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Member postings for Alan Jackson

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

Thread: MEW 180
10/08/2011 22:22:19
Figure 9 on page 40 of MEW180 shows a right angled slit into the bore to clamp the shaft.
This is a good example of computer design which is untested. How would you propose a potential builder would cut this slit? If we all can do proposed designs in virtual reality using virtual materials which are strong, hard, straight and cost free it will save a lot of trouble doing things the old fashioned way. If this had happened a few years earlier I think Myfords would have closed down much sooner than they did. Also just think of the electricity saved by going virtual, the new green model engineering.
Thread: Parting off on Myford lathes
19/01/2011 17:42:04
I generally agree with TerryG' s summation that a rear parting tool post works best. I have spent many hours being petrified at parting off on lightly constructed lathes with average head bearings etc. Now the rear toolpost on my chipmaster works easily without fear. I have also experimented with front and rear cutting tools and reverse rotation upside down mounted tools and believe that rear inverted cutting position works best on light lathes because the cutting tool does not seem to get to the dig in position so easily, it becomes less resonant. The cutting forces seem to reach a more stable situation and this shows up in a better finish.

Edited By Alan Jackson on 19/01/2011 17:44:19

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