replying.

[restorationad]

YouTube - How to Make a Pickup Part 1

YouTube - How to Make a Pickup Part 2

YouTube - How to Make a Pickup Part 3



and finally... how to find it

[yescaster]

Thankyou. Wonder what that is in the end of the cordless screwdriver...looks like a magnetic holder... just sets the poles in it and goes. hmm.. thanks.

Funny how they mention chamfered poles on vintage pups... the ones I have handled were not chamfered...as late as the 70's even. Maybe the earliest ones ?? Here's a pic of some Fender frames from 1975.


The Fender reissues are chamfered I know.

Other thing is...I have a slew of unchamfered bobbins made up and laquered, and I've decided I'd like to put a subtle chamfer on them. Was hoping there is a tool for that.

[restorationad]

Those are nice pickups you have there... Thanks for the pics. That is interesting about not having a chamfer. Maybe one of the vets around here can explain.

[frankfalbo]

Our chucks are not magnetized. They are simply sized well, and the magnet rests in there. The poles of course are not magnetized at that point either, but you can tell that from the video.

[automan]

Yescaster, how do you get the shown 8500ish 42 AWG winds on those bobbins and have so much room left on the bobbins? When I get past 8200, even with very tight winds, I have to bulge in the middle to get more wraps on to keep it from spilling over the top flatwork. I also noticed from the bottom pic that you leave metal from the eyelets pretty high up towards the middle. I always file mine flat to keep from getting wire hangs there while winding. Do you file before you wind or do you tap them over?

[David King]

Any of the magnet suppliers can chamfer your magnets perfectly for a lot less that you can do it at home, $.02-.03 a piece from Asian suppliers.

You could make or buy a little cupped grinding stone that fits in a Dremel tool to chamfer your magnets in situ. You would probably need to re-dress it every few magnets. The green stones are harder and will last longer than the grey ones. Use the corner of the dressing stone to make a little depression in the center of the stone and open it up until it fits over the end of your magnet. Start with the short mags and work your way to the taller ones then re-dress the end face for the short mag on the next pickup.

[Possum]

...

I use a Foredom handpiece and spin against a spinning disc sander, finer grit sandpaper. It wears out the sanding pads pretty fast but does a much cleaner bevel than a grinder will, unless you get a fine grinding wheel like Seymour's.

[David King]

I use a Foredom handpiece and spin against a spinning disc sander, finer grit sandpaper. It wears out the sanding pads pretty fast but does a much cleaner bevel than a grinder will, unless you get a fine grinding wheel like Seymour's.

There are some rubberized grinding wheels that would be ideal for this. Widely used in dentistry but also for deburring. A lot of folk use them for cleaning up fret ends on guitars.

Brightboy and Craytex are two manufacturers, they come in 6" dia too.
Grinding Wheels, Rubber & Stone- Grinding wheels, 2"-6", in a variety of grits from super fine to very coarse, in rubber & silicon carbide

[Possum]

...

I don't think that would be a good choice, alnico is extremely hard and would make short work of those wheels I bet. I used to use that stuff alot for jewelry work, alnico would shred it for sure. A fine grinding wheel like Duncan uses would probably be best, I like the sander because you don't wear a groove in it and just replace the pads when they're done...

[yescaster]

Those are nice pickups you have there... Thanks for the pics. That is interesting about not having a chamfer. Maybe one of the vets around here can explain.

You are welcome. Thankyou. They are rewound 1975 fenders. Yes.. and no chamfer.

[yescaster]

Our chucks are not magnetized. They are simply sized well, and the magnet rests in there. The poles of course are not magnetized at that point either, but you can tell that from the video.

I realized that after I posted. makes sense. Hmmm.. I should make one of those grips. Maybe with rubber inside incase i'm working with different diameters. Thanks for the explaination.