I've been asked if it's possible to use carbide tipped dry cut saw blades in a chop saw. No, it destroys the expensive blades too quickly. But what if we slow the chop saw down with diodes? Support the channel with a Clever Shop Ruler http://etsy.me/2mN8XfC
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Haha best part is the beginning when he was changing the blade 😀
The current will also increase for the same power output and these aren't rated for such high current.
A Canadian complaining about bolts being metric. Hahah
I love Canadians 😂 😂 Cheers from Australia!
variable frequency drive could work?
I could listen to you swear all day and then join in.
Gotta use your head literally to hold that blade guard up.
“Your eyebrows might grow together”! Great joke after a visual primer!
Lmao the electroboom reference
Started laughing like a madman the moment he does the king of random cut. Wow
Pwm
you forget, heat scales with current. P = I^2*R – that R is all windings and that P is all heat. so it was never gonna work. gearing it down is probably your best bet unless there's some fuckery you can do with rewinding those motors.
and yeah, half-rectifying it was always only gonna reduce power, not speed. fairly surprised you didn't burn your variac as well – you can do serious welding on 40A.
but hey if you really need it for some reason, can always put your full body weight on it. 200 pound gorilla ought to slow her down enough.
I had to cut some 1/2" sheet steel. My Plasma cutter just wasn't clean enough so I used a metal blade in my Milwaukee worm drive with full body protection. Boy o boy did the spark fly and cut it like butter for a total of about ten feet. Clean cut and didn''t have to do a ton of grinding. I'll be doing that more often but respecting the blades life as well as my own.
Full wave bridge rectifier where you were using just a half wave. However, you still need to stay cognitive to the heating of the motor.
You'd need to reduce frequency not voltage for reducing speed on an AC motor. So, go get yourself a VFD, or a DC motor, lol
The way to reduce rpm on series wound is to reduce the voltage. Other resistive regulators such as resistors or shunts cause loss of power because of the voltage drop increase as soon as you apply mechanical resistance on blade. With diodes you lost half of power per each cycle.
The smell probably was from your xfmr cause your saw should have thermal protection and meant to be overloaded from time to time.
I converted my Bosch mitering saw to metal cutting with half of rpm. I just installed 3kVA xfmr and have about 60VAC on secondary, never had an issue and yes amps on secondary will go hi but they go just as high on 120VAC when u apply force. The only difference is the xfmr allows u get more amps out of your circuit through the turn ratio before your breaker trips at the panelboard