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Thread: 20mm Plug Cutter
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2nd November 2017, 05:47 PM #1GOLD MEMBER
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20mm Plug Cutter
Hi all, I want to cut some thin pieces of timber about 4mm, into circles with a diameter of 20mm or close. Plug Cutter sets seem to go up to 16mm. Cutters that I want seem to cost a fortune.
Any other suggestions on how to cut these perfect circles. (no hole in centre).
Paul
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2nd November 2017 05:47 PM # ADSGoogle Adsense Advertisement
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2nd November 2017, 05:50 PM #2
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2nd November 2017, 06:10 PM #3GOLD MEMBER
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Turn short lengths on a lathe to 20mm dia, then slice up to 4mm.
Or perhaps you may be able to buy 20mm dowell (if you don't have a lathe) and cut that up into slices.
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2nd November 2017, 06:21 PM #4.
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2nd November 2017, 06:33 PM #5GOLD MEMBER
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Make a template to use a copy ring on a router, the hole size will depend on your available cutters and copy rings, stick the material to a board with double sided tape so that the plug won't move when cut free and route away.
The template you can make with a hole saw or if you need a specific size a hole routing jig.
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2nd November 2017, 08:19 PM #6GOLD MEMBER
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Yep, or you can use a hole saw to cut a template in a reasonably thick piece of timber, retract the centering drill then clamp the template to your stock to cut with the same hole saw. If you have the right hole saws you should be able to get pretty close. If the stock you are using to cut the circles is thicker you can then rip the face off your stock on the table saw to release the rings.
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2nd November 2017, 08:29 PM #7Member
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If you have a drill press, go with a hole saw minus the centering drill bit. So long as the hole saw is tightened onto its thread, it shouldn't move, or atleast it doesn't for me.
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2nd November 2017, 08:36 PM #8SENIOR MEMBER
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Came here to say this. I do the exact same thing.
Just remember, hole saw is outside diameter. Also, drill test in scrap first because the can move around a bit. I hold the timber in a vice, usually you dont need to clamp it down, but it might help with tolerances though.
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2nd November 2017, 08:48 PM #9GOLD MEMBER
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Plenty of them(20mm plugs) on ebay and they are dirt cheap, https://www.ebay.com.au/itm/Wood-Ear...TOgNTQc-XiNYTA
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2nd November 2017, 10:10 PM #10.
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I've used aldav's method a few time with success, provided the template and the work piece are clamped together you don't even have to lock the two pieces in a vice or clamp.
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2nd November 2017, 10:17 PM #11GOLD MEMBER
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Hi Gents, and thanks for all those suggestions. I dont have a lathe. And I want to use nice timber. (not dowels etc). So maybe I might look at the hole saw idea and play around with it. So this would involve moving the drill in the hole saw right up out of the way. Interesting. And I do only want to cut through about 4mm, and get a nice clean cut also.
Thanks for all this advice
Paul
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3rd November 2017, 04:24 PM #12
As suggested with the hole saw minus drill bit, but attach the timber to a substrate with double-face tape, to aid removal from the hole saw; a PITA otherwise.
Cheers,
JoeOf course truth is stranger than fiction.
Fiction has to make sense. - Mark Twain
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4th November 2017, 03:45 AM #13
What you want is a Tenon cutter
Lee Valley has imperial sizes up to 3" Carbide-Tipped Dowel, Plug & Tenon Cutters - Lee Valley Tools the more expensive power cutters are really for use with stick furniture.
Stubai tenon cutters Woodworking Tools : N° 3100 STUBAI tenon cutters come in 5 mm increments from 10 to 50 mm. I've used the 20 mm tenon cutter both for plugs and tenons. In Australia, The Woodworks carries them https://www.thewoodworks.com.au/shop...r-tenon-detail but it's probably worth teh minutes to check for an overseas source.
you can get a 20 mm Fisch tenon cutter from Dictum https://www.dictum.com/en/tools/wood...utter-oe-20-mm just remember that teh sticker price includes VAT, so you can subtract 20% before you add shipping
Axminister do a 8 piece set covering 15 to 30 mm plugs and mortices 8 Piece Matching Plug and Bit Set (15-30mm) - Plug Cutters & Plugs - Drilling - Power Tool Accessories - Accessories | Axminster Tools & Machinery you can also get individual Fisch cutters so compare the GBP minus VAT with the ex VAT price from Germany
Dieter Schmid in Berlin does a 6 piece mortice and tenon set (15, 20 and 25 mm) https://www.fine-tools.com/zapfenschneider.htmlregards from Alberta, Canada
ian
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