questions about sub bases for use with PC template guides - Router Forums
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post #1 of 15 (permalink) Old 07-27-2015, 12:43 PM Thread Starter
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Default questions about sub bases for use with PC template guides

Hey,

Last year sometime I got my first set of Porter-Cable style guide bushings. I also bought a new sub-base plate for use with the bushings.

I have since tried a second base plate for two reasons. First, the plate (which was clear acrylic, which I really like) was smaller than the footprint of my router casting. Second, the hole that the guide bushing sits within was too large about about 1/32. Every time I use a bushing or need to re-tighten the nut, I need to use the centering cone. I hate this.

The first base plate was MLCS and the second was from Jasper tools. They were nearly identical.

Question to each of you: do your guide bushings shift around in your base plate? How much slop is there? Perhaps my set of guide bushings are of lesser quality? (they are shop-fox)

I have access to a laser cutter and cnc router. Is it worth it to mill my own plate from 1/4 inch clear plastic? I would mill it so the bushing has NO slop. What do you guys think?

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post #2 of 15 (permalink) Old 07-27-2015, 01:14 PM
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Phillip, there should be no slop in the fit. Maybe take your sub base plate to a store and try the fit of a different brand of guide bushing?

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post #3 of 15 (permalink) Old 07-27-2015, 02:56 PM
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If there is slop in the mounting holes of the plate then you'll need some room in the center hole to adjust the bushing using that centering cone. Or at least use the centering cone when you mount the plate and then have no slop for bushings in the center hole. If the router's base casting isn't perfect then you still may need some slop in that center hole so you CAN get the bit centered.

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post #4 of 15 (permalink) Old 07-27-2015, 03:23 PM
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Quote:
Originally Posted by phillipdanbury View Post
Hey,

Last year sometime I got my first set of Porter-Cable style guide bushings. I also bought a new sub-base plate for use with the bushings.

I have since tried a second base plate for two reasons. First, the plate (which was clear acrylic, which I really like) was smaller than the footprint of my router casting. Second, the hole that the guide bushing sits within was too large about about 1/32. Every time I use a bushing or need to re-tighten the nut, I need to use the centering cone. I hate this.

The first base plate was MLCS and the second was from Jasper tools. They were nearly identical.

Question to each of you: do your guide bushings shift around in your base plate? How much slop is there? Perhaps my set of guide bushings are of lesser quality? (they are shop-fox)

I have access to a laser cutter and cnc router. Is it worth it to mill my own plate from 1/4 inch clear plastic? I would mill it so the bushing has NO slop. What do you guys think?
Do you have a "wavey" washer for the locknut? If you don't the nut will sometimes have a tendency to loosen. If your set didn't come with one, then do a search and buy a couple. It will make a world of difference.

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post #5 of 15 (permalink) Old 07-27-2015, 03:34 PM
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I think you guys are missing the point. Guide bushings are supposed to fit securely in the hole with no slop. Sub base plates are adjusted once if made that way but most are factory centered.
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post #6 of 15 (permalink) Old 07-27-2015, 03:48 PM
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Hi Phillip

Check with Pat Warner (a member of this forum). I am sure he could help you with your problem.

Phone number 760-747-2623 or email [email protected]
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post #7 of 15 (permalink) Old 07-27-2015, 09:07 PM Thread Starter
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I think you guys are missing the point. Guide bushings are supposed to fit securely in the hole with no slop. Sub base plates are adjusted once if made that way but most are factory centered.
Yeah I'd really like to center the plate once and be done. I like the clear plastic and I plan to use this plate as my plunge base even when not using bushings.

Is the wavy washer some sort of lock washer?
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post #8 of 15 (permalink) Old 07-27-2015, 09:17 PM
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they are called wavy, torsion or spring washers....
look like so...

.
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post #9 of 15 (permalink) Old 07-27-2015, 09:49 PM
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Peachtree is one supplier of spring washers I'm sure there are others
Mike's right, you center the base plate not the bushing
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post #10 of 15 (permalink) Old 07-27-2015, 09:58 PM
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Ace, Lowes and Home desperate has them...

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!!!
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