help with a thread
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Aha I got you mixed up, that was the one I watched
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I’m the problem, ha ha
I need a back to basics tutorial, I always seem to miss a certain point and nothing happens . I can see the way both of you do the threads but I’m missing something -
Ok I’ve managed a male and female thread on a 150mm diameter, with a 0.3 offset, . It’s very tight can wind it on for 2 threads , and that’s it. Tomorrow doing another female with an extra 0.3 clearance on all faces, so see how that goes. I think it’s the shrinkage on the printer that’s causing the problem
Thanks Guys for all your help -
@Leggy said in help with a thread:
I think it’s the shrinkage on the printer that’s causing the problem
That's probably it. You'll have to work that out based on the material.
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I finally got it to work , pictures to follow , thanks Guys
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Well done @Leggy
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Hi guys
Again thanks for all your help
Is there a chart you use to look up thread dimensions, pitch, tpi , crest etc
I was trying a m22 x 2.5 and got a bit confused on the chart I was following, so I asked ChatGPT
After 4 hours of me telling it, it was wrong, it finally agreed
I was drawing it in SU then asking it questions on the iPad
When I get home I’ll upload my figures and see what you think, the thread looks good on the screen, but that doesn’t mean it will fit
Thanks Dean -
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These are what chat told me
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@Leggy said in help with a thread:
Is there a chart you use to look up thread dimensions, pitch, tpi , crest etc
I would use the following site:
External Metric ISO Thread Table Chart Sizes M20 - M55
Metric external thread size table chart for sizes M20 to M55 Bolts and screws per. ANSI/ASME B1.13M-1995.
(www.engineersedge.com)
I wouldn't bother with the radiused corners because they'd be too small.
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