Model Engine Maker

Supporting => Tooling & Machines => Topic started by: pgp001 on December 01, 2013, 07:08:34 PM

Title: Pultra Quick Change Tool Post
Post by: pgp001 on December 01, 2013, 07:08:34 PM

I decided to make one of these for my little Pultra lathe, it is a design that I have seen elsewhere and just modified a few dimensions to suit my application.

Actually I made a few sets whilst I had the machines set up, so what you see is enough parts for four of them on the go. Some of these may end up on ebay soon.

1¼" square blocks marked up for drilling etc

(http://i456.photobucket.com/albums/qq286/pgp001/Model%20Engineering/Various%20Tooling/Pultra%20Lathe/Pultra%20QCTP/workshop01422-11-13_zpse6cf3c41.jpg) (http://s456.photobucket.com/user/pgp001/media/Model%20Engineering/Various%20Tooling/Pultra%20Lathe/Pultra%20QCTP/workshop01422-11-13_zpse6cf3c41.jpg.html)

Machining the dovetails on the tool holder material.

(http://i456.photobucket.com/albums/qq286/pgp001/Model%20Engineering/Various%20Tooling/Pultra%20Lathe/Pultra%20QCTP/workshop00622-11-13_zpsd4dda6fc.jpg) (http://s456.photobucket.com/user/pgp001/media/Model%20Engineering/Various%20Tooling/Pultra%20Lathe/Pultra%20QCTP/workshop00622-11-13_zpsd4dda6fc.jpg.html)

My prefered method of measuring dovetails.

(http://i456.photobucket.com/albums/qq286/pgp001/Model%20Engineering/Various%20Tooling/Pultra%20Lathe/Pultra%20QCTP/workshop01622-11-13_zps273fc519.jpg) (http://s456.photobucket.com/user/pgp001/media/Model%20Engineering/Various%20Tooling/Pultra%20Lathe/Pultra%20QCTP/workshop01622-11-13_zps273fc519.jpg.html)

Reducing tool holders to finished height on the shaper.

(http://i456.photobucket.com/albums/qq286/pgp001/Model%20Engineering/Various%20Tooling/Pultra%20Lathe/Pultra%20QCTP/workshop00224-11-13_zpsc122b372.jpg) (http://s456.photobucket.com/user/pgp001/media/Model%20Engineering/Various%20Tooling/Pultra%20Lathe/Pultra%20QCTP/workshop00224-11-13_zpsc122b372.jpg.html)

Making good progress now.

(http://i456.photobucket.com/albums/qq286/pgp001/Model%20Engineering/Various%20Tooling/Pultra%20Lathe/Pultra%20QCTP/workshop00126-11-13_zps3c6bc5b2.jpg) (http://s456.photobucket.com/user/pgp001/media/Model%20Engineering/Various%20Tooling/Pultra%20Lathe/Pultra%20QCTP/workshop00126-11-13_zps3c6bc5b2.jpg.html)

Cutting the slot for the tool bit with 1/4" side and face cutter.

(http://i456.photobucket.com/albums/qq286/pgp001/Model%20Engineering/Various%20Tooling/Pultra%20Lathe/Pultra%20QCTP/workshop00226-11-13_zps472ef2d5.jpg) (http://s456.photobucket.com/user/pgp001/media/Model%20Engineering/Various%20Tooling/Pultra%20Lathe/Pultra%20QCTP/workshop00226-11-13_zps472ef2d5.jpg.html)

Slitting the main block with a 1/16" slitting saw

(http://i456.photobucket.com/albums/qq286/pgp001/Model%20Engineering/Various%20Tooling/Pultra%20Lathe/Pultra%20QCTP/workshop00127-11-13_zps1c023ff4.jpg) (http://s456.photobucket.com/user/pgp001/media/Model%20Engineering/Various%20Tooling/Pultra%20Lathe/Pultra%20QCTP/workshop00127-11-13_zps1c023ff4.jpg.html)

(http://i456.photobucket.com/albums/qq286/pgp001/Model%20Engineering/Various%20Tooling/Pultra%20Lathe/Pultra%20QCTP/workshop00227-11-13_zps50986dad.jpg) (http://s456.photobucket.com/user/pgp001/media/Model%20Engineering/Various%20Tooling/Pultra%20Lathe/Pultra%20QCTP/workshop00227-11-13_zps50986dad.jpg.html)

Finally finished.

(http://i456.photobucket.com/albums/qq286/pgp001/Model%20Engineering/Various%20Tooling/Pultra%20Lathe/Pultra%20QCTP/workshop00301-12-13_zpscad11071.jpg) (http://s456.photobucket.com/user/pgp001/media/Model%20Engineering/Various%20Tooling/Pultra%20Lathe/Pultra%20QCTP/workshop00301-12-13_zpscad11071.jpg.html)

(http://i456.photobucket.com/albums/qq286/pgp001/Model%20Engineering/Various%20Tooling/Pultra%20Lathe/Pultra%20QCTP/workshop00101-12-13_zps2ed301b5.jpg) (http://s456.photobucket.com/user/pgp001/media/Model%20Engineering/Various%20Tooling/Pultra%20Lathe/Pultra%20QCTP/workshop00101-12-13_zps2ed301b5.jpg.html)

(http://i456.photobucket.com/albums/qq286/pgp001/Model%20Engineering/Various%20Tooling/Pultra%20Lathe/Pultra%20QCTP/workshop00501-12-13_zpsfe563fdb.jpg) (http://s456.photobucket.com/user/pgp001/media/Model%20Engineering/Various%20Tooling/Pultra%20Lathe/Pultra%20QCTP/workshop00501-12-13_zpsfe563fdb.jpg.html)

Phil

Title: Re: Pultra Quick Change Tool Post
Post by: steamer on December 01, 2013, 07:11:13 PM

I like that a lot Phil! :ThumbsUp:

I think you will enjoy using it!

I made a copy of a Hardinge QCTP for my Old Atlas years ago....and it really transformed the usefulness of the lathe!

Dave

Title: Re: Pultra Quick Change Tool Post
Post by: Jo on December 01, 2013, 07:22:18 PM

Nice  8)

Whilst you were at it did you make any extended tool holders for between centres turning  :mischief:

Jo

Title: Re: Pultra Quick Change Tool Post
Post by: pgp001 on December 01, 2013, 10:16:48 PM

Jo

I made them all extended slightly, the main block is 1¼" square and the holders are 1½" long so they overhang by 1/8" each end.
I also made a few blanks with no tool groove that I might bore out so I can use round HSS as a boring tool.

Phil