Soft start and amp? - Router Forums
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post #1 of 14 (permalink) Old 03-11-2018, 05:19 PM Thread Starter
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Default Soft start and amp?

I am building a small workshop router table. Question .....my work wont be heavy, but I wish to know what minimal amps I could use and soft start. Any suggestions? Thanks a lot Dave Gale
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post #2 of 14 (permalink) Old 03-11-2018, 05:40 PM
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Soft start is really nice if you ever take the router out of the table. My old Hitachi used to give such a jolt on startup, it'd nearly rip my wrist off.
In the table, it isn't a problem ...

Amps are a question of the Wattage rating of your machine and the voltage supply.
Say a 1600W motor - at 240V would draw 6.66 A
at 110V would draw 14.55 A
at 400V would draw 4 A (not that I know of any routers that run on 400V)
Startup currents may be higher. Electronics in your tool may modify currents. These figures
are theoretical max draw for continuous use.

So it depends on where you live and how your shop is wired up. Here in NZ we have 240V and
my circuit breakers are 10A, except a few outlets for the heavier machines.
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post #3 of 14 (permalink) Old 03-11-2018, 05:52 PM
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Quote:
Originally Posted by David2543 View Post
I am building a small workshop router table. Question .....my work wont be heavy, but I wish to know what minimal amps I could use and soft start. Any suggestions? Thanks a lot Dave Gale
2~2½HP minimum router for the table... anything less will leave you wanting...
the amps will take care of themselves...

highly recommend the Bosch 1617EVS...

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 #4 of 14 (permalink) Old 03-11-2018, 07:29 PM
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1617 is great. I keep them for freehand use now, replaced in the table with a Triton TRA001, 3.25 hp. Build in lift and power to spare.

The more I do, the less I accomplish.
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post #5 of 14 (permalink) Old 03-11-2018, 09:45 PM
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David knowing where you are can make a huge difference on what the best answer. That’s one of the reasons we encourage people to fill out their profiles.

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 14 (permalink) Old 03-12-2018, 10:56 AM Thread Starter
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I live in northern calif. shop is 110/120 except for tablesaw which is 220 but of course wont be running while router is. Thank you
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post #7 of 14 (permalink) Old 03-12-2018, 01:08 PM
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Okay, North American makers usually state size as horsepower whereas in other countries they are often stated in watts instead which is a far more accurate method. I would agree with the statement that you want a minimum of 2 hp for a table. Many routers now come with above table adjustment, particularly the largest plunge routers. That feature can make using it a lot easier and more fun.
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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 #8 of 14 (permalink) Old 03-12-2018, 04:14 PM Thread Starter
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Thank you to everyone that will certainly make my choice much easier. Again thank you all
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post #9 of 14 (permalink) Old 03-12-2018, 06:46 PM
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Generally speaking the 'not very accurate' horsepower rating amounts to something between 725W and 750W

I found a converter online and it distinguishes between mechanical HP, electrical HP and metric HP (who would've thunk)

2hp varies between 1470W and 1496W according to that site, depending on what horses you're using. I bet a Clydesdale
would be more ....
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post #10 of 14 (permalink) Old 03-12-2018, 07:10 PM
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There are a few ways to calculate hp but the most accurate measure of all is output watts. That tells you what you have left after all the losses to d work with. There is no way that a 3+ hp router running on a single voltage circuit is the equivalent to a dual voltage 3 hp motor that I strain to lift these days. However, since all the manufacturers are lying more or less equally a 2 or 3 hp router from one company will be very similar to one of another company.
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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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