Modeling Machine Screws

Your Cliffused.

HTH,
Tom

 

Cliff,

You said I was wrong and I wasn't. If you have a gripe take it to the
machine tool manufacturer and maybe keep it in the original group
(alt.machines.cnc) thread.

Here you can buy 5 axes;


http://www.turtle.com/turtle_tools/category.php?sub_cat=2009&gclid=CMP39bS51IsCFRKzhgodMxixVA

Or you can buy the OP machine, Flow's 5-Axis Machine;

http://www.flowcorp.com/about-flow.cfm?id=585

Or Bridgeport's 5-Axis VMC;

http://www.hardingeus.com/index.asp?pageID=64&cID=18

Not my fault that the industry terminology has evolved since your
retirement and you haven't kept up.

Tom

 

Drawings sure are.

ROFLMAO......your still Clueless I see......LOL.....LOL......LOL...

So you couldn't answer this one correctly either I see.

Your confusion is of no help, as usual.

Tom

 

It's a 3D tooling problem , probably not for 2D lathe guys <G>.
Nor would one size fit all.

 

Cliff,

Have you ever drawn anything in SolidWorks?

Tom

 

Tom,
Have you ever considered 3D?

 

Cliff,

I take your non-answer as a no. Just as I thought, you have never
programmed anything in SolidWorks.

Tom

 

Consider a nut that perfectly fits the desired thread form.
(Subtract thread from block.)
Let's do a simple example: zero rake tool.
Assume the tool-to-be is on "your" side of the part.
Cut the "nut" once with a plane thru the centerline (X axis)
going "down" (you can add more angle towards you for more clearance).
Now sweep a cut with a line at right angles to the centerline but intersecting
the centerline thru the "nut" along some path (your choice) from the
horizontal to the vertical (limits of angle of the swept line).

You have now cut out a bit of the "nut" to form the start of a tool.
Now sweep another line along the intersection at the thread to form
a relief. And perhaps others for side relief here & there, if needed,
leaving the "top" surface alone.

You now have a 3D tool design that will cut the thread .... and how
"swoopy" the "top" surface is is up to you.

Current sintering practices can probably produce such within
close tolerances as well.

Think 3D.

 

LOL,
Tom