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Old 05-28-2017, 06:10 AM   #11 (permalink)
 
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Depends on material and cut making


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Old 05-28-2017, 06:51 AM   #12 (permalink)
 
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I have a 2 hp lathe with 2 pulley settings. I do most all turning on the slower high torque setting. With variable speed, I seldom need to change the pulley.

Have done hundreds of pens and never had a problem attributed to lack of speed. If anything, too much speed with some chippy materials. Specs say I am getting about 2000 rpm.

Lack of vibration with the big lathe is the big plus. (I have a Jet 1014 vs where I snowbird so I know the difference).
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Old 05-29-2017, 03:00 PM   #13 (permalink)
 
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Quote:
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Quote:
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Depends on material and cut making





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Just depends on what you are turning and what material and what step in the process


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Old 05-29-2017, 03:40 PM   #14 (permalink)
 
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If the belt changing schematic on my Delta midi is correct, my top speed is 4000 rpm. That's what I turn at. No problems.
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Old 05-29-2017, 05:09 PM   #15 (permalink)
 
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Coy,

As you shop, do not neglect the bottom end speeds. While some like to use abrasives or emblishments at high speeds, I find I get better results and avoid heat checks and softening with slower speeds on the lathe -- letting the abrasive do the work, or doing the embilishment treatment at slow speeds with better control.

Spindle lock (different from index pin) is handy too.
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Old 06-06-2017, 07:56 PM   #16 (permalink)
 
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I agree with coysquiggly, keep your tools as sharp as you can. I've turned at lots of different speeds. But usually at around 1800.
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Old 06-07-2017, 11:28 AM   #17 (permalink)
 
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I turn between 1100 and 2800 because I have a 3 step pulley variable speed lathe and I can do everything at the middle pulley position. I turn, sand and apply CA in that range.
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Old 06-07-2017, 11:56 AM   #18 (permalink)
 
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I have 3 lathes and live by the motto you can turn small on a large lathe but you cant turn large on a small one. mine are a 9",13" and a 16"
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Old 06-07-2017, 12:48 PM   #19 (permalink)
 
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I'm quite happy making pens with the spindle turning anywhere above 500 rpm. (I prefer it higher, usually between 1,500 and 2,500 but it doesn't matter to me.) To say you *must* have 3,000 rpm is ridiculous.
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Old 06-08-2017, 12:56 AM   #20 (permalink)
 
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I can't understand why people turn so fast. I turn my pens at 1400 and never have a problem. I go to 1800 for final polishing. My last resin blank I turned, I ran the lathe at 700 rpm and had no problems at all. With sharp tools and proper technique, just about any speed will work.


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