Centering Base Plate - Router Forums
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post #1 of 16 (permalink) Old 11-18-2004, 02:28 PM Thread Starter
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Question Centering Base Plate

Hi folks,

I'm just asking for ideas on a situation I have here. I ordered the 7" base plate for my router and finally received it yesterday (by the way I have the Bosch 1617evs router package). I found out that I can center it right over the collet with no problem on my fixed base router when I install the screws. But when I center the same base plate over the collet on my plunge router and install the screws, the center is off. I even turned the 7" base plate clockwise several times to try to align differently and still the same thing. The bit looks like it is 1/32nd of an inch away from the guide on one side of the bit. Dangerous situation. I use a centering cone that came with the router package. The only way that I can get the base plate centered is by not using the screws. I don't know if using double stick tape to attach the base plate to the plunge base would be a good idea. What do you think? Thanks!

Last edited by -Sam-; 11-28-2004 at 10:47 PM.
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post #2 of 16 (permalink) Old 11-18-2004, 03:03 PM
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Do you know if the sub base are interchangeable? It could be that the plunge base takes a different one?

DO NOT try to hold the sub base in place with tape!

If you use the "cone" to position the sub base are the hole far enough away from the mounting locations that you could re-drill them in the correct location?

I don't have one of these routers so I can not tell you first hand what might be wrong other then what I mentioned. Maybe someone that owns one can tell us?????

Ed
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post #3 of 16 (permalink) Old 11-19-2004, 11:04 AM
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The bases for the Bosch 1617 Table mount and Plunge Routers are not the same. The milled pads for both bases are different. You will have to redrill your base plate and have it exactly centered for it to work properly and SAFELY. I believe Bosch sells a plate for the Plunge Router - (although I am not sure).

I agree, TAPE is a very dangerous way of attaching a base plate (or anything else for that matter) to a Router. If it ain't SCREWED - It ain't SAFE.
You will have a choice to drill 4 holes in you plate or three holes depending which milled pads you choose to use.

Center your router base on your base and locate the milled pads you choose to use, use a small nail inserted into the screw hole and center punch the locations for the screws. Being very careful to insure the nail you use is SIGNIFICANTLY smaller that the screw holes or you might strip the threads.

I hope this helps.
cfm

Last edited by cfm; 11-19-2004 at 11:08 AM.
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post #4 of 16 (permalink) Old 11-19-2004, 12:16 PM Thread Starter
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Thanks for your ideas. I also thought about drilling the holes in the base plate. I really don't want to go that route but I'll see what else I can do. Maybe order a different base plate or maybe do the best I can and drill the holes to exact specifications. Thank you both. Later....

Boricua
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post #5 of 16 (permalink) Old 11-19-2004, 07:02 PM
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Quote:
Originally Posted by Boricua
Thanks for your ideas. I also thought about drilling the holes in the base plate. I really don't want to go that route but I'll see what else I can do. Maybe order a different base plate or maybe do the best I can and drill the holes to exact specifications. Thank you both. Later....

Boricua
If you decide to modify the sub base you have you might want to check out:
http://www.routerforums.com/showthread.php?t=395
I made my oun in that post but the infomation in the second post would be good for what you want to do and the "kit" I referenced is only a few dollar and can be used as many times as you wish. Who knows you might decide to make a lot more sub bases in the future.

How ever you decide to go good luck,

Ed
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post #6 of 16 (permalink) Old 11-19-2004, 08:37 PM Thread Starter
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Wow, I'm impressed with all the info you gave. Where can I get that "kit" you mentioned? The one thing that I don't have is a drill press, just a regular drill. I'll get back to you....

Boricua
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post #7 of 16 (permalink) Old 11-19-2004, 10:24 PM
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Quote:
Originally Posted by Boricua
Wow, I'm impressed with all the info you gave. Where can I get that "kit" you mentioned? The one thing that I don't have is a drill press, just a regular drill. I'll get back to you....

Boricua
I have an Eagle catalog sitting here so let me get you started with this.
www.eagle-america.com
I see they have a Bosch 1617-8 listed as part #198-0416k. Take a look and see if that looks like the right "kit". I have seen these in several catalogs so if not try another.

For a list of places to get router stuff:
www.routerforums.com/showthread.php?t=100
look towards the end for a collected list.

To modify the existing plate you don't need a drill press as the center hole and step will already exist. Those center "holes" really need the drill press to make sure they are lined up and drilled true. A drill press makes the other holes easier to do but you could do them with a hand held drill.

Even with out a drill press...... If at a later date you want to do more plates you still can by using the ones they sell with PC style holes, they have these sub-bases as well as mounting plates in many of these catalogs.

Ed
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post #8 of 16 (permalink) Old 11-22-2004, 02:06 PM Thread Starter
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reible, I think I am going to do that. I ordered the kit today. Thanks to you for your knowledge on all this router stuff. I never drilled into phenolic base plates before. So do you or anyone else recommend drilling into this material? I just don't want to ruin a perfectly made base plate. Thanks.
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post #9 of 16 (permalink) Old 11-22-2004, 09:34 PM
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Quote:
Originally Posted by Boricua
reible, I think I am going to do that. I ordered the kit today. Thanks to you for your knowledge on all this router stuff. I never drilled into phenolic base plates before. So do you or anyone else recommend drilling into this material? I just don't want to ruin a perfectly made base plate. Thanks.
Regular twist drills will do fine. Just keep the drill 90 deg. to the plate. You will most likely need a countersink bit as well so if you don't have one now is the time to shop. If you know someone with a drill press it is easier to get the holes in the correct location and straight in but without that you might want to use a square to help guide the drill or have some one spot you in one direction while you consentrate on the other.

Ed
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post #10 of 16 (permalink) Old 11-22-2004, 11:09 PM Thread Starter
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Reible,

I have just the thing for drilling those holes. It's a drill guide I bought years ago which I hardly use. I only use it sometimes when I need to drill that 90 deg. hole. I keep it in the box it came in for storage. Now, I just need to wait for the kit you told me about. Attached is a picture of the guide that I'm talking about. Thanks again for all your help. GOD BLESS!

Boricua
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Last edited by -Sam-; 11-28-2004 at 10:52 PM.
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