Precision Circle Jig
HTML-код
- Опубликовано: 28 сен 2024
- Two versatile, adjustable router circle jigs that offer excellent precision, and do not require unscrewing the base plate. A rugged, low-cost design that is compact, easy to store, and sets up in seconds.
I am not offering plans, because this jig has to be adapted to each router model. However, the video contains all the critical dimensions and enough construction detail to guide a viewer who wants to build a similar jig.
I am not sponsored by DeWalt, Coca Cola, or any other products seen in my videos.
Sources for components:
The plunge router I used: amzn.to/2F47kGG
Ordinary steel rods are widely available in most hardware stores, and from many online sources. The zinc-plated variety resists rust better than the plain steel. Precision milled rods, such as those for CNC machines, are not required.
The threaded inserts I used are a zinc alloy made by E-Z Lok and available online. A package of 100 costs about $15. Many other suppliers offer similar products, and they are available in both metric and imperial sizes. Many hardware stores carry them.
Skate bearings measuring 22mm wide with an 8mm hub are available in many stores that supply skateboards and roller skates, as well as from more than 20 different suppliers online. They are typically about $1 per bearing. Cheap ones will work as well as premium versions for this use. However, the exact inner diameter of the hubs vary from brand to brand, so measure them with a caliper to match them to the threaded rod you are using.
After watching both of your jig videos I'm left wanting for a tour of your shop like a kid standing outside the Wonka factory.
Everyone before me has taking the words out of my mouth. I NEVER COMMENT on any RUclips videos because there is no time for arguments or for me to clarify to someone who took my comment the wrong way. BUT, you sir are an PROFESSIONAL PROJECT ENGINEER / MACHINIST and I am very impressed and will now delete all other subscriptions I had for this type of work. As there is no need to waste time with anyone but the best!.
And that is you sir with all due respect and admiration. Thank you for sharing your experience and knowledge! Your # 1 FAN Hugo Prado.
A pair of very well designed circle cutting jigs! The presentation, and explanation, is superb leaving me in absolute no doubt about how to produce either jig. The graphic animation also worked wonders and all together one of the best jig making videos I have ever seen. Thanks a lot for the effort. P.S. I love the metric measurements as well!
The best router circle jigs on RUclips. I also like the tip of inserting the thread into the timber using the drill press. Thanks
Thanks Patrick for sharing -
After struggling with and finally returning the Milescraft circle guide kit I found your video.
As you mentioned, the second option swivels and held in place by glue rather than a screw that damages the wood, which is phenomenal.
I really appreciated the simple use of the drill press to insure the inserts went in straight. Thanks.
Made the first one last night to use for cutting perfect speaker holes! Thanks for the great idea!
perfect timing, I just bought this plunge router kit from Dewalt. Gonna make this jig!
Great tips for installing threaded inserts! They can also be installed with an Allen key (hex wrench) but keeping the insert vertical is challenging.
Really nice approach here. You are bringing engineering disciplines into woodwork. Also, thanks for the metric :-)
Beautifully engineered (as all your stuff is). I mean, these are far and away the nicest jigs - from any RUclips creator - that I've seen.
I want to make one where the end piece is reversible: circle cutting on one side, edge guide on the other.
I just finished building the simple version, and it's great! Cost about $5 and a little bit of time...thanks for sharing and for making a fine video.
Thanks Patrick, I really apprecciate your clearly way to explain you projects
This is something that I will have to build. I've seen others but this is the best.!
I like your trick using your drill press
Exelent hack with the coke can shim. We used to pack worn swinging arm bearings on our MX bikes back in the late 70’s early 80’s exact same way. Even finer tolerance these days with the paper thin material. I’m embarking on making a large router compass to cut 300/400mm curves out of 18mm exterior ply for a shepherds hut roof for a shipping container 🤘🍀
Excellent in-depth instructions. Thank you 👍👍
Thank you Patrick. Your designs look really good and your excellent video presentation is easy to follow. Well done. 👍
Thank you for a detailed and useful jig. I like and appreciate your way to show and explain how to do it, specially when you show it both in inch and mm which is easier for us living in Europe.
Thanks Patrick, this is an excellent video...I like the way you use your drill press to place the threaded inserts, I've always found getting them square very difficult when done free hand...many thanks.
Thanks for 2 excellent videos of your ingenious and practical jigs!
I love your videos. Fantastic job and very professional. Your directions are direct and clear.
Complimenti per il progetto e per il video molto esaustivo.
Yep, that was great, thanks Patrick.
Outstanding Patrick, thank you! Bob
I love your jig, but I must admit that the more you tube I watch the nicer the jigs I see...
Mr. Sullivan you are a pro!
Brilliant!. Just brilliant! I'll try to make it though it appears well above my skill level.
I love your non-hole trammel. Thanks for sharing ⭐
Brilliant video, clear easy to follow directions and advice, thank you for sharing.
Brilliant, and simple enough! Clear and precise instructions. Thanks for the video. :-)
Stumbled across your channel a few days ago. Definitely sub'd
Your attention to detail & your engineering is very helpful to the mid to upper level craftsman. Thank you for posting 😊
Absolutely fantastic jigs.
You can find 5/16th inch rods in old, discarded printers pretty easily.
Nice design. Simple but very functional.
The best one I've seen so far!!
Thank you for making such a great videos and share your knowledge!!
Wonderful video
Like idea of using drill press to install thread screw inserts 👍
Well done Patrick.
Very nice! I'll definitely use a lot of ideas from these builds when I build my own jig(s).
Very nice Jig
Merci pour vos vidéos
Celle ci va me permettre de réaliser des cercles sur les portes de chambres et façade de placards.
Thanks for sharing your knowledge, it's usefull for eveybody, and specially I.
Excellent. BTW: Those thread inserts ALWAYS go in off center and at an angle by hand. They have a hex inset so cut off the "L" of the appropriate "L" hex wrench and you have a driver that will not slip.
Thank you! Very well explained and useful! Nice work
This video is one of the most professionally produced I’ve seen on RUclips. Thank you.
Excelente amigo! Un diseño extraordinario, Gran herramienta la que ha ha creado.
A fantastic pair of jigs. Cheers, Huw
great method. thanks for sharing
amazing precision
Wow never saw it done that way. Love it i will defintely make one for myself great vid
very usefull and versatilethanks.
Really insightful jig Patrick, thanks for the video! Just discovered your channel and I'm a fan. Hopefully I can produce content as nice as what you are making one day. Really nice 👍
Awesome jig! Thanks.
Briliant instructions !
fantastic!
By drift I mean the bit will move 1/16” or so when it contacts the surface of the work.
Greate job!
Thank you great Video.
This is awesome! Thank you! :)
I’m new to wood work, no demonstration was given after you finished building the first jig so I don’t know how to use it? Fantastic video showing how to make the jig but how about using it?
DuzBee: Sorry I didn't demonstrate better. You fix the pivot point at the exact center of the circle or arc you want to cut. Put a straight bit in the router, set the depth, turn the router on, and rotate the router around the pivot. If you are making something like a curved molding, you can also use bits with a shaped profile.
nicley done !!! Very clean unit, :)
What were the dimensions of the hardwood used in number jig please?
Very well made! Do you have a preferred double sided tape you’ve come to use that doesn’t damage the work surface when removing?
Let say first that woodworking is not in my background, so please ignore my ignorance but how do you "set" the radius or diameter that you want to cut with this fixture?
You increase or decrease the distance between the pivot point and the bit by sliding the router along the steel rods. When the bit is exactly at the mark on your work, tighten the wing nuts to lock it in place.
A very cool and very effective project Patrick! This is one I will have to make. Both versions.
Do you have plans or know where I can get the plans for the cradle you built. About to have another granddaughter soon and would like to make one for her and I like your design much better than the design I came up with....
Ron
Ron: Sorry, I built the cradle before I started making RUclips videos, and did not keep my drawings or my routing templates.
Patrick Sullivan No problem. Thanks for the reply...
Ron
what is the blue thing on the drill bit @3:17 (looks like painters tape?)
Painter's tape makes a quick and easy depth gauge.
Very good! .. do you have any ideas for making a jig for the Dewalt router that cuts very small holes, say 100mm or less, but also provides fine adjustment as I need the holes to be exact for a tight fit? (I'd be keeping the sheet/hole part not the circle offcut). I'm struggling to come up with something that would provide the fine adjustment.
wforl: I do have some ideas for making the jig you suggest. For circles this small, the pivot pin must be inside the router base. You could simply drill a tiny hole in the polycarbonate base at the required radius, and revolve the router around a brad in the workpiece. However, this easy solution does not offer micro-adjustability. A jig with an adjustable pivot inside the base requires a sliding apparatus under the router base, and a method for advancing or retracting the pivot in tiny increments. I have given some thought to such a device, and if time permits, I hope to experiment to find a good working solution. It may not be in time for your project, however. Sorry.
Thanks for the suggestions!
Does anybody read a comment after five years? Well thanks anyway.
Just love the improvised internal flap slander - genius - definitely adding that to my bag of tricks👍. Loved the circle jig too 😃👍
So cool....and buttery smooth, I'm still laughing.
Thank you Sir for this amazing video on these well put together jigs. The best I have ever seen. I am a new subscriber. Hoping to see more wonderful jigs coming from you in the near future.
Thank you🛠️
Great videos Patrick, beautifully, designed, executed and finished.
Wow! I made something similar using wood BBQ skewers (I'm a cook by trade) glued into a crossbar instead of your through metal rods. I adjusted the circumference at the router, not the pivot side. This is much more accurate and easy to adjust. Thanks!
Very good quality video with excellent explanation and clear indication of the drawings.
I never seen any video so good in explanation , so clear and so good. thank you so much Sir Sullivan , subscribed .
How I cut metal rod tends to help A LOT with locating the center of the rods (to gauge how far apart the holes need to be.)
1.) use a pipe cutter (the kind that you clamp and turn around the pipe like a can opener) and get as deep a score line as I can.
2.) put the end of the rod in an electric hand drill. If its long then you may need to prop up the other end.
3.) use the drill to spin the rod while sawing it at the score line. Since your setup is like a makeshift lathe, your cut is always going to end in the center of the rod. A tiny nib will be left in the dead center if done right.
One word: GENIUS!!
Definitely something that is easy enough to build and get accurate results. Is there an adaptation that would allow for small holes (i.e. pivot pin near the router blade)?
Muy Buen Video.
*¡¡¡ BUEN TRABAJO !!!*
You EXPLAIN SO WELL WAITING TO SEE MORE HAVEN’T CHECKED BUT WILL YOU MAKE A SLIDING ANGLE GRINDER JIG OR DRILL PRESS JIG
If anyone is curious, the Makita trim router RT0700 also uses 8mm rods (some of the official attachments come with them), and the plunge base has rod spacing of 84mm on centre with an offset height of 10mm to centre, exactly like this DeWalt.
I own the Makita RT0700 and love it. It's one of the best trim routers out there.
Thanks for the info. Very helpful.
I really like how you handle metric and imperial measurements. It's seamless and practical.
Nice! Now i can make round cyrcles without a houle in The middle 👌🏼👌🏼
My compliments for you're idea's and video editing
Excellent idea, and nicely executed too.
In hardwoods, I find threaded inserts aren’t necessary. Just drill and tap.
Great video Patrick. Thankyou
gets iced for using a center drill instead of a spot drill by RUclips machinists
excelente vídeo con que programa hizo la animación de los agujeros en la madera con las tuercas y arandelas me gustaría saberlo para aprender hacer ese tipo de presentaciones agradecido de antemano
PLEASE PLEASE TELL ME WHAT KIND OF DRILL BIT THAT COUNTERSUNK THE HOLE I HAVE SOME BUT NOT THAT GOOD
👍👍👍👍👍👍👍👍👍👍💐💐💐💐💐💐💐💐💐💐💐
Saved to my "tool builds" folder. Thanks again. SUB'd.
Thanks for the tips re inserts very valuable
Hint ... use a piece of allen key in drill press to drive inserts in
Phenomenal
Clever but simple jigs and excellent video production!
I like the method for making a block that mounts to the rods on the router, maybe I can adapt this so I can make a jig that allows me to run my router on my track saw track?
Excelente JIG. Parabéns 👍🏻👏🏻👏🏻👏🏻
To know what sort of brain we're dealing with, a couple years ago I built a cat tree that needed to be broken down to 4 sections (otherwise it wouldn't fit through a door), and in my mind there HAD to be some sort of hardware that would allow me to do this. I came up with the idea of an insert nut (without the terminology) and then started looking online. When I saw an insert nut, I was kind of relieved I didn't have to invent it.. lol. Though on the other hand, inventing it would have been cool too. Since then I've used them a fair bit. Super handy.
This is fantastic! I cant wait to try and build one of these !
wow! absolutely helpful! thanks for sharing Patrick!