COMPRESSION BITS aftermarket

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1

anyone use compression bits? if so how do you like them?
I am just trying or wanting to not have so much extra work. Now I have not run a job just yet as all just got finally installed today as the spindle came fedex today.

But when in the software there are only Carbide bits listed and no after market bits listed at all.

Is there a way to import bits into the software?

2

Hey Jon do a search on adding tools and you will find lots of previous posts on it.

3

Love compression bits - a couple lessons learned, however.

  1. You must have a DOC as deep as the up-cut portion of the bit. Lower up-cut height is better to allow for a more shallow cut. I’ve cut at 0.25" DOC without issue, but eventually burned out my 65mm spindle.
  2. Longer bits reduce chatter GREATLY. 3" compression bits from a company like Highcountry Tools. 2.5" bits work fine, but you’ll have more chatter.
  3. A finishing pass of ~0.05" results in a flawless finish and will remove all chatter marks. I normally create a tool with a “fake” diameter of 0.3" which will give me a good stock-to-leave alternative. Then come in with a finishing full-depth pass tool.

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4

Yes, I use compression bits and really like them. For the tool database, I simply create a new tool for the cutter.

I also like to use my scrap pieces for test runs to fine-tune the speeds, feeds and DOC I’m comfortable with.

5

What is DOC? Is that depth of cut?
Brand new and brand new machine
Also can anyone point me to maybe a cheat sheet to what each bit types do? Or speeds depth step over or whatever I am sure somewhere is a chart

6

Yes, DOC stands for depth of cut.

Check out this link. There’s a lot of helpful information here—it’s definitely worth a read.

HTH.

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