Hi, stupid question: if I make the drive wheel smaller, would the rpm increase? I am curious to know it, because I saw on youtube so many people using a dry grinder with the paper wheels, but to achieve that, you need at least an rpm speed that goes beyond 800. So I bought a TSO (Tormek shaped object), and I like it, but I find it quite slow (rpm around 100), certainly it's not fast enough for honing with mdf wheels. On the other hand, is difficult to find a slow speed dry grinder, so I thought if it's possible to change speed in my wet grinder, by reducing the size of the drive wheel. Any ideas?
Increasing Tormek speed rotation
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NickWelford
So many tools, so little to show
Smaller drive wheel equals slower. Need to increase drive wheel size, but seems an odd thing to do.
You mean increase the diameter of the motor or the drive wheel spindle? There are two splindles in the tormek, one is the motor spindle (which runs at about 2800 rpm), the other is the drive wheel (the rubber wheel, which runs at about 100 rpm). Let's not confuse the rpm with peripheral speed. The rpm doesn't change, whether you are close to the centre or close to the edge of the wheel, the rpm stays always the same. So basically if you make the rubber wheel smaller, and make the motor spindle thicker (with masking tape), I suppose that the rpm on the rubber wheel would increase. But if you make the rubber wheel bigger, its rpm would decrease.
I am planning on making a new smaller drive wheel, made of wood, and stick some electrical tape on the edge to make it rubberised, and finish it with a very thin line of epoxy glue as a friction ring. Then I would make the motor spindle bigger with some masking tape.
My goal is to use a wooden wheel charged with rouge, instead of the stone wheel. Why? Because it's fast, cheap, and a stone wheel can't achieve that polish mirror. Now, I have to decide how big will the drive wheel be...
I am planning on making a new smaller drive wheel, made of wood, and stick some electrical tape on the edge to make it rubberised, and finish it with a very thin line of epoxy glue as a friction ring. Then I would make the motor spindle bigger with some masking tape.
My goal is to use a wooden wheel charged with rouge, instead of the stone wheel. Why? Because it's fast, cheap, and a stone wheel can't achieve that polish mirror. Now, I have to decide how big will the drive wheel be...
blackrodd
Established Member
Maybe this will explain it,- I hope you're not offended!
Regards Rodders http://www.technologystudent.com/gears1/pulley2.htm
Regards Rodders http://www.technologystudent.com/gears1/pulley2.htm
Tired of experiments, hehe, I learnt anyway that Tormek has to be slow, and trying to use rouge compound is useless at that speed. I was always intrigued by how fast it is to sharpen tools with a low speed grinder, like in these two clips
https://www.youtube.com/watch?v=lliGsi6XbbE
https://www.youtube.com/watch?v=C2yJnN_aFBg
But I can achieve the same mirror polish with my Tormek clone, not with the stone wheel, and not with the rouge, but with the sandpaper. I glue sandpaper, grit 1000, all over the wooden wheel, I can sharpen tools in just two minutes, and flatten comfortably also the blade's back. Using the rouge is impossible at low speed, but for the moment I will stick to this technique: Tormek clone+wooden wheel+sandpaper grit 1000.
https://www.youtube.com/watch?v=lliGsi6XbbE
https://www.youtube.com/watch?v=C2yJnN_aFBg
But I can achieve the same mirror polish with my Tormek clone, not with the stone wheel, and not with the rouge, but with the sandpaper. I glue sandpaper, grit 1000, all over the wooden wheel, I can sharpen tools in just two minutes, and flatten comfortably also the blade's back. Using the rouge is impossible at low speed, but for the moment I will stick to this technique: Tormek clone+wooden wheel+sandpaper grit 1000.
