finish

downeast

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Feb 24, 2018
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7
why am I not getting a nice finish on my work on my lathe bought a new 8x16 mini that seems to be nice quality and smooth the only thing that concerns me is that when I increase the turning speed the feed rate also increases the book that came with it doesn't give me a lot of info wonder if changing the gears would slow the feed rate down or are they only for thread cutting any ideas would be helpful after fifty years I am having to pretty much having start all over again
 

Doubleeboy

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Dec 3, 2014
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if you want a slower feed, you need to change a gear. That said the Harbor Freight type mini lathes have a very fast feed IMO. A lot of folks use a small electric motor mounted on end of lead screw to power the feed so they can get a very slow feed. If you do an internet search it will show up, or go to yahoo groups mini lathe group and read all about it. Its a motor for animation devices and turns ridiculously slow but it works great for slow feed on mini lathe. I have seen one operate, it works quite nice. Micro Mark sells the motors or buy from China on ebay or aliexpress.
 

mikey

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Dec 20, 2012
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6,433
Downeast, welcome to HM.

Your question has a LOT of elements to it - why am I not getting a good finish?

In order to help you, we need more info:
  • What kind of tools are you using? Brazed or inserted carbide or HSS?
  • How are they held - quick change tool post, 4-way post?
  • Is your tool actually on center height?
  • What kind of material are you cutting and at what speed and feed?
  • Does the finish improve if you feed manually?
Poor finishes have MANY sources. Pics, more info and I'm sure we can help.
 

downeast

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Feb 24, 2018
Messages
7
changed gearing and it slowed my feed down so the finish is looking much better am using both inserted and brazed carbide thanks for the info
 
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