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Router bit cabinet - bit speeds

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Forum topic by leftcoaster posted 11-25-2017 01:40 PM 325 views 0 times favorited 3 replies Add to Favorites Watch
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leftcoaster

190 posts in 716 days


11-25-2017 01:40 PM

When I buy a bit, there’s information on the packaging about the speed to use for that size bit. How do folks who have made router bit cabinets keep track of this? Same with sizes – do you label them in the cabinet? Pictures appreciated!


3 replies so far

View JBrow's profile

JBrow

1275 posts in 760 days


#1 posted 11-25-2017 03:45 PM

leftcoaster,

I tend to run router bits slow, taking multiple passes with a final cleanup the cut. Therefore remembering appropriate speeds for each bit is not something I track. I included some info, of which you may already be aware, regarding maximum router bit speeds at the end of this post.

However regarding labeling router bits, I have some bits that would require too much time to figure out what the router bit will do. For example, it requires a close look to notice that a straight bit is actually a shear angle bit, that a router bit is a down-cut or up-cut spiral, or plywood dado bits. For these bits I label the router cabinet bit storage location for these bits. I simply used a Sharpie to record the info on the bit holder. The photo shows an example of my labeling method. Perhaps this method would work to keep track of router bit speeds, where 10 would mean 10,000 rpm.

Generally accepted router bit speeds.

There are a number of web sites which offer maximum router bit speeds relative to the large diameter of the router bit. Although the recommendations for maximum speed vary, the maximum speeds are fairly consistent. The Wood magazine article also discusses troubleshooting routing results versus speed.

http://www.rockler.com/how-to/router-bit-speed/
https://www.mlcswoodworking.com/shopsite_sc/store/html/smarthtml/pages/techfaq.htm
https://www.woodmagazine.com/woodworking-tips/techniques/routing/speed

Carbide Processors offer no speed chart, but discuss how one can know when the router speed is correct.

http://blog.carbideprocessors.com/uncategorized/choosing-the-correct-speed-for-your-router-bits/

View Madmark2's profile

Madmark2

373 posts in 428 days


#2 posted 11-25-2017 06:06 PM

The goal is to keep the radial velocity constant. Bits 1” in dia or less can run at full speed, 2” or less 1/2 speed, anything larger on the lowest speed.

On the straight bits you can just see the o-rings that I use to keep the bits from bottoming out in the collet.

M

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leftcoaster

190 posts in 716 days


#3 posted 11-25-2017 07:44 PM

Thanks !

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