CNC Router Bits Explained: The Best Bit To Use

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CNC router bits can be confusing. In this video, I explain and show the differences between an upcut, downcut, and compression bit.
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Опубликовано:

17 мар 2022

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Комментарии : 105

@matthewsaxe6383 Год назад

Great video. Excellent descriptions. I've been using a router for 35 years and bits have come so far!

@lostinthegarage 2 года назад

Super helpful video! I appreciate the effort you put in to both explaining and showing.

@AndyBirdBuilds 2 года назад

Glad it was helpful!

@samwoodrow4871 2 года назад

That was great. Very informative and explained perfectly. Thank you!

@AndyBirdBuilds 2 года назад

Great to hear!

@barrypolis6720 10 месяцев назад

Great demo. I have a number of compression bits, and wasn't aware of the short flute until watching this... just ordered two. Thanks!

@daviddahl8220 2 года назад

Great video, and super informative! Glad I watched.

@AndyBirdBuilds 2 года назад

Great! Thanks for watching!

@gregoriogutierrez6921 Год назад

I think your video is very appreciated. The up and down bit is the best tool than the signs guy must know about

@DanBlomberg 2 года назад

Great video... I was looking for exactly this information earlier this week!

@AndyBirdBuilds 2 года назад

Perfect!

@zmanfishing3361 Год назад

Thank you for sharing this info, helps to shorten the learning curve.

@AndyBirdBuilds Год назад

For sure! Glad to help

@webrec1266 Год назад

Great video! Very helpful

@theebalz Год назад

Learned a lot about these bits and look forward to learning about other bits like V Bits. Thanks! 👍

@AndyBirdBuilds Год назад

Glad to hear it!

@thesplinteredfinger 2 года назад

Very good information Andy!

@AndyBirdBuilds 2 года назад

Glad it was helpful!

@vgreddyj 6 месяцев назад

That was excellent. Educational and articulated exceptionally well. I appreciate it!

@AndyBirdBuilds 6 месяцев назад

Glad you enjoyed it! Thanks for watching.

@craigwoodruff9018 Год назад

Thank You that was extremely helpful for me being a new bee to CNC . Bought the Shapeokoe PRO XXL.

@AndyBirdBuilds Год назад

Great to hear!

@mattwylie6651 Месяц назад

Great video very helpful.

@TheWoodPastor 2 года назад

Great video bro. Still fine tuning how I do things after a year.

@AndyBirdBuilds 2 года назад

Thanks man! I'm always learning something new in this world of CNC

@happywanderer5632 Год назад

Great explanation! Thanks

@AndyBirdBuilds Год назад

Glad it was helpful!

@alanbuilds7829 2 года назад

Great info here Andy

@AndyBirdBuilds 2 года назад

Great to hear, Alan!

@guillermomartinezyg.2547 Год назад

Great video, espeacially for newbies like me

@AndyBirdBuilds Год назад

Great to hear! Welcome to the channel

@jamesmartin5277 Год назад

Very interesting about the spiral change point - Unfortunately many of the router bit manufactures dont seem to specify this piece of information!

@joemadden 6 месяцев назад

Thank you! I'm a newbie CNC owner and the bits were really confusing.

@AndyBirdBuilds 6 месяцев назад

Glad it was helpful!

@LKMKully 8 месяцев назад

Great Video!!! Would be nice to see another video on other bits, like ball nose finishing bits. The sizes and how they work. How they cut and when to use them. Cheers Kully

@AndyBirdBuilds 8 месяцев назад

Noted!

@danielmaaka6845 Год назад

Great Video !!

@AndyBirdBuilds Год назад

Welcome to the channel, glad you liked it!

@bigkremey 2 года назад

Very informative buddy. Thanks for putting it together and breaking it down to my level (kindergarten) 😂🤙🏼

@AndyBirdBuilds 2 года назад

Glad it was helpful!

@graveurgraveur2691 2 года назад

Thanks!

@AndyBirdBuilds 2 года назад

For sure!

@dopert2 3 месяца назад

Thank you very much

@AndyBirdBuilds 3 месяца назад

You are welcome

@eherby 2 года назад

cleared up a lot of misconceptions I had

@AndyBirdBuilds 2 года назад

Glad it was helpful!

@shughes599 9 месяцев назад

Amazing.

@AndyBirdBuilds 9 месяцев назад

Thanks for watching!

@daviddavis6065 Год назад

i subscriber to your channel i like your videos take care

@AndyBirdBuilds Год назад

Glad to hear, thanks for the support!

@CNCmachiningisfun 2 года назад

Great video, bro. Very informative. Just wondering: Do you use a spoil board on your machines? It seems that you are obliged to replace the machine bed slats - on a regular basis, otherwise.

@ryanlangan1060 Год назад

It clearly shows a spoil board in the video. He just divides it up into slats so he has access to the T-slots.

@CNCmachiningisfun Год назад

@@ryanlangan1060 I arranged mine in a similar way, and I have never needed to replace anything, even after 12 years of use, due to the use of sacrificial materials. That's what I mean, by spoil board.

@resorter66 2 года назад

Andy have you ever done a video on doing tool changes using the bit setter and bit runner..that might show the different screens in carbide motion 542

@AndyBirdBuilds 2 года назад

I haven't. I've been thinking about doing a video on the Bitrsetter but haven't because its specific to the Shapeoko

@resorter66 2 года назад

Well I think it would help a lot of Shapeoko owners that have the bit setter and bit runner. I know from experience that if you don't understand it fully bad things happen. Jeff

@AndyBirdBuilds 2 года назад

@@resorter66 Good point

@carmandr24 Год назад

Do you have any bit recommended for cutting/ drilling 1/4-1/2” width holes

@jimimmler9110 Год назад

I use single flute straight flute bits for almost everything. Cuts are clean and smooth top and bottom.

@AndyBirdBuilds Год назад

Thanks! I recently read this somewhere and was intrigued. I'm going to give it a try. Any tips?

@b-radg916 Год назад

@@AndyBirdBuilds: Did you try it?

@bestyoutubernonegraternumber1 Год назад

Hey Andy! I have bought into the Shapeoko Pro XL & were I to get one of these compression bits, can I use it with that machine + the carbide router safely on more than MDF & still benefit?

@AndyBirdBuilds Год назад

Yes you can!

@resorter66 2 года назад

Sounds like a bit i need ?question did you or do you recommend plunge ramp in with that bit and the others.

@AndyBirdBuilds 2 года назад

It really depends on the material. For more woods it isn't necessary

@resorter66 2 года назад

@@AndyBirdBuilds what about hard maple and walnut

@andyalexander8064 Год назад

A question on the compression bit with the 1/4" change. If my CNC is using the Makita for its spindle, would it be able to handle that 1/4" plunge? Thanks.

@AndyBirdBuilds Год назад

There are a lot of other factors to consider for success, but if it comes down to the just the plunge of the Makita yes it can do it.

@andyalexander8064 Год назад

@@AndyBirdBuilds Yes, certainly other factors. Thanks for the reply. Still learning on what I can do with the CNC. Thanks again. Love your videos.

@jginme 2 года назад

I have a project that needs a triangle cut out of the center with sharp corners so I am thinking of using my 10degree engraving bit to clean up the last bit of the pocket. Any other suggestions? I cant find any videos on using engraving bits on the CNC for wood and super fine detail. My tapered ball nose wound work here…has to reach .505 down before cutting a .180 deep clearing. Hmmmm

@AndyBirdBuilds 2 года назад

Its really hard to say without knowing more details. But the smaller the radius the bit has, the tighter the corners you can get

@StevenGamesWHC Год назад

Drill bit for initial hole then then probably an end mill to widen it then similar bit you see here if its milled from a solid piece

@ralfboller9977 Год назад

But what kind of bit is the best for clean sides after cutting ?

@michaelagostino1321 Год назад

Does SpeTool have specs for the spiral change? I don't see any info on this on their up/down bits. If there isn't a spec given can you just use a micrometer to measure the bit on where the change occurs? I would assume it would be visually obvious on where this is on the bit. If we're still on track here, Is that value then used for the routers plunge rate?

@AndyBirdBuilds Год назад

Yes that would work

@b-radg916 Год назад

The plunge rate is the speed the bit moves vertically into the material, which is different from the depth of the initial pass.

@davidkaiser4488 2 года назад

Can you use a downcut bit for the first pass and then go to an upcut bit for the final pass through the part as a way to get get a clean top and bottom surface, or will the chips being ejected on the last pass with the upcut cause issues with the top edge of the part?

@AndyBirdBuilds 2 года назад

In theory this would work but it wouldn't be worth the headache to setup the tool paths

@davidkaiser4488 2 года назад

@@AndyBirdBuilds Thanks for the reply! Getting my CNC in April!

@shooshx Год назад

Is it possible to reverse the rotation direction to turn an up cut bit to a down cut bit? Also, can you do the first top pass with a down cut but and then do the bottom pass with an up cut bit?

@areutryingitout5678 Год назад

Yes, if you want to reverse your spindle or router, of course. If you want to do the second, of course you can too. Just takes more time.

@b-radg916 Год назад

Reversing might not work well because the tip of the bit would still be designed for a clockwise spin. The side of a bit definitely does a lot of the cutting as it moves horizontally, but you might be left with an uneven face. Could be worth a try, but I’d rather use a compression bit than set up two toolpaths and do an extra bit change.

@harm679 2 года назад

I am a metal worker, never know this was a thing with wood routers.

@AndyBirdBuilds 2 года назад

Nice! Thanks for watching

@Convolutedtubules 2 месяца назад

It's also used for machining composites and maybe other stuff.

@PaulMorel Год назад

Andy - Shapeoko owner for 3 yrs now. Both my 1/4" upcut and downcut bits are discolored and I assume are getting dull. Time to replace them. I like your video on "Best bit to use" and I have a question. You show the Max Depth as .52000" for both bits. Bits&Bits shows the max cut length of 1". Why are your depths so conservative?

@b-radg916 Год назад

I’m pretty sure that is the depth of cut for that toolpath. If he’s cutting .5” MDF, then he’d be cutting .020” deeper to ensure a cutout.

@GGscrafts Год назад

Where do you purchase your compression or down cut bits

@AndyBirdBuilds Год назад

Bitsandbits.com Use code ANDYBIRD to save a couple bucks!

@GGscrafts Год назад

I didn’t see a reply lol

@chadp2398 2 года назад

Can you do these deep cuts on hardwoods with the compression bits

@AndyBirdBuilds 2 года назад

That would depend on your machine, spindle, and workholding

@chadp2398 2 года назад

Shapeoko XXL, their spindle, work holding is

@chadp2398 2 года назад

Oops optional

@paulneeds Год назад

What would one use if you’re cutting a channel/slot/key way in which a clean top surface is desired, but also a clean bottom surface? Again, a channel that doesn’t go all the way through the work piece. The depth of the slot is .35 inches. Thanks.

@AndyBirdBuilds Год назад

I would use a downcut bit

@paulneeds Год назад

@@AndyBirdBuilds thank you! And many thanks for taking the time to reply too - I shall give that a try. 👍🏽

@gregoriogutierrez6921 Год назад

I us to use when have PVC with Vinyl and vinyl over laminate

@marioj1908 7 месяцев назад

Is that the Shapeoko 4?

@AndyBirdBuilds 7 месяцев назад

Shapeoko Pro

@Ferdy-Perezlara Год назад

Hola perdón por escribir en español, es mi primer cnc y tengo problemas, tengo una madera de Zalam de 25 mm y en mi cnc hago un círculo vacío de 12 mm de profundidad, el primer intento fue con una broca de 4 hilos up de 1/4 de grosor, la segunda prueba fue con una broca de compresión de 1/4 pero solo perforó 4 mm por pasada y para hacer el cambio de filo por lo menos tenía que haberlo hecho con 6 mm según tu experiencia, PERO el problema son las caras que deja después del corte, no son lisas, tersas, son peludas y eso me va a costar tiempo de lijado, el Spindel que tengo es de 300 w y de 12,000 revoluciones no sé si le falte velocidad o si llevo muy rápido el avance de la broca, son tantas cosas que por esta razón decidí escribirte y preguntar que debo hacer 🙏🏻🙏🏻 Saludos desde Cancún México Fernando Pérez