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post #1 of 11 (permalink) Old 01-02-2014, 03:51 AM Thread Starter
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Smile little help

Hi , first post , so hi and thanks in advance.
I have a Makita router 1500 watt , 1/2 inch and i wish to trim the edge of an aluminium T section 4mm thick.
I have a carbide straight bit that reccomends 14000 RPM for Ali and non ferrous.
The router works at 22000 RPM
Can i use it at that speed OR can i use a light dimmer switch to adjust RPM.
What should i know before i possibly win this years Darwin Award.
Regards
Spuddo
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post #2 of 11 (permalink) Old 01-02-2014, 06:43 AM
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Geoff your are correct as a light dimmer is just a rheostat and that is also what a router speed controller also is, the thing is that a light dimmer could never handle the 1500watts that your router will draw so it will 100% burn out the dimmer, also the router may be damaged, if you don't care that much about the cutter, and you don't intend to do that much cutting, then just do it at full speed and cut slowly, I have looked at this issue of speed controllers for 1500/2500 watts and there are not to be bought here in Australia, there are some in the USA that are quite cheap but they are made for 110volts, there is one from the UK that looks like the USA ones and it can run at 220volts so you should look for that one and see if it will run at 240, there is also a very good unit that can be bought from Jay-car as a kit for about $100au however you have to assemble the kit yourself or pay to have it done, best of luck Neville
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post #3 of 11 (permalink) Old 01-02-2014, 07:22 AM
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Welcome to the club Spuddo - you might try your drill-press on the aluminum with a clamp-on fence and taking 2mm @ a time. I do this on a regular basis when I do not want to crank up my 1960's Bridgeport mill. Normally I use a end-mill with side cutting but I have used a regular router straight bit at 3500 rpm. Another option is go to AliExpress.com - Online Shopping for Electronics, Fashion, Home & Garden, Toys & Sports, Automobiles from China. and search for "router speed control" - the Australian cost is under 50$ including shipping. Speed controllers come in several varieties, rheostat , triac, etc. If you have a speed dial on the router, you are stuck and any external speed controller is likely to the fry the router electronics.

Hope this helps - Baker
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post #4 of 11 (permalink) Old 01-02-2014, 12:17 PM
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greetings Geoff
welcome to the router forum

Looking forward to your participation.
Filling out your profile to include (first name,tools and short bio is strictly (optional )but does help members to better relate to each other.
Thank You John
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post #5 of 11 (permalink) Old 01-02-2014, 12:52 PM
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Welcome to forum Geoff. I would agree with Richard and go the drill press method. I have read about many using the router to machine metal but the thought of a metal chip or two making it to the inside of my router makes me paranoid and I consider it not worth the chance. Maybe I'm just paranoid. Carbide bits will do the job but you can buy milling bits from China fairly cheap that have a coating on them especially for milling aluminum that helps prevent the aluminum from sticking to the bit.

Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.
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post #6 of 11 (permalink) Old 01-02-2014, 03:50 PM
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Hi Geoff welcome to the forum

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Get your facts first, then you can distort them as you please.
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If you choose to poke at a bee hive, be prepared to get stung.
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post #7 of 11 (permalink) Old 01-02-2014, 04:24 PM
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Howdy, Spuddo.
I make neon (and wood to support the tubes) The trick for an electric motor (as a neon transformer, also) is they are inductive devices. Thus a speed or brightness control for them is a fan speed control for the rest of us. Dimmers are for resistive loads. Be a bit spendy to get a fan speed control that will handle 12 amps. Harbor Freight sells (or did) one such. The bit should work at 22,000 rpm, anyway. Just feed it slowly. Enjoy, Tim
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post #8 of 11 (permalink) Old 01-02-2014, 08:41 PM
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Welcome to the forum Geoff.

Ross,
Rockhampton, Queensland, Australia


Enjoy the knowledge of others that can be found within.

‘Members are requested to add a first name in their profile as we are a very friendly bunch here'.
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post #9 of 11 (permalink) Old 01-02-2014, 09:49 PM
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http://www.harborfreight.com/router-...rol-43060.html

Hope this helps.

Last edited by Duane Bledsoe; 01-02-2014 at 09:51 PM.
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post #10 of 11 (permalink) Old 01-03-2014, 01:13 AM
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That won't help him Duane. They have a different power system than we do in North America.

Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.
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