The Jasper will come setup for the 1/4" bit ( shank and cutting diam.) But once you get it I suggest you drill the hole out to 3/4" ID diam. or 1" diam. so you can use the brass guides with your Craftsman router and the Jasper..
This will let you use the bigger bits plus the cord will not wind up around the router , plus you will not need to screw the Jasper to your router when you want to use your Jasper..just drop the guide in the hole and cut out ring or hole with a 1/4",3/8" or 1/2" bit. 9 Piece Router Template Guide Set
Note,, very easy to drill it out on dead center,, chuck up a 1/4" drill bit in the drill press push the bit down in the hole, lock the Jasper to the top with some plywood scrap under it, now chuck up a 3/4" bit and drill it out..
Note====the 3/4" brass guides are a bit to long to use it on the Jasper you will need to grind/cut it down to 1/4" long stem in order to use it in the Jasper..but that's not a big deal..
Here's a very easy jig you can make if you want to cut it off on the band saw.. http://www.routerforums.com/jigs-fix...ss-guides.html
I’m new to this forum and woodworking in general so I hope my questions aren’t too vague. If you need more info please ask.
These questions could be in a couple of different forum categories so I hope I’m in the correct one.
I just bought a Craftsman 17543 router from Sears and will be using it to create speaker spacer rings for some new car audio speakers. I also just ordered a Jasper Model 274 combo kit that is on the way.
Here’s some info about the project. These rings will need to have an O.D. of 7 11/16” (to fit into the space on the inner door panel) and an I.D. of 5 ¾” (so the speaker will drop into the ring). These spacer rings are used to push the new speakers outward to clear the door glass. I’ll be using ¾” MDF for these rings. I’ll actually be gluing two of these rings together to create a 1½” thick spacer ring.
Ok, here come the questions. The downloaded Jasper manual states to use a ¼” router bit.
Is that the shank dia. and the cutter dia.?
I found this router bit on the web and it appears to be what I need:
Freud 04-108 Straight Router Bit, Carb. Ht.1", OD 1/4"
Shank...1/4" Overall Diameter- 1/4" Carbide Height...1" Overall Length...2-1/2"
When using a router bit do I attempt to cut the entire ¾” MDF thickness in one pass or should I do it with two or more passes?
I’ll also need to coat the MDF with something to inhibit moisture since these rings will be inside the door panel. I live in the Pacific Northwest so moisture is an issue. I’m thinking of using varnish but I’m open to suggestions.
Is there another wood that I could use that would work well for this application?
Thanks in advance for any advice!