Author Topic: 4 inch rotary table  (Read 1490 times)

Online tghs

  • Full Member
  • ****
  • Posts: 207
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

Online crueby

  • Full Member
  • *****
  • Posts: 10743
  • Rochester NY
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

  • Full Member
  • ****
  • Posts: 690
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

  • Full Member
  • ****
  • Posts: 1668
  • Location: Northants UK
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.

Online crueby

  • Full Member
  • *****
  • Posts: 10743
  • Rochester NY
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

  • Global Moderator
  • Full Member
  • *****
  • Posts: 4079
  • Portland, Oregon, USA
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

  • Global Moderator
  • Full Member
  • *****
  • Posts: 13837
  • Dallas, NC, USA
    • Workbench-Miniatures
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

  • Full Member
  • ****
  • Posts: 105
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

  • Full Member
  • ****
  • Posts: 490
  • Wet side of Washington State, USA
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

  • Full Member
  • ****
  • Posts: 1231
  • East Midlands UK
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

Offline mike mott

  • Full Member
  • ****
  • Posts: 417
  • Alberta Canada
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

Online Vixen

  • Full Member
  • ****
  • Posts: 1771
  • Hampshire UK
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

Online crueby

  • Full Member
  • *****
  • Posts: 10743
  • Rochester NY
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

  • Full Member
  • ****
  • Posts: 105
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

  • Global Moderator
  • Full Member
  • *****
  • Posts: 10806
  • Central Massachusetts, USA
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
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Offline Firebird

  • Full Member
  • ****
  • Posts: 1231
  • East Midlands UK
Re: 4 inch rotary table
« Reply #15 on: October 13, 2019, 08:34:28 AM »
Hi

I don't know if this will be any help, its my build of a 7" rotary table.

Unfortunately PHOTOSUCKIT have seen fit to blur all the photos

http://www.modelenginemaker.com/index.php/topic,2375.0.html

Cheers

Rich

Offline Mosey

  • Full Member
  • ****
  • Posts: 1594
  • Rosemont, New Jersey, USA
Re: 4 inch rotary table
« Reply #16 on: October 13, 2019, 03:08:34 PM »
Well, I guess it's time. My F1 is now for sale as I haven't used it in months.

Offline 90LX_Notch

  • Full Member
  • ****
  • Posts: 1451
  • North Eastern Pennsylvania USA
    • YouTube Channel
Re: 4 inch rotary table
« Reply #17 on: October 13, 2019, 04:05:54 PM »
Well, I guess it's time. My F1 is now for sale as I haven't used it in months.

I wish I could afford it Mosey.  You are so close to me, it would be easy to come and get it.

Bob
Proud Member of MEM

My Engine Videos on YouTube-
http://www.youtube.com/user/Notch90usa/videos