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Member postings for steve kendall 1

Here is a list of all the postings steve kendall 1 has made in our forums. Click on a thread name to jump to the thread.

Thread: Electronics in retro fit of CNC control on X3 Mill
26/10/2010 17:23:46
I have been reading the excellent article written by Dick Stephen in Dec 2004 to March 2005 MEW about retro fitting CNC control to the X3 mill.  As I am far more comfortable with the mechanical side of the project, I intend to build the electonics side of the project first .  I am looking at the manual control box at the moment, the diagram fig. 9 on page 33 of Feb/Mar issue shows one 7490 IC, but the parts list and photo 25 shows two of them.  I assume that due to my lack of expertise in electronics I am missing something obvious.  Can anyone help?
 
Steve
Thread: 2 start thread on fountain pen
15/09/2010 22:37:31
Hi Neil
 
That's a good idea, it will solve my problem and I can start using my pen again!
 
Thanks
Steve
15/09/2010 09:49:56
Hi
 
I have lost the cap for my stainless steel fountain pen and I am trying to make a replacement.  As near as I can measure the thread seems to be square form, major diameter 12.7 mm, minor diameter 12.1 mm, pitch 1.6 mm per rev. number of starts 2.
 
I have read Screw cutting in the lathe, and found it nery helpful.
 
I have ground a HSS tool 0.4 mm wide, and cut an internal thread on a piece of scrap brass.  This almost fits, but does not run freely.  Does anyone have any advice, particularly on measuring and identifying the thread form?
 
I am using a SEIG C4 lathe using 16 TPI screw cutting feed, and I move the compound slide 0.8 mm to make the second start.  I have made a tap from silver steel and hardened it but I am having difficulty using it to cut a thread, I think because it is square form.
 
Can anyone help?
Will anyone with cutting threads be at the Myford open days so I could show you my problem and efforts so far?
Regards
Steve
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