Clamping slot widths in machines

Clamping slot widths in machines

This topic has 9 replies, 8 voices, and was last updated 22 February 2018 at 18:10 by Vic.

Viewing 10 posts - 1 through 10 (of 10 total)

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22 February 2018 at 10:07 #342716
Brian Wood
Participant
@brianwood45127
A new challenge for answers please.

What are the common widths for machine tool clamping slots; I include mills, lathes, shapers and anything else in that nature?

This is oddly enough a serious question, I can provide a few answers from my own equipment, but there are machines that are different to mine that are bound to have different sizes that I don't have knowledge of

Regards

Brian

[Edited for punctuation error]

Edited By Brian Wood on 22/02/2018 10:09:10
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22 February 2018 at 10:07 #18857
Brian Wood
Participant
@brianwood45127
22 February 2018 at 10:26 #342719
Chris Evans 6
Participant
@chrisevans6
I have used tiny machines with 10mm slots/8mm bolt up to Plano Mills with 1 1/4" slots/1" bolts. I suppose the most common is a 16mm/5/8" slot and 12mm/1/2" bolt.
22 February 2018 at 11:50 #342726
Tim Stevens
Participant
@timstevens64731
There does seem to be a wide range of similar hobby mills (etc) with slots 12mm wide – for M10 fasteners.

Cheers, Tim
22 February 2018 at 12:55 #342732
Mike Poole
Participant
@mikepoole82104
Rotagrip supply tee nuts for 5,6,8,10,12,14,16,18,20,22,24,28,30,32,36,42,48,54, quite a range and I assume they stock them because people buy them. I doubt that the machines in most hobby workshops will use anything bigger than 16mm but I expect most of the smaller sizes will be used somewhere if you count rotary tables and such equipment. Imperial machines will probably have the same range of sizes.

Mike
22 February 2018 at 13:07 #342734
JasonB
Moderator
@jasonb
My Unimat 8 has 8mm slots for M6 fixings, Rotarry tables 10mm slots for M8 and the X3 , SX2.7 and WM280 have 12mm slots for M10.

And just to complicate things some have different depths to both the wide part of the tee and also the top harrow section so a nut that fits one 12mm slot may not fit another 12mm slot.
22 February 2018 at 15:02 #342748
Michael Gilligan
Participant
@michaelgilligan61133
**LINK**

https://www.iso.org/obp/ui/#iso:std:iso:299:ed-2:v1:en
22 February 2018 at 15:38 #342753
colin hawes
Participant
@colinhawes85982
I have two imperial machines which have 1/2" slots, a shaper and a horizontal mill. Colin
22 February 2018 at 17:34 #342770
Brian Wood
Participant
@brianwood45127
Gentlemen,

Thank you all for your efforts, I had no idea the range was so extensive. You have given me all I need to know.

Kind regards

Brian
22 February 2018 at 18:10 #342776
Vic
Participant
@vic
I’ve had two milling machines and commonly available Tee nuts were a very poor fit. Luckily making your own is easy and is good machining practice to boot.
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