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Discussion Starter · #1 ·
Can you slow down a tile saw to a lower RPM?. I'm not sure if a rheostat would work or burn up the motor. Ideally I'd like to just plug the motor into this device and plug the device into an outlet. Also it's a Rigid saw, which probably has a motor similar to a Dewalt, rather than a continuous use type motor like a Baldor motor. I'd also be interested to know if anybody has done anything to slow down a Baldor too, so let's make the topic more general than just my needs, but please specify what type or model motor or tile saw you either got this to work on or messed up.

Another question is if the GFC circuit would interfere with doing this and trip if it gets a lower amount of signal (voltage).

Why would I want to do this? I'm told that a slower speed may help me reduce chip out and particularly reduce shattering when cutting tempered glass - another question I asked on a separate thread.

Another approach I'm probably going to use is to use a smaller blade - smaller circumference instead of lower RPM to reduce the feet per second going by the material being cut. I'll probably do both tricks if I can.

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Ken
 

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Discussion Starter · #5 ·
Guys, Thanks for helping me reduce the number of dumb things I could be doing. Much appreciated. I'm going to check one last source tomorrow before I throw this whole line of reasoning in the trash and just accept the fact that there's no way cutting tempered glass is happening on a tile saw.

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Ken
 

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Discussion Starter · #8 ·
Well, I think I'm going to go with a smaller diameter blade utilizing a 5" diameter blade. Since circumference is 2 * Pi * Radius, so going from a 5" radius to a 2.5" radius effectively halves the feet per second to a workable range for what I want to do - as opposed to pushing harder :)

Jeff thanks for a clear explanation. I might go to this too and just vary pulse widths to control RPMs. Very good! Now will this work with a GFC circuit or will the pulses trip the GFC?

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Ken
 
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