Router Misalignment? - Router Forums
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post #1 of 26 (permalink) Old 03-27-2020, 11:08 PM Thread Starter
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Default Router Misalignment?

Hello all, new to this forum. Hope all of you are safe and coping well with the Covid19 pandemic.
Had an issue while routing a channel on a piece of fully dressed Red Oak which is 24" long and 2.5" wide. Using a 1/4" bit to cut a channel about .5" from the left side ( closest to my hand in picture ) end to end using a Ryobi Variable speed plunge router fully secured to a custom made jig. I am kind of beside myself as to how the 1/4" cut could be off this much. I used a custom made jig with a fence to guide the router on the first side ( where my thumb is in the picture ).
Because this is Red Oak which can be a bugger at times I made three passes, gradually cutting deeper to avoid chipouts, burns etc. When I flipped the stock over to cut the channel out on the opposite side you can see a drastic difference in placement. I had to custom build the jig exclusively for the dimension of this stock so it did not shift or move. As you can see the channel to the left where my index finger is not as deep which was the second side, and it was noticed after the first cut on that side which pretty much halted this initiative.
My Router was snug against the fence while making the cutting pass on both sides. As you can imagine I am beside myself, any suggestions? Please tell me this is not a freak occurrence as I am seriously doubting myself here, I must have done something wrong but what? I mean placement should be identical once the stock is turned over unless my brand new 1/4" bit is made of rubber or something. I am using a Ryobi Variable Speed Plunge Router which is brand new as well.
Any suggestions would be greatly appreciated
Cheers
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post #2 of 26 (permalink) Old 03-27-2020, 11:44 PM
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20cc; Hey, welcome!

As you've already discovered you can post pics of your subject as long as they're on your own computer...no pics or links off the 'net until you've made 10 comments.
But having said that we need to see pics of your jig.
In the meantime, try placing your router/ jig back on the original side and see if it still lines up.
If I had to take a wild guess I think you might have done the 2nd side of the material without restoring the router position back to the location of the very first cut on the original side, ie you started the 2nd side using the position of the final cut (of the first side). Does that sound possible?
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post #3 of 26 (permalink) Old 03-28-2020, 12:48 AM
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Wouldn't an edge guide have been a simpler approach?
https://www.ryobitools.com/products/...s/router-guide
That one is about as basic as they get...no micro adjustments, but it'd get the job done.
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post #4 of 26 (permalink) Old 03-28-2020, 02:02 AM
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welcome to the forums N/A..

I believe Dan has found your cause and cure....

plan ''B''....

do you own a tablesaw???....
if so, repair the grove that is out of alignment and recut it using the TS...
a FTG (Flat Top Grind) saw blade will be the blade to use...
i will give you a flat bottomed and square shouldered grove...

.
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post #5 of 26 (permalink) Old 03-28-2020, 02:13 AM
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I don't know if it's my imagination but it looks like the bit went in at an angle.
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Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.
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post #6 of 26 (permalink) Old 03-28-2020, 02:43 AM
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Quote:
Originally Posted by Cherryville Chuck View Post
I don't know if it's my imagination but it looks like the bit went in at an angle.
as in the groove isn't parallel to the edge???
or as in the groove isn't 90° to the face???
Both???

.
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This would have been the week that I'd have finished chewing thru the restraints...
If only new layers hadn't been added....

Stick....
Forget the primal scream, just ROAR!!!
"SNORK Mountain Congressional Library and Taxidermy”
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post #7 of 26 (permalink) Old 03-28-2020, 08:10 AM
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Unless you can rectify this issue shortly, I would return that router and spring for something a little better - DeWalt, Bosch, etc. You still need to center the shaft to the base with a centering tool to get/keep accurate measurements. Hope you get it going!

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post #8 of 26 (permalink) Old 03-28-2020, 10:12 AM
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Welcome to the forum
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post #9 of 26 (permalink) Old 03-28-2020, 10:50 AM
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Quote:
Originally Posted by Stick486 View Post
as in the groove isn't parallel to the edge???
or as in the groove isn't 90° to the face???
Both???

.
If you look at the deepest groove it appears to have a "bat ear" in one bottom corner and a chamfer in the other. I don't know how you can do that with a straight bit.
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post #10 of 26 (permalink) Old 03-28-2020, 11:49 AM
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Quote:
Originally Posted by Cherryville Chuck View Post
If you look at the deepest groove it appears to have a "bat ear" in one bottom corner and a chamfer in the other. I don't know how you can do that with a straight bit.
I think the bat ear is tear out and the chamfer is a splinter..

This would have been the week that I'd have finished chewing thru the restraints...
If only new layers hadn't been added....

Stick....
Forget the primal scream, just ROAR!!!
"SNORK Mountain Congressional Library and Taxidermy”
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