In this video I continue to make the missing components for my horizontal milling by completing the support bar. In the last video the bar was parted to 27in long and the ends prepared to receive caps which will be held in the four-jaw chuck.
In this video work starts with making a plug gauge to determine the precise diameter the bar needs to be turned to. Once the size is determined the bar is machined in two stages exchanging end for end. This means that the 27in length is machined in three sections. This required careful setting up to ensure that the bar will be straight enough to fit through the holes in the head of the mill without excessive play.
After many hour of machining the result was acceptable. The homemade large fixed steady came into its own. This has proved to be a very useful accessory for the Myford lathe.
00:00 Introduction
00:53 Levelling the lathe as preparation for turning
02:11 Preliminary measurement of bore in milling machine head
02:45 Making crude bore gauge
08:33 Setting up fine feed on lathe
09:18 Setting up bar in lathe
12:26 Starting to turn the bar
13:50 Checking for parallelism of work
14:39 Making adjustments with the fixed steady
18:11 Checking diameter for final cut on first section
20:25 Honing high speed steel tool for finishing cut
20:44 Finishing cut
21:42 Chamfering end
23:09 First fitting of bar in milling machine head
24:12 Preparation for machining other end of bar
24:53 Machining other end of bar
25:19 Measurements to ensure two cuts align
26:19 Finishing cut
28:01 Testing finished bar for accuracy of location in mill head
Making the large fixed steady for a Myford lathe:
Producing the castings: [ Ссылка ]
Part 1 machining: [ Ссылка ]
Part 2 machining: [ Ссылка ]
Part 3 machining: [ Ссылка ]
Part 4 machining: [ Ссылка ]
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