SOFT START for Servo Motors

[DonInReno]

There’s no arguing that a big 3hp, or 4hp, or even 5hp cabinet saw (heavy stationary table saw) is the Cadillac of saws and every cabinet shop and furniture maker should have one.  

However, for professional finish carpenters who build onsite there is nothing more ideal than one of the 15 amp portable saws with universal brushed motors.    A universal motor will draw more amps the harder it’s pushed and the little 15 amp Mikita 2703 saw that I prefer is direct gear drive between motor and blade and will easily trip a 20 amp breaker when ripping thick material.   When scratch building something like a big oak staircase, or custom cabinets for an entire house it may run 6-7 hrs a day for a week ripping material to size.   Other than changing cords and a set of brushes I tend to get 4 or 5 years out of them before the bearings for the blade get a little loose - I’m on the 5th one.  Once there were 6 of us cabinet makers building custom cabinets and bars for an entire year as part of a casino renovation - we all have our own style and equipment, but we all used similar portable saws.

I do admit it would be nice to have a big heavy cross cut sled, but the new track saws have been almost as accurate and fast if the user has a clear head and good technique.

Ave has a great video showing a 12 amp Dewalt grinder and how many amps it draws under load...at one point in testing it even trips a 20amp breaker.    After this tool review I picked up one of these grinders and it’s been a great purchase.

 

[Constabulary]

7 hours ago, dikman said:

there is no rule that states a table saw must be large and have an induction motor.

agree - same with sewing machines - domestic sewing machines are still sewing machine even when they do not suit our own requirements.

[dikman]

Yep, horses for courses, as they say.

Hmmm, soft start on a domestic machine?