What Size Flush Trim Router Bit To Trim 3/4 Inch Plywood

#1 posted 02-22-2017 05:43 AM

Possibly I'm naive for asking, but why not a TS and sled? Cut 7" strips on the TS and so set a stop for seven" on your sled. I would think this is much fasted than rough cut on a band saw and and so cleaning them upwards with a router.

-- Pecker, Yo!......in Brooklyn & Steel Urban center :)

#2 posted 02-22-2017 06:31 AM

My exact thoughts! A good plywood bract on the TS and crosscut sled. = finished

#three posted 02-22-2017 07:twenty AM

Thanks guys I approximate I should analyze. They are curvy shapes, definitely non "squares." I was giving dimensions roughly to estimate how much life each bit would have cutting these. Ive updated the original post to reverberate that.

Maybe I m naive for request, but why not a TS and sled? Cutting 7" strips on the TS so set a stop for seven" on your sled. I would remember this is much fasted than crude cutting on a ring saw and and so cleaning them up with a router.
- builtinbkyn

My verbal thoughts! A good plywood bract on the TS and crosscut sled. = finished
- papadan

#4 posted 02-22-2017 07:33 AM

Clarity of what'due south needed does seem to assistance on occasion! Purchase a quality flush trim bit and brand your template then you can trim any shape you need on the router table. I have $5 woodcraft bits that are still precipitous after cutting hundreds of anxiety of forest.

#v posted 02-22-2017 08:41 AM

Hundreds, how many hundreds? Repetitive stuff like that become so boring afterward a while you'll beginning dreading going out to the store after a while. I'd become CNC route. Life is just to short. I'd spend my time edifice something more interesting.

Your mileage my vary

-- Alaskan's for Global warming!

#vi posted 02-22-2017 01:21 PM

I 1000 looking to cut lots (hundreds) of approximately seven×7" curvy shapes out of 3/iv" plywood, and was wondering what the all-time way is. I was leaning towards making a pattern, trimming pieces on a band saw every bit close every bit possible, then using a flush trim bit on a router table.
Was because the Whiteside pinch carbide bit or a narrower carbide chip from MCLS. But whatever idea how many anxiety of 3/4" ply these bits tin cut before needing sharpening? I already tried a ~$ten MCLS flush trim chip and it dulled after cut about two pieces. It s only of import that one side of the wood is cleanly cut, so using just an upcut bit is possible, simply mainly considering the Whiteside bit for its larger size/longevity before sharpening (would that exist accurate?).

I thought about hiring out a someone with a CNC, but would rather practise this myself. Not needing these all tomorrow or annihilation but desire an efficient method to utilise in my own shop.

Is this a good route to look into or is there a meliorate method altogether?

- huyz

Sometimes we all don't read the question before answering…

That looks like a monster bit. I take a Freud i/2 inch trim bit and accept used it for years.

I think your approach sounds fine.

A band saw duplicating pin would really help past making the cuts fool proof and reduce the amount needed to be routed. I think the glue in the plywood would be the hardest on the bit, then getting that to a small consequent offset would be best for the fleck.

http://www.rakuten.com/prod/bandsaw-duplicating-pin-ready-past-peachtree-woodworking-pw1770/227994094.html
EDIT:
Hmmm, Rocker doesn't seem to carry it anymore.

-- I e'er knew gun nuts where afraid of something, just never idea popcorn was on the listing.

#7 posted 02-22-2017 01:46 PM

Buy ii bits of whatsoever you make up one's mind on, and and so you can rotate the sharp one in while the ho-hum one gets sent out to be sharpened.

-- Bondo Gaposis

#viii posted 02-22-2017 02:11 PM

I'yard pretty certain I'm not that crazy yet. The OP said "seven×seven" squares." "Curvy shapes" never would take elicited my response.

Edit: Ah I see your afterward postal service. Thank you for giving me my sanity back LOL

I m looking to cut lots (hundreds) of approximately 7×7" curvy shapes out of iii/4" plywood, and was wondering what the best way is. I was leaning towards making a pattern, trimming pieces on a ring saw equally close as possible, so using a flush trim flake on a router table.

Was considering the Whiteside compression carbide bit or a narrower carbide bit from MCLS. But any idea how many anxiety of 3/4" ply these bits tin can cut earlier needing sharpening? I already tried a ~$ten MCLS flush trim bit and it dulled after cutting virtually two pieces. It s only important that one side of the wood is cleanly cut, so using but an upcut bit is possible, just mainly considering the Whiteside flake for its larger size/longevity earlier sharpening (would that be accurate?).

I thought about hiring out a someone with a CNC, but would rather do this myself. Not needing these all tomorrow or anything but want an efficient method to use in my own store.

Is this a skillful road to look into or is there a better method altogether?

- huyz

Sometimes we all don t read the question earlier answering…

That looks like a monster chip. I have a Freud 1/2 inch trim bit and accept used information technology for years.

I think your approach sounds fine.

A band saw duplicating pin would really aid by making the cuts fool proof and reduce the amount needed to be routed. I think the glue in the plywood would exist the hardest on the chip, so getting that to a small consequent start would be best for the bit.

http://www.rakuten.com/prod/bandsaw-duplicating-pin-gear up-by-peachtree-woodworking-pw1770/227994094.html
EDIT:
Hmmm, Rocker doesn t seem to deport it anymore.

- RobS888

-- Pecker, Yo!......in Brooklyn & Steel Urban center :)

#9 posted 02-22-2017 02:12 PM

Duplicate

-- Bill, Yo!......in Brooklyn & Steel City :)

#10 posted 02-22-2017 02:25 PM

Bill, your not crazy

Sometimes we all don t read the question earlier answering…

- RobS888

Thank you guys I estimate I should analyze. They are curvy shapes, definitely not "squares." I was giving dimensions roughly to estimate how much life each bit would accept cutting these. Ive updated the original post to reflect that.
- huyz

Sometimes we all don't read the replies before answering! :)

Have you lot thought near using a shaper.
If you had one you wouldn't demand to band saw them first, yous would need a good jig to hold them though.
If your doing hundreds I retrieve I would consider it.

#11 posted 02-22-2017 02:39 PM

Cheers Jbay ;) Actually later on having my first cup of coffee this morning time, I recall the OP may have said "pieces" and not "squares". It was tardily when I read the mail and replied. Watched the two 60 minutes flavor finale of The Treasure of Oak Island late on my DVR. Ah well, in any of the in a higher place cases, it seems similar a lot of slow work :O

-- Bill, Yo!......in Brooklyn & Steel City :)

#12 posted 02-22-2017 03:48 PM

To attempt to answer the OPs question, the life of the chip depends on a lot of variables including quality of the bit itself, and how it's used. A solid carbide i/4 inch fleck should be able to cut several hundred feet of three/4 inch plywood without dulling enough to dramatically affecting the cut.

-- Murphy's Carpentry Corollary #3: Half of all boards cut to a specific length will be too short.

#13 posted 02-22-2017 03:52 PM

If yous take a lot of them to practise, you may want to store for a cnc shop to cut them for yous. If y'all take your patter already and can be washed with single tooling, should not price too much. Your times worth something. If not, get a long top bearing bit, stack em with double sided tape and cutting em in multiples. I did that with my wine rack holders for my wine cabinets i make till i got the cnc.

Practiced luck.

-- Sooner or afterward Liberals run out of other people's coin.

#14 posted 02-22-2017 03:57 PM

I'd get the Whiteside router fleck as it's on sale. Good luck on your endeavors.

http://www.woodpeck.com/whitesideultimatetrimbit.html?_bta_tid=411860746576000619741452060468799766675351288740869453891798260195044551126686763688219&_bta_c=20rktedf9e5g18na1mqmve1mzs87s

Whiteside Ultimate Trim Scrap – Combination
$193.eleven $139.99 Sale!
4UDC9112
7/8" Diameter 10 1-1/8" Cutting Length ten 1/2" Shank
Quantity

#15 posted 02-22-2017 04:00 PM

pin router.

They are copy machines and the correct tool
for the task.

If the curves are balmy, yous can consider investing
in a small shaper and using a rub neckband
and cutter to cutting to the template. The
larger od of a shaper cutter makes a
cleaner cut.

Merely be brash that this is probable to be a
tedious, dusty exercise.

#xvi posted 02-22-2017 04:01 PM

Proficient LUCK :<))

-- Tony---- Reinholds,Pa.------ REMEMBER TO ALWAYS HAVE FUN :<))

#17 posted 02-22-2017 04:29 PM

Does it have to exist plywood? A solid wood would be kinder to router bits. CNC will cost you lot more; they have to laissez passer the cost of bits and sharpening on to the customer along with labor and machine depreciation. Either way, it will cost you about the same.

#18 posted 02-22-2017 04:46 PM

Yo Neb, nosotros answered the original post just correct. The OP came back and changed the information on us. As for doing this job, one good chip will handle it and not need sharpening. It will demand cleaning several times to remove the pitch and mucilage that will build up and keep it from cutting!

#nineteen posted 02-22-2017 05:01 PM

Here's an inexpensive way of turning a regular router table setup into a pin router. Had to wait up what a pin router is. Never heard of it :) MLCS Daisy Pivot Router

pin router.
They are copy machines and the right tool
for the job.

If the curves are balmy, you lot can consider investing
in a small shaper and using a rub neckband
and cutter to cut to the template. The
larger od of a shaper cutter makes a
cleaner cut.

Just be advised that this is likely to be a
boring, dusty practice.

- Loren

-- Bill, Yo!......in Brooklyn & Steel City :)

#20 posted 02-22-2017 05:12 PM

I used to take a CR Onsrud Pivot Router. How well it would do would depend on the size of pin router.
In that location not much more than than a router table with the bearing above the table.
Very skillful for plunging upwards through openings, simply other that that, information technology'due south just a router.

#21 posted 02-22-2017 05:23 PM

Bank check with a local sign company who does dimensional signage – they can gear up vector files to trace out the shapes yous desire and route it on their tabular array.

I'1000 out of New Orleans and can manufacture this for you if you're interested in getting a cost. How many 7×vii on what type of plywood?

-- Matthew 13:53-58

#22 posted 02-22-2017 05:55 PM

Thanks for the replies everyone.

Check with a local sign company who does dimensional signage – they can set vector files to trace out the shapes you want and route it on their table.
I m out of New Orleans and tin can manufacture this for you if you re interested in getting a price. How many 7×7 on what type of plywood?

- r33tc0w

Maybe 200-400 pieces cut on three/4" birch ply. What kind of pricing can you do?

#23 posted 02-22-2017 06:14 PM

I retrieve the bandsaw to blueprint routing arroyo sounds viable—particularly if you don't need them in hurry AND you lot don't mind the hours of repetition.

I used to go ShopNotes and recollect a project in 1 of the magazines for a bandsaw blueprint cutting jig—not certain if that will help. It does Non flush trim, only if your template was a piffling bigger than your desired last dimensions—it might get you to where you lot need to be. I tin can get the issue number if you want.

I think I accept seen flush sanding drums for the drill press. That might help.

I have had skillful luck with the Whiteside screw flush trimming bits. I have both of these:
https://www.amazon.com/Whiteside-Router-Bits-RFT2100-Diameter/dp/B000HPYOJ6/ref=pd_sim_469_1?_encoding=UTF8&psc=1&refRID=E7XZ3244CH6VGGVA945J

https://www.amazon.com/gp/product/B000M35UWI/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1

I would suggest getting a bit with a i/two" shank and at least a 1" cutting length. If you make up one's mind to stack the parts you lot'll need a longer cut length. I like the compression bits, simply the toll is steep.

I often employ blueprint cutting in my projects. I typically use double stick record (I similar golf grip record) to agree the template to the work slice. Hither'southward a good arroyo (works well for corners) http://toolify.ca/project/corner-radius-templates/. The "wings" on the template make it cocky aligning and easy to utilise the template with no record. This approach does work well for a corner profile—not sure how well it can be adapted to a larger profile or odd shapes.

Any you decide, y'all must come upwards with an accurate, repeatable process. Please let u.s.a. know what approach/procedure you decide on. All-time of luck.

#24 posted 02-22-2017 07:45 PM

Neb, your non crazy
Sometimes we all don t read the question before answering…
- RobS888

Thank you guys I guess I should clarify. They are curvy shapes, definitely not "squares." I was giving dimensions roughly to approximate how much life each scrap would accept cutting these. Ive updated the original postal service to reverberate that.

- huyz

Sometimes we all don t read the replies before answering! :)

Take you thought about using a shaper.
If you had one you wouldn t need to ring saw them first, you would need a skillful jig to hold them though.
If your doing hundreds I retrieve I would consider information technology.

- jbay

Count me in all I guess.

-- I ever knew gun nuts where afraid of something, merely never thought popcorn was on the list.

#25 posted 02-27-2017 05:16 AM

When I was in the 3rd grade I got a roll saw for my birthday. Some older guy asked me to make him hundreds of curvy shaped uniform pieces from plywood, oval from one side. After near 20 I got very bored with the repetetive work so I clamped all pieces together and cut off corners with a hand saw and rounded them with a rasp. Finished the whole job in 30 minutes that otherwise would take me days.
Too in your case you can stack every bit many pieces every bit fits into your bandsaw and cut them all at once. If the shape is convex and not overly complex yous tin utilise other tools to process piece in larger groups.

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