I am trying to cut a helix around a cylinder. I am very unsuccessful in my attempts as I have never tried this before.
I have attached the part in question. The slot needs to be .125" wide and .080" deep. at a pitch of .42", and have 6 of these around the cylinder evenly spaced. When I try to achieve this, I fail. Badly...
Maybe the true pros here can help me out?
The first one is no problem. The issue lies in your needing 6 of them spaced evenly.
The arc length of just 1 of intersection cuts is just over 1"
Your cylinder is 1.25" in diameter. This means that it has a perimeter of approx. 3.92"
This means that you can do 3 at most. After that, they start intersecting with each other.
If you increased the pitch, or decreased your slot width (or both) you should be able to get more.
In the example below, I increased the pitch to 1" and decreased the slot width to .080" and I can get 6 there.....
Edit: However, if you try to only increase the diameter of the cylinder, this won't work. This is because the arc length of the intersection cut scales with the diameter of the cylinder. Mainly because your angle in intersection gets smaller and smaller as you increase the diameter, which increases the intersection cut arc length.
Typo...
pitch is 4.2", not .42", My mistake.
If you don't mind. Could you attach your model so i can see the steps you took on the tree to learn from?
No problem.
And now with the corrected pitch, it works great.
Here is another version:
The difference between them is that the sweep profile on this one is now perpendicular to the path, rather than parallel to the bottom plane of the cylinder.
Makes a better cut path.
Thanks! i understand the process now. That's another for the tool box!
Here is another version:
The difference between them is that the sweep profile on this one is now perpendicular to the path, rather than parallel to the bottom plane of the cylinder.
Makes a better cut path.