|Forum topic by Jerry||posted 01-08-2013 01:15 AM||778 views||0 times favorited||12 replies|
01-08-2013 01:15 AM
OK, so we have 2 powermatic 3 hp shapers, and 2 Grizzly 3 hp shapers. I have been running my panel cutter on my Grizzly, the newer Grizzly we own. Our older Grizzly runs the stick, our Powermatics run the cope and door lip.
So we are building 77 Mesquite doors. We ran 30+ panels on our Grizzly today and it really struggled, more than in the past. Yes, Mesquite is hard, and I will also say my cutter is slightly sharper than a butter knife :). Not really, but point is the cutter is not extremely sharp. When the cutter was brand new I could raise panels in walnut in one single pass. We use 5/8” panels.
So I decided to look at comparison between the PM and Grizzly shapers. I quickly noticed the PM motors are almost twice as large in diameter as what the motors are inside the Grizzly shapers. I have looked and although they are all 3 hp motors, the Leeson motors inside the powermatics state they are 16.5 amps, whereas the Grizzly motors are stated to be 12 amps.
This leads me to believe our powermatic shapers are 25% stronger than the Grizzly shapers. Am I correct in this thinking.
Tomorrow I am taking my panel cutter to get it sharpened, then I plan to install it on the powermatic shaper.
Any information about my observations is welcome.
-- Jerry Nettrour, San Antonio, www.topqualitycabinets.net