View Full Version : Jig for Bending Multiple Resistors

10-22-2011, 01:26 PM
I had a lot of resistors to bend and decided to build a jig to allow me to bend them in batches of ~10. All the jigs I found online only bent one at a time. Bending over something the right width (such as a piece of wood) didn't center the component easily, especially in batches.

This jig is designed for 1/8 watt and 1/4 watt resistors and spacing for the DIYC boards I've been using. It centers the component, support the ceramic and the lead at the centerline and then allows easy bending to the 90 deg angle. This way the component is centered and the leads don't bend where they enter the ceramic.

I would load several resistors into the tray, hold them down with my thumb and bend over the leads on each side with my finger. Then dump into the pile of pre-bent components.

Thought this may be a time saver or helpful so here are a couple of pics. I only show one resistor on each section for illustration.


10-22-2011, 01:52 PM
I simply hold the resistor in between my right index finger and right thumb with the leads perpendicular to my fingers, then with my left hand "drag" my index finger and thumb across the leads bending the leads down. I can pick them out of an "unbent" pile and have a pile of "bent" resistors in no time flast. I like the jig though! :)

Wayne J
10-22-2011, 02:27 PM
Cool! I like that!

10-22-2011, 03:00 PM
I built something very similar, using "tongue depressors" (the craft type.. not the medical ones). Four in total, with the two center ones being slightly offset. You can hold it in on hand and feed resistors in with the other. Made the LED STRIPS a *lot* easier to deal with.

Greg in Canby
10-22-2011, 03:31 PM
Love the idea.

Maybe I'm not the only one that really needs to have the components straight and centered in their places. Super neat and lined up and perfect (aesthetically speaking) on a PCB that nobody else will see.

Great looking jig!


10-22-2011, 04:38 PM
Funny Greg! Yeah, I was serving my neurotic needs a bit, but I like the resistors centered and the leads bent at a clean 90 deg and not "drooping" off the ceramic.
When I first learned to solder at my local Community College, they taught us to comply with MIL-SPEC, which says you can't mark the leads with pliers and can't deform the lead where it comes out of the component. Of course, this also makes it look pretty good.
I thought of making up a few and offering for sale if anyone thinks they are worth it. Not too much time into them on the milling machine.

10-22-2011, 05:16 PM
Nice work on your jig.

For those not skilled in the art of metal or wood work, a cheap component leg forming tool is an alternative.


10-22-2011, 05:48 PM
Nice work on your jig.

For those not skilled in the art of metal or wood work, a cheap component leg forming tool is an alternative.


And - - an 8/10mm Straw Hat LED will straddle this 'fishbone' sideways so that you can bend the leads at 90deg for the ACL strobes! Came in very handy...

10-25-2011, 03:24 AM
I just added THIS to the shop, just for bending resistors - it can bend 4 at a time, as long as they are under 1/4 watt...


10-25-2011, 05:20 AM
We have a hand tool at work for low quantity bending as well as one that takes axial components on their tape. You can bend up a box of 1000 resistors in about a minute with the larger one. :D

11980 11981

10-25-2011, 05:29 AM
Nice jig I'm be interested in one depending on price and shipping cost.

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10-25-2011, 10:28 AM
I'm also interested depending on cost.

10-25-2011, 12:45 PM
Mouser has lead benders for $5.05 - item 5166-801