Author Topic: 4 inch rotary table  (Read 1047 times)

Offline tghs

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4 inch rotary table
« on: October 03, 2019, 05:29:15 PM »
I'm starting to think about adding a 4" or so rotary table to use with my LMS 3990 mini mill,, without breaking the bank,, any thoughts on the good, the bad and the ugly..
what the @#&% over

Offline crueby

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Re: 4 inch rotary table
« Reply #1 on: October 03, 2019, 05:30:48 PM »
The Sherline rotary table is a very nice one, you can pick them up used occasionally on Fleabay if you dont want to pay new prices. Small, but works very well.

Offline AOG

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Re: 4 inch rotary table
« Reply #2 on: October 03, 2019, 06:34:34 PM »
I agree the Sherline is the way to go for a mini mill. The biggest advantage it has is how short it is. A regular rotary table leaves you with very little room in the z axis once you add a chuck or faceplate.

Tony 

Online sco

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Re: 4 inch rotary table
« Reply #3 on: October 03, 2019, 07:04:12 PM »
I think it depends if you plan to use toe clamps to hold things on the table - 4" leaves precious little space for clamps which can get frustrating.  If you are going to mount a 4-jaw to the table then no problem.

Simon.
Ars longa, vita brevis.

Offline crueby

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Re: 4 inch rotary table
« Reply #4 on: October 03, 2019, 07:50:16 PM »
I think it depends if you plan to use toe clamps to hold things on the table - 4" leaves precious little space for clamps which can get frustrating.  If you are going to mount a 4-jaw to the table then no problem.

Simon.
I agree with that, for mine I made a rectangular plate with rows of threaded holes for larger parts.

Offline Kim

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Re: 4 inch rotary table
« Reply #5 on: October 04, 2019, 05:57:11 AM »
If you're looking for a small rotary table, I agree - the Sherline is the way to go.  Nice quality and works well.  Yes, 4" doesn't leave you a ton of room for clamping, but a 6" doesn't fit as well on a small mill.  I've loved my 4" Sherline, still use it often, even though I have a bigger 8" one now too. :)

Kim

Offline b.lindsey

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Re: 4 inch rotary table
« Reply #6 on: October 04, 2019, 04:55:52 PM »
Another vote for Sherline. Not cheap, but well made and versatile and can be used horizontally or vertically.

Bill

Offline GordonL

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Re: 4 inch rotary table
« Reply #7 on: October 04, 2019, 05:09:41 PM »
I made one and it works well. It is a lot of work but the experience that you gain is great.

http://www.deansphotographica.com/machining/projects/mill/rotary/rotary1.html

Offline bent

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Re: 4 inch rotary table
« Reply #8 on: October 04, 2019, 06:26:57 PM »
Nice writeup Gordon.  Bookmarked...for a maybe future project. :praise2:

Offline Firebird

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Re: 4 inch rotary table
« Reply #9 on: October 04, 2019, 07:18:08 PM »
Hi

When I bought a 4" table and tried it on my X1 mill there was very little room left so I carried out this mod

http://www.modelenginemaker.com/index.php/topic,3797.msg68969.html#msg68969

Unfortunately the photos are blurry (thanks to photosuckit) but you should be able to make out what I did

Cheers

Rich

Online mike mott

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Re: 4 inch rotary table
« Reply #10 on: October 04, 2019, 07:42:00 PM »
Gordon I just finished going through your build log of the rotary table, very nice I am always amazed by what can be done with a small lathe.

Mike
If you can imagine it you can build it

Offline Vixen

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Re: 4 inch rotary table
« Reply #11 on: October 04, 2019, 08:06:55 PM »
Make sure you can adjust out and eliminate any backlash in the worm/wheel gears. For some reason the effects of backlash can be more noticeable in the smaller rotary tables.

Mike
It is the journey that matters, not the destination

Offline crueby

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Re: 4 inch rotary table
« Reply #12 on: October 04, 2019, 10:09:49 PM »
The sherline table has an adjustment for it, two screws on the bottom to loosen the worm gear and tighten it up.

Offline GordonL

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Re: 4 inch rotary table
« Reply #13 on: October 04, 2019, 11:45:39 PM »
FYI. I built one but that was not my writeup. I just posted the link. Sorry, I did not mean to imply that it was my design.

Online steamer

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Re: 4 inch rotary table
« Reply #14 on: October 13, 2019, 01:43:53 AM »
http://www.modelenginemaker.com/index.php/topic,8712.0.html

Adapting a Sherline Rotary table to my Aciera F1

Dave
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Damned ijjit!