Expert advice needed- tap and die for router issue

[Christopher Herzog]

Porter Cable router got cross threaded, not the collet side. Need to get the right size die. It is for the standard size spindle. Can someone please let me know what I need?

Thank you for your time!
Chris

[Bruce King]

Have you looked up the spindle to see if they listed the part number along with the thread data? Which model number?

[Christopher Herzog]

690 is the model

[Bill Dufour]

Perhaps a thread file will do. Is that 1/4 or 1/2? unlike you I do not have all model numbers memorized.
Bil lD

[Bill Dufour]

15/16 sound good? maybe 16, 18, 20, 22, 24, 32 tpi would be a standard.
Bil lD

[Bruce King]

Do you have a thread pitch gauge? https://en.m.wikipedia.org/wiki/Thread_pitch_gauge
Auto parts store has them.

Is this the spindle? Pic is not good but should be able to tell.
If it is you can try calling them about the threads.
https://www.repairtoolparts.com/porter-cable-parts/porter-cable-513-type-2-parts/porter-cable-695474-cutter-shaft-assy

[Andy D Jones]

Boy, I say boy! Ya' goin' about it all wrong!

Ya' gotta look at dis like uh tailuh-made excuse tuh buy uh brand spankin' new rowtuh!

-- Andy - Arlington TX

[Joe Jensen]

I doubt you will easily find a tap the right size. When you do it's likely an industrial quality one. It may well be cheaper and easier to replace the armature in that router.

[Brian Holcombe]

How bad is it? I’d probably just file the start thread by hand to repair it.

[Bruce Wrenn]

How bad is it? I’d probably just file the start thread by hand to repair it.


Why not replace the chuck (part 83 on parts diagram?) Use an impact gun to remove it.

[Richard Coers]

Once you tear, break, or cross thread something, there is no steel left to thread. If you try and run a die, it may or may not catch at the same place and anything that looks like new threads will not line up with good threads further down. That armature is toast.

[Brian Holcombe]

Why not replace the chuck (part 83 on parts diagram?) Use an impact gun to remove it.

It depends on how awful the thread is, if it was just started and the user stopped, then a light touch up with a file is enough. If the user forced it, then yes it should likely need replacement.

[Mike Kees]

I am trying hard to figure out how one would cross-thread this collet. I insert bits and thread/tighten the collet by hand until snug and then finish with the wrenches.

[Jim Becker]

I am trying hard to figure out how one would cross-thread this collet. I insert bits and thread/tighten the collet by hand until snug and then finish with the wrenches.
It can happen when changing back and forth between collet sizes.

I'm really, really careful about this with the spindle on my CNC machine because buggering the threads could me thousands of dollars to replace things since it would not be DIY...

[Mark Bolton]

How do you cross thread a router collet nut? yeek

[Mark Bolton]

It can happen when changing back and forth between collet sizes.

I'm really, really careful about this with the spindle on my CNC machine because buggering the threads could me thousands of dollars to replace things since it would not be DIY...


Jim.. if you cross thread the coarse thread spindle in your router.. you deserve to be relegated to a walker, straw, rubber spoon, and potty chair.... come on man.

[Jim Becker]

Jim.. if you cross thread the coarse thread spindle in your router.. you deserve to be relegated to a walker, straw, rubber spoon, and potty chair.... come on man.
Mark, it can happen and I've seen at least one online post where it did for some unfortunate soul. Remember, I don't have an ATC, so I'm changing tooling manually during a file run, albeit with automatic measuring. Some of my stuff uses three different sized collets, so I just try to take care for obvious reasons. It only takes one moment of stupidity and none of us are immune from those moments... ;)

[Christopher Herzog]

Wanted to provide some closure on this:

1" die at 20 tpi is what worked for me. It cleaned up the small amount that I damaged. Collet is back to where it started.

Nothing twenty bucks on eBay could not take care of!

So glad it worked, I may have way too many routers but could not bear to see one go out like that!

Chris

[Bruce King]

Good deal, always feels good to fix vs replace.
Did you get a whole Die set or Die and taps?