Pocketing out large areas

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Steven Sirrine
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Joined: Thu Jan 12, 2017 9:34 pm
Model of CNC Machine: Shark HD4

Pocketing out large areas

Post by Steven Sirrine »

Newby to CNC: If I'm going to pocket out a 13" X 10" space, what would be the proper tool? I'm currently using a .25 end mill, but it takes quite awhile. Any suggestions on a larger tool? Thanks.

4DThinker
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Re: Pocketing out large areas

Post by 4DThinker »

When I need to pocket out a large area I use the largest end mill I have. That is usually a 1/2" diameter bit but at home I have a 3/4" diameter bit that shortens the cut time even more. Just be sure and be conservative with your pass depth and stepover values, and ramp down into each pass.

Steven Sirrine
Posts: 17
Joined: Thu Jan 12, 2017 9:34 pm
Model of CNC Machine: Shark HD4

Re: Pocketing out large areas

Post by Steven Sirrine »

Thanks! I didn't know they made end mills that large.

edwan
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Model of CNC Machine: Shapeoko
Location: Schaumnurg, Illinois

Re: Pocketing out large areas

Post by edwan »

Amana makes one that may work for you. #45236. 1" cut with a 1/4" shank.

Steven Sirrine
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Joined: Thu Jan 12, 2017 9:34 pm
Model of CNC Machine: Shark HD4

Re: Pocketing out large areas

Post by Steven Sirrine »

Thanks, Edwan! I'll order one now.

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highpockets
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Re: Pocketing out large areas

Post by highpockets »

I'd recommend as big a shank as your router will except when working with larger bits. There's a fare amount of mass moving very fast.
John
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Steven Sirrine
Posts: 17
Joined: Thu Jan 12, 2017 9:34 pm
Model of CNC Machine: Shark HD4

Re: Pocketing out large areas

Post by Steven Sirrine »

I totally agree. I don't know if I can get a 1/2" or larger collet for my Shark HD4, but if I can't, I'll definitely slow the plunge and feed way down. Thanks!

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highpockets
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Re: Pocketing out large areas

Post by highpockets »

Steven Sirrine wrote:I totally agree. I don't know if I can get a 1/2" or larger collet for my Shark HD4, but if I can't, I'll definitely slow the plunge and feed way down. Thanks!
I'd suggest using the ramp plunge option also.
John
Maker of Chips

sluggo
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Re: Pocketing out large areas

Post by sluggo »

I'll sometimes use forstner bits (but be sure you don't go too deep!) I have a set up to 4", so you can clear a ton of material very fast. When using large bits like that, make sure you clamp the material down to your drill press table first!

Charlie

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