How to draw without snapping to edges or draw cline on edge?

amix

I have created quite a few models. That was with v6 and, possibly, earlier. Now I use v8 (v7 does the same in this regard). I do not find myself at home in the application anymore. Did the process of simple drawing change? I don't seem to be able to draw a circle from a point on the surface (created with the cline tool) to short before the edge of the rectangle . The construction point is 3mm from both rectangle edges at the corner and I want to draw the circle with a radius of 2.8mm. It either snaps to the edge or nothing happens.

Same for the cline tool (a well known plugin). Once I was able to freely place the points on the surface of the rectangle. Now I am not anymore. You need this, when you want to define a point on the surface as the center of a circle, or so. You construct a point per line of the cornering edges and from there you go to the surface then, using straight lines.
Starting with (simple


+----------+
|          |
|          |
|          |
|          |
+----------+

I then want to place some construction points (using CLineTool by Jim Foltz). First I create the + points, from there I can define the * point, which will become the center of a circle, representing a drill hole.


+-+------+-+
+ *      * +
|          |
|          |
+ *      * +
+-+------+-+

Not possible! I can't get to *.

Please help. Thanks a lot!

Box

You are working with very small dimensions so snapping will be less controllable.

It sounds like you need to adjust the "precision" and "snapping" in Model Info/Units

If that isn't enough, scale up your drawing and back down again when complete.

mac1

Just gave you issue a quick go. A little different approach. Made a 24"x24" rec, used tape toll to offset guide lines 3mm from each edge and then drew your 2.8mm circle OK. No snap problem. The only thing I did possibly different when drawing circle was I set radius towards the rec center and not toward edge. If you want vertex at specific point I think you can still do that with the guide lines or you could make some special one for a specific point. If you over shoot the circle you may encounter a issue with self intersection that was new Su7 and up. Make circle small and enter correct value in the VCB or make the rec a group / component first
Just a thought

Jean Lemire

Hi Amix, hi folks.

If you have not done it yet, disable Enable length snapping in Windows --> Model info --> Units.

Maybe you can also use larger units to avoid the problem that SU has with very small objects.

Use meters while pretending thay are millimeters. When done, scale down by 1000. Notice that SU will not accept 0.001 as a scale factor. It will however accept 0.01 and then 0.1 or the reverse. You can also use the pae measure tool to rescale the whole model or only a group or only a component.

Just ideas.