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round-cut-router-jig-query This quick jig is perfect for a one-off use and can be built in about 20 minutes. Simple but accurate. It's easy enough that you could make it every time the need arises.  You can’t put a square tabletop into a round hole, so here’s a circle cutting www.- or something like that. This quick jig is perfect for a one-off use and can be built in about 20 minutes. Simple but accurate. It's easy enough that you could make it every time the need arises. But, it’s sturdy enough to last. I recommend using a plunge router with depth adjustment with this jig. It makes the process easier, but it’s not required. If you use a fixed base router you’ll spend extra time drilling a hole, setting the router down into it, and removing it to adjust the depth after every pass. A pictorial guide to help you construct a router jig capable of creating perfect compound-radius fretboards. Make sure you check the videos at the end!  This design opts to have the fretboard remain static while the Dremel (or router) performs all the movement. This certainly isn’t the be-all-end-all of compound radius jigs – some other options are posted below. If you prefer to do things manually, you may appreciate this guide for creating radiused sanding blocks! One of the many methods of compound-radius routing. Your measurements don’t have to be exactly as they are in the instructions here because you’ll want to adjust lengths and heights of pieces so it can fit your needs. Router Circle Cutting Jig | Adjustable Circle Cutting Jig for Trim Router.  Фрезерование разделочной доски и паза по кругу, milling round groove in a cutting board.

This instructable will show how to make an accurate and easy to use jig for cutting perfect circles with a router. There are many pre-made circle cutting jigs on round cut router jig query market, but they are fairly expensive, and many of them don't have a very rounc maximum radius. Qurry of them also rely on a series of holes to control the size, which can be a problem if you need a very precisely sized circle that happens to be in between the sizes of two of the holes.

I will show how I made a precise circle cutting jig using nothing but scrap plywood, and a few nuts and bolts. This basic plan can be modified to make accurate circles of almost any size.

Disclaimer: Please practice shop safety, especially when working with power tools. Take all neccesary safety precautions, and don't use any tools or procedures you're unfamiliar with or uncomfortable round cut router jig query. The base material could be made of any flat sheet good material, but preferably MDF or cabinet grade plywood.

Cut the sheet goods to " wider than your router base, and " longer than round cut router jig query largest radius you plan to cut. It will allow me cut circles up to about 46" in diameter. Use a pencil to mark the screw mounting holes, the center hole, and trace around the outside diameter. A plunge router is preferable for this, but not neccesary.

I already had the fixed base router qeury will be used in this jig out, and didn't feel like taking my plunge router out of my router table. Unplugging the router anytime you install or change bits is a good safety habit to practice. Clamp the base to a stable work surface, like a table suery workbench, with the side you will mount the router to face down.

Then clamp a straight edge scrap of plywood in this eouter to the base to act as a fence, or guide. Line up the straight edge with the outside edge where you marked the baseplate, and parallel to the length of the base. This will ensure that the slot will be centered in the base.

Using the straight edge as a guide, route a slot between the mark 1" from the baseplate, jiy the mark 1" from the other end of the base. If as you look at it, the fence is to the left of the router, start at the end closest to you. If the fence is to the right of the router, start on the end furthest from you. This will pull the router into the fence, which not only makes it easier to make a perfect slot, but is also safer. With the fence still in place, rout the smaller slot the in the same way as the first one.

Drill holes for the mounting screws, making them just a little bigger than the diameter of your screws. Flip the base over, and using the holes as a guide, trace the baseplate on this side too. Choose quedy side you want to moun the router on, and chamfer the mounting round cut router jig query on the opposite side. You want the chamfers just deep enough that the screws will sit beneath the surace.

Drill or rout out the center hole. It just has to be slightly bigger than the largest router bit you might use. A hole saw is probably best for larger round cut router jig query, but I used a twist bit, and it caught and made a pretty messy hole. It won't really effect anything other than aesthetics, but next time I'll take the time to get the correct bit out.

I did clean up the hole a little with the router later. The mounting screws are most likely much too short to reach all the way through the base material. We could buy longer mounting screws, but unless you have a set of really round cut router jig query router bits, the thickness of the base may limit the depth of cuts you can rouns with the finished jig. To solve both problems, I reccomend routing a recess in the base for the router to sit down in. After clamping the base to a work surface with the router mounting side up, rout out the baseplate area, using the line you traced as a guide.

It's easiest to start at the center and work around the the hole clockwise, sneaking up on the final size with a few light passes. Now the baseplate can be removed from the router, and the router can be installed in the round cut router jig query using the baseplate screws.

Make sure all the screws sit flush with the bottom suface of the jig so that they won't catch on anything. While the easiest round cut router jig query to do is buy a t-handle or star handle for jigs, but I'm too cheap to do round cut router jig query, so I make my own. It takes a piece of jjig wood, a t-nut which costs just a few cents, and takes just a few minutes to make. I make them in bulk to use in all of my jigs, and I won't qery into the process here.

It's easy enough to simply cut out a shape you like, drill a hole in round cut router jig query center to accept the t-nut, and hammer it in place. I didn't have any threaded rod, so I just cut the head off of a 3" bolt. Screw the nut onto the center of the threaded rod, and then place the washer on. Slide the portion above the washer up throught the slot in the base, and then screw the handle on to the top. Alternatively, if you have access to a metal lathe as I do, you can cut the threads off one end of the threaded rod, making a smooth post of a specific size.

That way you can use a drill bit that matches the specific size, and always be sure to have a nice tight fit. The threaded rod with an appropriate sized drill bit should work well enough for most applications though. This step is entirely optional, but I thought it might make it slightly easier to use. The base had quite a bit of uneccesary wood, so I decided to cut it off, and round the corners.

I also slightly beveled rouher edges on the bottom side with some sandpaper so that they wouldn't catch on anything as they slide around the circle. The first step to using it is setting the post height. Measure the thickness of the material you'll be cutting a circle in.

Adjust the querry on the post so that it sticks out slightly less than the material is thick. Mark the center of the planned circle, and drill a hole that the threaded rod post will fit in snugly. Set the post at the desired distance from the router bit, and tighten the handle on top to lock it in place. If you are cutting all the way through round cut router jig query material, make rohter to hang the portion being cut off the table, and keep rotating the material periodically during the cut to keep from cutting the table.

You could round cut router jig query put a sacrificial piece of scrap underneath the material instead. It's generally safer and easier to cut outer edges of circles in a counter-clockwise direction, and inside edges clockwise.

If you don't want a small hole in the cener of whatever you're cutting, you can use a sacrificial piece on top. Drill a hole in a piece of scrap, and use doublesided tape to secure it to the workpiece with the hole at the center of where you want to cut the circle.

Then just increase the depth of cut qeury the thickness of the sacrificial piece, and cut as usual. Alternatively, if round cut router jig query hole would be acceptable on the underside, but not on top, you can drill the hole only part way through the material, and cut from the bottom. Have fun, and be safe! I have the same fixed-base Porter Cable router and made a circle-routing jig for it.

What I'm trying to sort out is how to start the cuttingdo you have to loosen the router height adjustment while it's running and rotate it down to the depth you want and re-tighten? I probably should just use my plunge router, I guess! Reply 7 months ago.

Reply 2 years ago. Don't ever loosen or attempt to adjust the depth while it's plugged in, let alone running. A plunge router is safer, but it can be done easily without one. Set the depth with the router un-plugged, plug it in, turn it on while holding it securely it will jump a bit when you turn it onthen slowly lower the bit into the workpiece while keeping the side of the baseplate against the fence. Tip 2 years ago.

One very important thing to round cut router jig query is to take into account the thickness of the cutter bit you are using, and compensate for half of that in your finished circle diameter.

This is great! I came up with a really similar jig on my own. Good to see round cut router jig query a quert solution :. Once you tighten the nut to hold the desired size of the circle, it seems like you will be tightening the fixture to the work piece round cut router jig query it hard to go around.?

Reply 5 years ago. What none of the pictures show is the post that sticks down from the jig under the t-handle. When you tighten the t-handle you are only tightening the post into position. The post then will drop into the hole you drill in the center of round cut router jig query workpiece and allow the jig to freely rotate round cut router jig query around it.

Nice looking jig. Having a good jig is the secret round cut router jig query most of my successful projects. I use this circle cutting technique frequently, but I just take a long strip of fiberboard and set it up for a fixed radius. I just posted my Cardboard Ball Chair www. If I cut a round cut router jig query of circles of various sizes I'd certainly make a jig like this. The all-thread allowed for very precise adjustments and long radii. I used this touter make concentric rounded cu in an old wood door.

The resulting pattern made the door from a very junky rluter to something that looked like art. I love using radius techniques whenever possible. You can do a lot with them. By tashiandmo Follow. More by the author:. I would think that most of not all of these materials could be found in most workshops. The cost to purchase these items would only be a few dollars.

It does of course assume that you have a router to use the jig with. Make a mark on the center line one inch away from the outer edge of the baseplate.

Sep 03,  · It's a simple jig made out of a small scrap of 1/4 inch or so MDF or similar. A 90 degree notch and small round hole are cut out to "trap" the disk, and the setup is used on a router table. Extremely easy to make and use. The hole is for the router bit and the notch is . Jun 19,  · If you use a fixed base router you’ll spend extra time drilling a hole, setting the router down into it, and removing it to adjust the depth after every pass. Perfectly doable, just inconvenient. Making the Jig. I used a scrap piece of 3/4” plywood that happened to be the perfect size to cut this jig . Dec 09,  · Bob Rosendahl, a true master of jig design developed a round tenon cutting jig. While this is used for table legs the same design would work for your purposes. No plans are available for this but it can be viewed in episode of the Router Workshop TV show.

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