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Bosch router guide adapter for threaded guides - problem

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Forum topic by smozes posted 08-11-2016 01:32 AM 1060 views 0 times favorited 5 replies Add to Favorites Watch
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smozes

8 posts in 165 days


08-11-2016 01:32 AM

I have the Bosch RA1100 adapter for older Porter Cable style threaded guides. I got a cheap starter set by ShopFox. There’s too much play between the the adapter and bushing. I haven’t used these guides before so I can’t tell if the guides or the adapter are defective. Or maybe this gap is normal. Hand tightend it moves. Am I missing something?


5 replies so far

View OSU55's profile

OSU55

1062 posts in 1455 days


#1 posted 08-11-2016 12:01 PM

I have the same adapter and guides, for a 1617evs, and don’t have any problems. Are all of the guides loose in the adapter, or just the one you checked?

View bigblockyeti's profile

bigblockyeti

3668 posts in 1186 days


#2 posted 08-11-2016 12:23 PM

Do you know anyone else with guide bushings that you could install in your adapter to see if different ones allow the same movement?

View pintodeluxe's profile

pintodeluxe

4859 posts in 2279 days


#3 posted 08-11-2016 04:17 PM

I put an aftermarket sub-base on my Bosch router. It directly accepts P.C. style bushings without need for the adapter. My guide bushings fit snugly inside the new base.

Available at Rockler http://www.rockler.com/guide-bushing-router-plate

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

View greenacres2's profile

greenacres2

251 posts in 1633 days


#4 posted 08-11-2016 06:17 PM

PC 690 sub base plate is a direct fit on the 1617 fixed base—the 3 hole pattern is already tapped in the Bosch base, you’ll see it when you remove the 4 hole Bosch plate.

I use both a Whiteside zero clearance and Ridgid PC style bushings in my Bosch adapter, and they both fit quite nicely, not a noticeable gap.

earl

View smozes's profile

smozes

8 posts in 165 days


#5 posted 08-12-2016 05:41 AM

I received the Bosch made guides, which included another adapter. The two RA1100 adapters are identical, at 1.370” ID. The ShopFox threaded guides are 1.354” OD, so about 1/64” difference.

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