Weiler LZ 280 Umbau auf Kurzkegel DIN 55027 (Teil 3)

This is the third part of the video series about converting my Weiler LZ 280 lathe from a DIN 800 spindle head to a short taper spindle head according to DIN 55027. Here I complete the actual spindle head by drilling the holes and turning the short taper itself. This is the third part of the video series about converting my Weiler LZ 280 lathe from a DIN 800 spindle head to a DIN 55027 short taper spindle head. Here I finish the actual spindle head by drilling the holes and turning the short taper. Part 1:    • Weiler LZ 280 Umbau auf Kurzkegel DIN 5502...   Part 2:    • Weiler LZ 280 Umbau auf Kurzkegel DIN 5502...   Part 3:    • Weiler LZ 280 Umbau auf Kurzkegel DIN 5502...   Part 4:    • Weiler LZ 280 Umbau auf Kurzkegel DIN 5502...   English: Part 1:    • Weiler LZ280 short taper spindle nose conv...   Part 2:    • Weiler LZ280 short taper spindle nose conv...   Part 3:    • Weiler LZ280 short taper spindle nose conv...   Part 4:    • Weiler LZ280 short taper spindle nose conv...   00:00 Introduction and Summary 00:29 Drilling and Boring the Hole Pattern 12:41 Preparations for Assembly (Spindle removal and repair) 12:55 Mounting the spindle head onto the spindle 12:52 Pre-turning the short taper 18:58 Internal turning Turning the taper 23:06 Manufacturing a test taper 24:10 Adjusting the top slide using a mandrel 26:30 Turning and measuring the test taper 30:19 Test turning with a CBN tool 30:39 Taper turning 32:04 Measuring the taper diameter with measuring pins 35:43 Fine adjustment 35:58 Turning the undercut 36:20 Finished short taper spindle head Appendix 36:31 Derivation of the measuring method for determining the taper diameter 40:38 Summary and outlook 40:51 Bloopers