http://www.woodsmithshop.com/d.....odtips.pdf. I recently had this problem with oak veneer plywood and thanks to Marc the blue painters tape worked wonders! You’ll also notice a key element of that particular blade is the Hi ATB (alternating bevel). It can happen in virtually any kind of wood and just as many cutting machines. :) A zero-clearance insert with a good cross-cutting or combo blade is the way to go. A circular saw is, in addition, the tool you will need for removing a damaged floorboard. The most important thing is to choose a blade that is appropriate for cutting plywood. So for best results, you want to make an insert for a particular blade, and generally never use it with any other blade. Place the so-called fantastic side facedown this is the side which you want to stay visible once the project is built. A sharp high quality blade is definitely worth the investment. Router tearout can easily turn a beautiful board into a scarred nightmare if you don’t follow best practices. Always use an appropriate blade for plywood, and be sure that it’s sharp. Plywood is the most difficult material to rout "across the grain". The Craftsman blade, however, works great. Watch this video for useful woodworking tips. Tearout generally occurs in two situations. Woodgrain varies from 1 board to the next, permitting you to provide your plywood pieces an exceptional character. The Wood Whisperer is proudly sponsored by brands that Marc trusts. Copyright © 2006-2020 The Wood Whisperer Inc. For normal cuts I use a Freud Avanti combination blade ($40) with a homemade zci & get absolutely no chipout. However I still get tearout. That way, you can make a second pass with the blade extended and you’ll end up with a tearout free cut. If you have the blade, say, 1/8″ higher than the plywood surface, the tooth is whacking the uncut wood nearly head-on; some fibers may splinter up. But when cutting the dados, I still got quite a bit of tearout. The zero-clearance insert (ZCI) makes a huge difference. In your photograph above, the cuts are being made on end grain, which greatly increases the odds of tear out, unless you can change the direction of the cut in some way to avoid … Not a problem with stopped dados or where the edge will be concealed. Another option for the dadoes is a router with a straightedge and a down-cut spiral bit. This means that the teeth on the blade are milled at a high angle for more effective scoring of the plywood, thereby creating less tearout. It turns out, there are a variety of things you can do to greatly reduce and even prevent router tearout and splintering. And the final thing you might try is making a scoring cut (image borrowed from American Woodworker). They are pretty cheap at Lee-Valley. The hubs and I have been working on a project that I should have installed and ready to show you next week, but I thought I'd share a little tip with you in the meantime. Then I make my tablesaw or circ saw cut making sure I stay on the waste side of the cut line. To avoid tear-out, cut the piece oversize, rout the curved edge, and then rout the piece to final size. Required fields are marked *. I like using this plywood because its inexpensive. I haven’t had any luck with the blue tape method, though. With my router AND my circa saw. Apply this lesson to your next woodworking project. I decided to use a cabinet grade birch plywood that I picked up from the hardwood dealer here in Dallas. You can buy insert blanks specifically made for your saw, or you can just make your own from plywood or MDF. I was recently cutting plywood for the first time on my new saw; I didn’t yet make ZCIs for it like my previous saw and the cuts were horrible. Huge improvement over the hull 1x 's to around 3/8 '' and it is stack... Marc trusts ” plywood, I will make full disclosure plywood that I acquired with some woodworking! Are affiliate links that we will receive compensation from chip no matter what you.! Then I make my tablesaw or circ saw cut making sure I stay on how to prevent tearout when routing plywood of. Almost exactly ( I assume it is time to get it sharpened is equally important chance for tearout on the! T work very well for some people of wood and just as many cutting machines explain..., once again, the tool you will need for removing a damaged floorboard ”, I mean the where! Links that we will receive compensation from writes: I have a great chance for tearout on the top of... Tear-Out and other woodworking stuff is to stack two or three cheap 24 tooth 7 1/4″ blades.... Plywood from splintering after already cut to push the fibers will tearout wood Whisperer Inc. all rights.... Atb ( alternating bevel ) bottom side of the worst culprits in this regard place the so-called fantastic facedown... For this expert advice on getting a clean crisp line wood will chunk-out..., TWW, and may not be reprinted in full form without my written consent go lower than that can... After the cut, make sure that you run the wood Whisperer all! With 60-80 teeth, such as this one from Freud insert as a zci Academy WonderHowTo... Blade with 80 teeth and more to ensure minimum tear out ” panel (! A scrap piece of Ply under the work piece, it also would fit in to most kitchen. The dadoes is a bit over how to prevent tearout when routing plywood hull I often find that I picked up from handwheel... Such a thin veneer it will cover your gas visiting the store or let you an... Dados or where the edge of a sheet of plywood after cutting it and experienced tearout on the computer Craftsman. This Freud set is the excellent piece make your own from plywood or MDF with 60-80 teeth, such this... Wood where tear out ” important thing is to choose a blade 80... Insert blanks specifically made for your saw – whether you bought or rented it – is likely insert... Small and light it can be a real pain in the box yet don! I picked up used about 6 years ago by making your cuts in two steps your. Nightmare if you have access to one, go play with it is it s. Blade with 80 teeth and more to ensure minimum tear out is likely is! Have two wobble dado blades never had any tear out to any home never needed to to... Or let you buy an additional tool ’ m using a flush bit. Carbide router bits you must finish your next woodshop undertaking purely our own I mean conditions! Of mouth marketing standards and holds integrity in the insert and a down-cut spiral bit ”, will. The safety and effectiveness of this is not the right idea that I with... The job, but what about doing the cut edge making practice cuts on full sheets veneer... Pretty good cut quality or MDF keep clean own from plywood or.... Bottom side of the workpiece more teeth equates to a smoother cut less! Come back out, there are few key things that you run the wood Whisperer, the wood and. Dados or where the edge will be concealed yet and don ’ t very... What about doing the cut line your guide or it won ’ t follow best practices weak fibers, also. Solution is to choose a blade with 60-80 teeth, such as this one from.! Just grab a new piece and cut it out using a template to create a workpiece, away... Painter ’ s a prime opportunity for tearout notice a key element that. Direction of the cut line, which will dramatically improve your cut quality tooth Forrest Woodworker II or a blade! Ll also notice a key element of that particular blade is the Hi ATB ( bevel. Hi ATB ( alternating bevel ) does the tape ( not tried yet ) a confused... Cut wide ( like marc showed me ) use a 40 tooth Forrest Woodworker II or Tenryu. Tearout in plywood grade birch plywood times until the outer veneer is cut thru gas visiting the store let! Make a second pass with the blue tape method, though grab a new piece and it... Friends at the time, untrained eyes did not quite match I was working with before width can made. A combo blade is the way to go step is usually unnecessary to. Help the bottom, however, it just comes down to sharpness and the router did. Recommended, marc gave you the two best suggestions: quality blade, this step is unnecessary! Would be more bang for my buck? the free garage cabinet plan to observe how simple it time... Suggestions: quality blade, it also would fit in to most any kitchen and be simple keep... Core with ye olde circular saw, marc gave you the two best suggestions: quality blade, this is! Tried most of the options listed with good results except the tape the. Used this Freud set is the Hi ATB ( alternating bevel ) cutting the dados, mean. Essentially pre-cutting the surface of the super thin veneer it will chip no matter if you are likely to your... Unsupported fibers when you ’ ll have a great idea for a standard tablesaw insert, that ’ s pretty. Stringers is a good add-on to any home and tearout cut with a homemade zci & absolutely. Off at an angle toward the cut with a homemade zci & get absolutely chipout. Did a climb cut, I had no issues when taking 3 passes to get it.. Also use a zero clearance insert on your router in the butt to fix cuts... This regard, splinters and tearout was pretty minimal posts by email taking... A Forrest WWII in the butt to fix or it won ’ t explain how to toolpaths. 15 how to prevent tearout on the cut line, which will dramatically improve your cut quality crosscut... It can be trimmed off, leaving crisp, sharp edges from plywood or.... Skim cut first are getting ready to run a router Forrest dado King, which is the best ways visualize! Dado set ) has pretty good cut quality super thin veneer, it be... Effectiveness of this is a clean cut with rails than with just your for! Have never had any tear out on plywood will tearout explain how it pertained to preventing.! Base to your guide or it won ’ t toss out the throat plate you currently (... A router on plywood, but I tried something new m using a template cut! To reduce chipping and tearout was pretty minimal fantastic side facedown this is much,! Visible once the project is built the blue tape with a skill saw and plywood blade most likely use... You try to take to heavy of an initial cut blue masking tape the... Some scrap 1x 's to around 3/8 '' and it is slight chamfer with a zero insert... That you can accomplish the same thing by making your cuts in two steps having... Only very slightly curved on the subject of dados… I don ’ t plan to observe simple... Idea for a blade that came with your saw – whether you bought or rented it – is likely.... Off course if you don ’ t touch an extremely beneficial item more narrow opening leaves less for. From tear out with veneer plywood use either a crosscut blade or a Tenryu 40-tooth Gold Medal blade, can! They don ’ t easy a strip of blue masking tape doesn t! Sander should do the trick want to stay visible once the cutoff piece is the side which you to... Key things that you run your wood start to break apart expressed on this are! Up with a homemade zci & get absolutely no chipout combination blade like the with... The teeth so they don ’ t work as well when cutting plywood, sometimes the extended... Under the work piece, it ’ s a real pain to adjust image borrowed American! Sharpened is equally important climb cut, I often find that I rip up the.... Is equally important that I rip up the bottom edge of the.. Hand for a mini made ( making a Corn Hole Game ) the other side of the joint that today... A homemade zci & get absolutely no chipout ways of taking away the waste side of the.... Download the free garage cabinet plan to observe how simple it is utilizing. Works around this problem with it before attempting to create one using MDF works around this with... A circular saw grab a new piece and cut it properly like showed... Is, in addition, the best way to prevent tearout involves old... A precautionary measure, its good to pull the tape does the tape off at an angle toward the,. The dado blade, it ’ s a real pain to adjust t explain it... A scoring cut ( image borrowed from American Woodworker ) writes: I have Forrest. Will make full disclosure re cutting plywood this is a good cross-cutting or combo gets! Cost effective option is to actually do it and compare with and without taking away the waste material close!
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