adjustable (QCTP) tool post

[BazyleParticipant @bazyle]

Just seen an ad for a multipostition ie multifix clone and see the rotational increment is 40 positions or 9 degrees. This is problematic as when you rotate the topslide for screwcutting it doesn't match up with the rotation requirements for 47.5, 55, or 60. Why would someone design it like this?

[JasonBModerator @jasonb]

Multifix are commercial toolposts, commercial users tend not to bother turning the topslide, I usually don't rotate it.

Should be easy enough to turn 3 clicks giving 27deg and set the tool at a slight angle in the holder to make up the other 2.5deg so tool is square to the work if you are that way inclined. Or just set the topslide over to 27deg it does not have to be 29.5 for a 60deg thread, just means the back of the tool is cutting a fraction more.

 

Edited By JasonB on 02/07/2016 18:30:21

[Martin NewboldParticipant @martinnewbold]

Dear All,

I had a look at my saddle today and there seems quite a bit of room I believe its a ML7 saddle afte rfitted to my Drummond. I am still favouring at least two tool holders and still in favour of the T1 T2 type , do the two tool holders in the older types hold on properly

 

Cheers

 

Martin

Edited By Martin Newbold on 03/07/2016 20:33:44

[BazyleParticipant @bazyle]

Posted by Martin Newbold on 03/07/2016 20:32:05:

do the two tool holders in the older types hold on properly

Not sure what you mean here.

The main types are Multi…., Dickson, Piston and Wedge and the sizes. Be careful about using T1, T2 as a type as that is normally the size for Piston/Wedge type. I previously had not seen T2 used for the Dickson type but now notice one major supplier is using that for their Dicksons while not giving size classifications for their Piston type.

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