Helical Sweep for rifling

[bmt9554]

I am doing a project for school, and I've decided to do my rifle. I have tried to do the rifling with Helical Sweep: cut, but it does not remove any depth. Just a line. I,ve also tried thin cut, and I get an error "Feature aborted: cannot create thin geometry." I think I'm doing everything right, It is either the section, or the thickness, but trial and error is not working.

Any help would be greatly appreciated.

 

[puppet]

could you explain in more detail what your trying to do?

possible have a sketch ?

 

[especial]

Sound like you are doing everything the right way. How many cut grooves did you create for the rifling? Since the cuts are so so small zoom-up real close. It's my believe that you have at least six rifling grooves, so make sure all your line are connected (in sketcher). Hope this helps.


AS

 

[airion]

When you first start the helical cut feature, under attributes Select "Norm to Traj" instead of the default Thru Axis. I tried this and it gave me much better results for the large pitch vs diameter that you're after.

 

[bmt9554]

Sorry it took so long to reply, I did get ti to work finally. I was doing too things wrong. First pitch in Pro/E is in inches per revolution, not revolutions per inch, which I though it was. Second, the sketch of the cut was too small, and had to make it longer so it would remove the material.

Now I have another problem. The cut has a glitch in it, when it made the cut, it left material out side past the barrel.
View attachment 505

View attachment 506

I try to make an extrusion to remove it, but it will not work. I don't know what to do.

 

[s_praboo]

hi


sorry i cannot give any solution to ur problem as such


but thin being i happened 2 have a doubt seeing ur discussion


how to check whether the pitch value what we give is in inches/revolution or revolutions /inch also is it possible to change it.

 

[jaecr]

I think that what you needis at following annex.


2004-11-06_230839_cano_raiado.prt.zip


Best regards.

 

[bmt9554]

Thanks jacer, I didn't even think of using a datum curve and a variable section sweep. My Proffessor keept pushing helical sweeps not section sweeps. Worked like a charm.