weight to speed? - Router Forums
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post #1 of 46 (permalink) Old 11-13-2019, 03:19 AM Thread Starter
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Default weight to speed?

Any body here know how to decide what speed a certain router bit should be used at? I'm contemplating buying a large diameter 1/2" bit but my makita router does not have speed control.
The manual just gives a vague "match weight to speed" but no specifics.
Any weight / speed charts out there?
I'd prefer actual charts rather than seat of the pants "feel
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post #2 of 46 (permalink) Old 11-13-2019, 05:10 AM
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here.....

.
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Attached Files
File Type: pdf Bosch 1617 Feeds+Speeds.pdf (324.8 KB, 44 views)
File Type: pdf FREUD BIT SPEED CHART.pdf (91.9 KB, 64 views)
File Type: pdf R5 ROUTER SPEEDS-BURNING.pdf (212.1 KB, 34 views)
File Type: pdf speedchart.pdf (294.5 KB, 65 views)
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post #3 of 46 (permalink) Old 11-13-2019, 05:16 AM Thread Starter
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Bad news week.
My router is non adjustable and the bit i wanted is supposed to run at half my speed.
Back to the xmas shopping lists.
Thanks
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post #4 of 46 (permalink) Old 11-13-2019, 06:05 AM
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if it isn't a soft start put an external speed controller on it...
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This would have been the week that I'd have finished chewing thru the restraints...
If only new layers hadn't been added....

Stick....
Forget the primal scream, just ROAR!!!
"SNORK Mountain Congressional Library and Taxidermy”
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post #5 of 46 (permalink) Old 11-13-2019, 08:26 AM
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I put this HF speed control on my woodpecker/porter cable router table:

https://www.harborfreight.com/router...rol-43060.html

Best $20 you can spend IMHO.

They also make momentary or maintained $15 foot pedals on off switches that are awesome for drill press etc.

https://www.harborfreight.com/search?q=foot%20pedal


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post #6 of 46 (permalink) Old 11-13-2019, 09:03 AM Thread Starter
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I like the idea of a soft start. But I can not find one suitable outside the USA.
Most of my equipment comes from the UK at 230 volts. My makita takes 13 amps, and the only UK controller i can find is 8 amps.

still not good news.
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post #7 of 46 (permalink) Old 11-13-2019, 10:00 AM
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What type of bit are you contemplating? If it's for raised panel doors, go for a vertical bit, it's far safer than a horizontal one spinning at around 15,000 rpm.
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Last edited by harrysin; 11-13-2019 at 10:10 AM.
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post #8 of 46 (permalink) Old 11-13-2019, 10:15 AM Thread Starter
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I found a 2 3/4" bottom cleaning bit, and a lock mitre bit, but they are big boys.
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post #9 of 46 (permalink) Old 11-14-2019, 12:34 AM
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Quote:
Originally Posted by sunnybob View Post
I found a 2 3/4" bottom cleaning bit, and a lock mitre bit, but they are big boys.
I bought this 3 3/4" Forstner bit for a one off project and in the drill press at it's lowest speed it scared me. A 2 3/4" router bit spinning at a suitable speed would also scare me and I'm not easily scared but am accident conscious.
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post #10 of 46 (permalink) Old 11-14-2019, 12:42 AM Thread Starter
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I cant work this out. In the USA, variable speed controllers for up to 15 amp machines are $20 or less.
In the UK, The ONLY controllers that take 15 amps are $70 and more.
The exact same pictures of the 15 amp on the amrican sites are used on the UK sites, but are then only rated for 8 amps.
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