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wongster:
Hi Andy,
You're right. I may do just that.
One question which I need your input. I'm re-reading the part on screw cutting the 5/16" BSF to provide a tighter fit. Does screw cutting means using the lathe to cut the thread using a single point tool? I'm not sure if I can do that with my proxxon. This is my first encounter with BSF.
Regards,
Wong
DaveH:
Wong,
Nicely done :thumbup: :clap: good use of the tool makers clamps.
The 5/16" BSF can always be changed to a 'near' metric one.
If one uses a split die it can be allowed to cut on the high side, adjusted until you are happy with the fit. Also if the threaded part is long, then at least a partial cutting on the lathe keeps it on the straight and narrow. The final 50% of the thread is completed with the die.
:beer:
DaveH
wongster:
Hello DaveH,
I've the split die :D I'll give that a shot. The female tap hole has already been done, there goes my chance to change to a near metric one. My experience so far on using a die to cut threads have not been at all pleasant, even with a chamfer at the end of the workpiece. Let's hope I'm able to get it on this time and change the experience.
Regards,
Wong
MadNick:
Glad to see you are getting stuck in!
BTW I found the same problem with cap bolts, the diameter of the head can vary. The time I didnt check this I had to take a few thou off as has been recommended - I made and used a mandrel to do this.
Nick
wongster:
Hi Nick,
Do you have a pic of your mandrel?
Regards,
Wong
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