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by jschrempp
Tue Feb 24, 2015 12:42 am
Forum: Shopbot and Tormak
Topic: Speeds and Feeds
Replies: 0
Views: 2455

Speeds and Feeds

WIkipedia has a good page on speeds and feeds. In particular, you can get the cutting speeds for many materials using a high speed steel cutter. http://en.wikipedia.org/wiki/Speeds_and_feeds Missing from the Wikipedia table is Wood. The Cutting Speed for a soft wood, such as pine, is 1000 feet per m...
by jschrempp
Tue Feb 24, 2015 12:44 am
Forum: Shopbot and Tormak
Topic: Bits
Replies: 1
Views: 1845

Bits

The more flutes a bit has, the more heat it generates.

Typical flutes for materials:

Plastic: 2
Wood: 1 or 2
Aluminum: 2
Steel: 4
by jschrempp
Tue Feb 24, 2015 12:46 am
Forum: Shopbot and Tormak
Topic: Bits
Replies: 1
Views: 1845

Re: Bits

Dan-Mar Tools is a good source of bits
907 American Street, San Carlos, CA 94070
Phone:(650) 591-2651
by jschrempp
Tue Feb 24, 2015 12:48 am
Forum: Shopbot and Tormak
Topic: Problems when cutting
Replies: 0
Views: 3735

Problems when cutting

If your wood part smokes, then either increase the feed rate or slow the spindle RPM.

If you hear screeching, they you are feeding to fast - or too slow. Try slowing the feedrate first. If that doesn't work, then increase the feed rate a bit.

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