I have several bad experiences parting off in my Colchester Student lathe. Having found an inverted rear mounted parting tool to be successful on my smaller Myford lathe I decided to make a similar tool post for the Colchester. This video focusses on making the base plate and involves the shaper, lathe and pillar drill as well as hand scraping.
00:00 Introduction
00:18 Milling column using face mill
02:26 Milling 45 degree surface
03:08 Marking out slot
03:40 Milling slot with end mill
05:42 Marking out for tapped bolt holes
08:49 Modification to chamfer size to suit DTI mounting
10:03 Chamfering body in mill
10:18 Turning and threading bolts in silver steel (drill rod)
12:48 Milling bolt head using dividing head in mill
14:18 Facing & chamfering bolt heads
14:44 Hardening & tempering bolts
15:48 Chamfering base on shaper
17:44 Final assembly
18:55 Mounting on lathe cross slide
19:14 Setting tool height
20:09 Two successful parting off operations
21:11 Parting off demonstration
22:44 Verdict - not satisfactory!
23:12 To be continued...issue will be resolved in final video