Like most of the little projects I did, I've the drawings drawn on my notebook as 3D models so that I can visualise how things fit together. The raw materials were cleaned up and cut to size to prepare for marking.
Enough of writing. Time for pics...
|I measure the thickness of the steel stock and realised that it is not the 3/8" as shown in the drawing. Same goes for the width, which is narrower than the 1" dimension given in the drawing. I supposed these are not critical.|
|Cleaning one side of the stock to use as reference.|
|Marking out the other end to mill stock to length. This was the maiden "scribe" by my brand new Mitutoyo Height Gage.|
I can't be more than happy with what I see on the caliper. This is important to me as I've not been able to "hit the mark" on the mill since I started the hobby. Hoping to see more accurate work!
|Marking out the holes and the area to be milled. I used the permanent marker as "layout fluid". Tried shipping in Dykem but my order was held in US and can't be shipped.|
|Need to improve on using the punch. Would the optical punch help? Tried correcting by "moving" the punch marks as shown in some YouTube vids - not much of an improvement.|
|Drilling with 6.4mm drill for 5/16" BSF. Took quite a while to drill through. There was quite some vibration felt during the process, prompting me to reduce spindle speed and ease the feed.|
|Hole done. Not very round isn't it...|
|Tapping the hole. The spindle with a dead centre was used to start the thread.|
|The Z axis was lowered while the tap was turned using a wrench on the collet chuck.|
|Thread done and tested with a 1/4" BSF cap screw that came with the kit. I don't have anything BSF at home to test the 5/16" BSF though. It is meant for the threaded end of the half centre.|
|The surface was then cleaned of chips and oil. I redid the layout of the recessed area as the dye of the marker was washed away by the cutting oil.|
|I was a little nervous when milling the recess. My last work in steel making the flycutter was quite a painful one; the Sherline mill vibrated like no tomorrow and it was really loud!|
|The top was drilled and tapped for 2BA setscrew, right to the 5/16" thread hole.|
|The setscrew installed. You can see that it is not exactly at the centre of the 5/16" thread hole. Don't think this will cause problem.|
|The Slide is now completed. I may not want to mill the radius at the 2 ends of both the Slide and Base to simplify the build. Maye I should, to learn how this should be done.|
I'll work on the Base in my next session in the shop. One question which I would like to ask. The 2MT arbor needs to be machined and thread 5/16" BSF. I'm scratching my head thinking through how I should be holding the arbor. The Proxxon lathe has a 3MT in the spindle. My Sherline lathe has 1MT. Do I hold it between centre?