Homemade Tool Post Grinder - part 2 (completing clamp)

The next natural project for me is to make a tool post grinder to use in my Colchester Student lathe. I also have the need for a cutter grinder and so the thought occurred that, perhaps, I could design a tool post spindle and drive which could also be included in a cutter grinder. If I had sufficient space in my workshop I probable would have looked for a Clarkson Cutter Grinder to refurbish and focussed instead on making just the tool post grinder. Taking all things into account designing my own combination machine seemed to be a reasonable proposition. In part 2, I start I continue to make the clamp which holds the spindle. Since I don't have a DRO on my mill I use gauge blocks and a DTI to accurately centre drill the bolt holes before mounting on a faceplate for final boring to size. The 'yoke' which holds the clamp in the lathe's four-way tool post is welded up from 30x15mm steel. Since I am a novice welder and my welder is on the small side I first made a trial joint. Based on the moderate success of this I increase the size of the fillets and weld up the real item. The upper and lower surface are skimmed to final size in the mill. 00:00 Introduction 00:40 Using gauge blocks and a DTI to drill accurate pilot holes 04:52 Mounting the clamp on the faceplate 07:00 Setting up the clamp to run true 09:10 Boring the clamp to final size 10:19 Boring the undercut 12:29 Looking at the test weld of the 30x15mm steel 14:57 Finalising dimensions of yoke with test fit in tool post 16:09 Taking a look at the prepared sections prepped for welding 17:38 Tack welding the joints 18:01 Checking for squareness 18:23 Gassless MIG welding the joints 18:47 Taking a look and the welded yoke after cleaning up & the drawing 20:45 Showing how the clamp mounts in the lathe 21:17 Next video See also: Part 1 - Making the body of the clamp: https://youtu.be/TnpYK0d54uo For input on the flux core wire I used in this video I recommend the channel TimWelds and this video: https://youtu.be/1Mwi4mugSyE?si=t8xILDU6c7zDZ4aR Music from the You Tube library: 'Lace Tablecloths' by The Mini Vandals