Jasper 400 Circle Guide - Router Forums
 
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post #1 of 10 (permalink) Old 05-25-2010, 12:53 PM Thread Starter
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Default Jasper 400 Circle Guide

I'm thinking of picking up a 400, primarily for making offset rings. It also looks to be a good tool for making bushing ready base plates. While circle guides are relatively easy to make in the shop, the $20 price tag doesn't seem worth the effort to try to duplicate the capabilities.
I'm pretty sure it will fit my Hitachi M12VC, does anyone know if it will bolt up to a Freud 1700? Any suggestions/input would be appreciated.

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post #2 of 10 (permalink) Old 05-25-2010, 01:57 PM
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Hi John

You don't need to bolt it up to your router just drill out the center hole to 3/4" ID and just use a brass guide, in that way it will fit just about any router you have..

I will say it's best not to bolt it up ,they have a small down fall with the Jasper jig ,the mounting holes breaking out very easy, see the reviews on Amazon..

======



Quote:
Originally Posted by jschaben View Post
I'm thinking of picking up a 400, primarily for making offset rings. It also looks to be a good tool for making bushing ready base plates. While circle guides are relatively easy to make in the shop, the $20 price tag doesn't seem worth the effort to try to duplicate the capabilities.
I'm pretty sure it will fit my Hitachi M12VC, does anyone know if it will bolt up to a Freud 1700? Any suggestions/input would be appreciated.



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post #3 of 10 (permalink) Old 05-25-2010, 04:20 PM Thread Starter
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Originally Posted by bobj3 View Post
Hi John

You don't need to bolt it up to your router just drill out the center hole to 3/4" ID and just use a brass guide, in that way it will fit just about any router you have..

I will say it's best not to bolt it up ,they have a small down fall with the Jasper jig ,the mounting holes breaking out very easy, see the reviews on Amazon..

======
Hi Bob - Thanks for the input. Just may be the show-stopper though as the main reason I'm wanting it is to make offset rings. 3/4" hole would wipe out the 1" capability from the looks of it. I was also thinking it could be used to make base plates to take the large guides

John Schaben

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post #4 of 10 (permalink) Old 05-25-2010, 05:50 PM
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Hi John

That's true, I have made my share off sets rings and base plates and it's best to use Forstner Bits for that job,, the center hole must be dead on plus the pocket hole for the guide must be dead on... for the PC type and the OakPark type plus it's best to make base plates square not round pie is sq.not base plates

But I'm sure you can use the Jasper 400 to make them but I think it will be a hit or miss thing most of the time..sq.ones are so easy to make draw a X and drill the holes out on the center of the X mark.

Off set rings, once you have the center hole drill out drop it on a dowel pin (1" or 1 1/2" with a 1/8" pin hole in the center for the Jasper ) stick it to a scrap stock and use the Jasper to cut the rings out..

=======

======




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Last edited by bobj3; 05-25-2010 at 06:01 PM.
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post #5 of 10 (permalink) Old 05-25-2010, 09:18 PM Thread Starter
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Originally Posted by bobj3 View Post
Hi John

That's true, I have made my share off sets rings and base plates and it's best to use Forstner Bits for that job,, the center hole must be dead on plus the pocket hole for the guide must be dead on... for the PC type and the OakPark type plus it's best to make base plates square not round pie is sq.not base plates

But I'm sure you can use the Jasper 400 to make them but I think it will be a hit or miss thing most of the time..sq.ones are so easy to make draw a X and drill the holes out on the center of the X mark.

Off set rings, once you have the center hole drill out drop it on a dowel pin (1" or 1 1/2" with a 1/8" pin hole in the center for the Jasper ) stick it to a scrap stock and use the Jasper to cut the rings out..

=======

======
Hi Bob - I was thinking I would be doing them the other way. Put the 1/8" hole in and use the Jasper to cut the OD and, whenever possible, use the 1" guide cut off the same hole. Resort to the drill press if I needed to use a smaller bushing.
As far as the base plates go, I was thinking of doing the bolt pattern first and with the blank subbase attached, plunge the 1/8" guide hole for the Jasper. I don't mind square, they easy

John Schaben

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post #6 of 10 (permalink) Old 05-26-2010, 10:36 AM
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Hi John

That will work But I will say using the holes saws work the best for making off set rings (magic donut)...you can get a set or two from HF at the right price that will do the job.. if I recall each set for about 8.oo bucks that should cover all the sizes you will want to make.. they are not hvy. duty but they will do the job quick and easy...

Search results for: 'hole saw'

=======



Quote:
Originally Posted by jschaben View Post
Hi Bob - I was thinking I would be doing them the other way. Put the 1/8" hole in and use the Jasper to cut the OD and, whenever possible, use the 1" guide cut off the same hole. Resort to the drill press if I needed to use a smaller bushing.
As far as the base plates go, I was thinking of doing the bolt pattern first and with the blank subbase attached, plunge the 1/8" guide hole for the Jasper. I don't mind square, they easy


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Last edited by bobj3; 05-26-2010 at 10:51 AM.
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post #7 of 10 (permalink) Old 05-26-2010, 02:25 PM Thread Starter
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Originally Posted by bobj3 View Post
Hi John

That will work But I will say using the holes saws work the best for making off set rings (magic donut)...you can get a set or two from HF at the right price that will do the job.. if I recall each set for about 8.oo bucks that should cover all the sizes you will want to make.. they are not hvy. duty but they will do the job quick and easy...

Search results for: 'hole saw'

=======
Hi Bob, Yeah, I picked up the $10 one (18 piece) awhile back. I think part of my reluctance about the drill press is that it's a HD Ryobi special. Don't have a good way to check runout so I don't know where that's at. Setting depth is kind of a crap shoot also.... doesn't give me a warm fuzzy about the accuracy of the thing.
I'm guessing that the Jasper is acrylic, not polycarbonate, which would explain failures of the mounting holes from overtorquing. I think I'll probably go ahead and get the Jasper. Just be careful torquing it down.

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post #8 of 10 (permalink) Old 05-26-2010, 03:25 PM
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Hi John,

Not meaning to dissuade from the Jasper but, you might want to take a look at this one.

http://www.sears.com/shc/s/p_10153_1...scraft&prdNo=3

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post #9 of 10 (permalink) Old 05-26-2010, 05:43 PM Thread Starter
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Hi John,

Not meaning to dissuade from the Jasper but, you might want to take a look at this one.

http://www.sears.com/shc/s/p_10153_1...scraft&prdNo=3
Hi Ken, thanks for the link. Problem is that I want to use it for offset rings which means I will need diameters in the 1-3" range. Jasper 400 is the only one I've run across that meets that requirement.
I've thought about hole saws but they are spec'd to the OD, plug cutters are spec'd to the ID (also expensive), Forstner is also spec'd to the OD and I don't think circle cutters are quite precise enough.....at least not without a bunch of tedious setup. Guess that's where I'm at right now, looking at it like a tool to make more tools.

John Schaben

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post #10 of 10 (permalink) Old 05-26-2010, 07:18 PM
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Hi John

Here's a little trick I use to make off set rings, clamp the stock to the drill press table top. drill the 1" or 1 1/2" hole with the Forstner bit than chuck up the hole saw ,(without unclamping the stock) you want the OD to be and cut out the ring...very easy and very quick..



=========

Quote:
Originally Posted by jschaben View Post
Hi Ken, thanks for the link. Problem is that I want to use it for offset rings which means I will need diameters in the 1-3" range. Jasper 400 is the only one I've run across that meets that requirement.
I've thought about hole saws but they are spec'd to the OD, plug cutters are spec'd to the ID (also expensive), Forstner is also spec'd to the OD and I don't think circle cutters are quite precise enough.....at least not without a bunch of tedious setup. Guess that's where I'm at right now, looking at it like a tool to make more tools.


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Last edited by bobj3; 05-27-2010 at 11:10 AM.
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