Tex-VA
Cast Iron
- Joined
- Jan 16, 2008
- Location
- Northern VA - USA
I have cut metric threads on an inch lathe before and posted the process I used a while back. http://www.practicalmachinist.com/vb/south-bend-lathes/cutting-metric-threads-156039/ I needed to cut some more metric threads and see this as a chance to use the Metradial.
I'm converting a Sieg X-3 mill to a CNC mill. I, also, want to change the spindle to a belt drive and do away with the quill. There's not much room for a pulley on the spindle after I remove the spline but my friend Steve Stallings had a good idea he shared with me. The spindle has about three quarters inch of threads that have the nut for loading up the bearings and a jam nut to keep the first nut from losing. I plan to replace the first nut with a pulley then lock it in place with the second nut.
http://i260.photobucket.com/albums/ii1/Tex-VA/X3 Mill Spindle Pulley/DSCN2182.jpg
http://i260.photobucket.com/albums/ii1/Tex-VA/X3 Mill Spindle Pulley/DSCN2181.jpg
The threads are 1.5 mm pitch with a diameter of 1.050 inch, 26.670 mm (weird size) and I plan to cut them on a South Bend 10L. I have the transpose gears and a Metradial I bought from Rose when she worked with Ted (SouthBendLatheMan).
Photo of Metradial and a inch/metric feed screw mic I haven't installed:
http://i260.photobucket.com/albums/ii1/Tex-VA/X3 Mill Spindle Pulley/DSCN2149-1.jpg
The first thing I needed to do was make some kind of mount for the Metradial:
http://i260.photobucket.com/albums/ii1/Tex-VA/X3 Mill Spindle Pulley/DSCN2153.jpg
http://i260.photobucket.com/albums/ii1/Tex-VA/X3 Mill Spindle Pulley/DSCN2154-1.jpg
I'm converting a Sieg X-3 mill to a CNC mill. I, also, want to change the spindle to a belt drive and do away with the quill. There's not much room for a pulley on the spindle after I remove the spline but my friend Steve Stallings had a good idea he shared with me. The spindle has about three quarters inch of threads that have the nut for loading up the bearings and a jam nut to keep the first nut from losing. I plan to replace the first nut with a pulley then lock it in place with the second nut.
http://i260.photobucket.com/albums/ii1/Tex-VA/X3 Mill Spindle Pulley/DSCN2182.jpg
http://i260.photobucket.com/albums/ii1/Tex-VA/X3 Mill Spindle Pulley/DSCN2181.jpg
The threads are 1.5 mm pitch with a diameter of 1.050 inch, 26.670 mm (weird size) and I plan to cut them on a South Bend 10L. I have the transpose gears and a Metradial I bought from Rose when she worked with Ted (SouthBendLatheMan).
Photo of Metradial and a inch/metric feed screw mic I haven't installed:
http://i260.photobucket.com/albums/ii1/Tex-VA/X3 Mill Spindle Pulley/DSCN2149-1.jpg
The first thing I needed to do was make some kind of mount for the Metradial:
http://i260.photobucket.com/albums/ii1/Tex-VA/X3 Mill Spindle Pulley/DSCN2153.jpg
http://i260.photobucket.com/albums/ii1/Tex-VA/X3 Mill Spindle Pulley/DSCN2154-1.jpg
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