Solids modelling a helix

[hansdeberlin]

Gentlemen!

I was searching but could not find an answer

I have uploaded to the FTP site under the solids folder Helix_solids.mcx and Helix_solids.jpeg files. Can you Please, give me a detailed instruction how to generate the spiral. Please first look at the helix_solids.jpeg file for info on spiral details.

Thanks for any input!

[Dan@home]

1)Create Arc (circle) and Extrude solid, major dia like your screw thrd. (solid cylinder).

 

2)Create Helix, minor radius, pitch, ext. (as per your drawing)

 

3)Create rectangle pattern you want to cut and attach it to the end of your Helix.

 

4)Solid sweep, Select your rectangle to sweep or cut, OK, then select sweep path (your Helix), OK. Make sure (cut body) button is selected. Or you can sweep boss.

 

Not to detailed, hope it helps...

Dan.

[John Summers]

Solids modeling won't help much to machine the slot. My preference would be to unroll the slot and use ROLLDIE. If the slot is going to have a follower, it would probably be more accurate to work from the centerline and use the SLOT option in ROLLDIE. That option offsets from the centerline both ways without rotation at each point, so the sides of the slot look parallel to the follower.

[ocho]

Create your helex (left view)

Create your slot side profile (front view)

solid sweep

solid remove

the file i have uploaded here is not 100% perfect but for a 5min try it will give you the general idea

 

Sorry for the white border

[hansdeberlin]

Thanks. Ocho could you please convert this file to an older version of mastercam X. I can not open it. It tells me to convert in the newer version in order to open it in this version.

[Hardmill]

hansdeberlin I converted the file and emailed it to you

 

 

PEACE