Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: dfurlano on June 03, 2007, 02:14:58 PM
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Want to do some thread milling with a single tooth cutter. When I use the wizard on field is Major/Minor and I am not sure what to put into this as a value the major or minor dimension?
Dan
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I have not used it or even looked at it but could it not be meaning if you are doing an external thread you will put in the major and if doing an internal the minor?
Hood
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Major and minor dia of the thread here is a link for example.
Just find out the specs for that thread.
Wes
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http://www.newmantools.com/tech/threadmf.htm
sorry forgot to put it the link
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Guys,
Thanks for your input... I'll give it a try and see how it goes.
Thanks again.
Dan
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It might be me but that website description makes very little sense to me. Just look at the relationship between H1 and h3.
I also tried to calculate to the outer point (above D) and that made no sense either.
If you use a thread pitch of .75mm then the long side of the 30 degree triangle is .65024 mm again that does not correlate with H1 or h3 or even (D-d3)/2 which should be very close.
I am not sure this diagram is correct at all.
Dan
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thought you were just trying to figure out max and min meant here is a link so you can get excat numbers
http://www.colinusher.info/Livesteam/mewdata.html
do a search for Thread Data and it will give you several links
Wes
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Well I got it to work with some help from Brian :). I wanted to match some existing parts that I had. They are 10 x .75 mm threads.
I used this cutter on the mill.
Thread Cutter (http://www.harveytool.com/products/product_detail.php?product_id=71000-C3&category_id=1&product_family=Thread+Milling+Cutters)
Here are the test parts made from wood.
(http://www.dfurlano.com/clip/thread1.jpg)
(http://www.dfurlano.com/clip/thread2.jpg)
(http://www.dfurlano.com/clip/thread3.jpg)
Now to try some real pieces.
Thanks for all the help! ;D ;D
Dan
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Nice! You are going to have threads on every part in the shop now ;)
Looking good!
Brian
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Hi Dan
Can you post the real pieces aswell ?
Very curious.
Greetings:
Willem
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Pics are ebonite with an aluminum insert. The pen tip (nib) and chrome sleeve were purchased parts.
(http://www.dfurlano.com/nib/nib1.jpg)
(http://www.dfurlano.com/nib/nib2.jpg)
(http://www.dfurlano.com/nib/nib3.jpg)
(http://www.dfurlano.com/nib/nib4.jpg)
Dan
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Wow, not bad at all.
In and outside threads made in one tighten ????
Is this pen on real size?
Nice job man.
Greetings:
Willem
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Nice work! That makes the time in the code worth all the hours..
Thanks and keep up the great work!
Brian
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Willem,
Not sure what you mean by "made in one tighten" I machined the insert first then glued it into the ebonite I then machined the threads on the ebonite. These pictures are bigger then 1:1 the threads on the ebonite are .5 inches, these are actual pen parts.
Dan
PS thanks Brian... your help is always appreciated.
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Hi Dan
My english is very bad so i cant find the exact words to expres what i mean but you say you machined the insert first , that anwers my question, you did made both threads separate.
Did you made the insert also on a mill or on a latche?
So you made the part on actual size.
Did you use the wizzard of Newflange solutions?
Greetings:
Willem
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Willem,
I machined everything on my mill. I used a single tooth cutter and the free threading wizard that comes with Mach3. Brian did a great job on the wizard and it works great. It took me a little while to figure out the correct thread size to match the parts that I bought since they were not really standard but I got it sized the threads work very smooth.
Dan
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So you see , work can be fun.
Greetings:
Willem
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Well I don't know if i would go that far!
Dan