Draw two lines with given angle and distance between endpoints.

[MauiWarrior]

Hi All,

In Draft workbench I would like to draw two lines with matching left points forming 60 degree angle and the other two points 3 mm apart. I did it in attached document, but I had to compute everything manually (using tan) and simply entered dimension.
Is there way to do it simpler (without manual computations)?



OS: Windows 10 Version 1809
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.24276 (Git)
Build type: Release
Branch: releases/FreeCAD-0-19
Hash: a88db11e0a908f6e38f92bfc5187b13ebe470438
Python version: 3.8.6+
Qt version: 5.15.1
Coin version: 4.0.1
OCC version: 7.5.0
Locale: English/United States (en_US)

[drmacro]

And this is why folks don't use draft.

This is a trivial exercise in Sketcher. Twelve mouse clicks and 30 seconds:

Snip macro screenshot-c12cc2.png (50.14 KiB) Viewed 863 times

Two more mouse clicks and it makes a Draft Wire if desired.

[MauiWarrior]

Thank you!
(you slightly changed my sketch, two points coincide and the other two are 3 mm apart)

Sketcher does not have either linear pattern or array. How would I go about repeating this this pattern?

[Bance]

Sketcher does have array.

And if you make cols =1 it's linear.

But I told before that ain't the best way to do it!

[MauiWarrior]

Awesome, that is what I was looking for. Thank you!

[Bance]

If you ask good questions you get good answers.

[heda]

sketcher is the way to go for these things.
to the literate question if it is possible in draft,
sure it is, just make some "construction" lines used to trim things,
they are just normal lines which I changed color on.

the angled lines are made with the length/angle option
construction lines are made in zero, and then moved
then it is just to trim the angled lines to the construction lines

draftlines.png (12.65 KiB) Viewed 823 times

or use the power of placement.
- make one horizontal line, say 10 mm
- duplicate so that you have 4 in total
- take the first one and change placement angle to 30 degrees, and the second one to -30
- move one line up 1.5 mm and one down 1.5 mm with placement
- make the trims...

using placement is probably about the same speed as sketcher if one is used to it.

[MauiWarrior]

@heda, thank you! I need to learn how to use construction lines.

[mario52]

Hi

here little macro Macro_Line_Length (with Draft)

paste the complete macro in FreeCAD console python and type

ex:

Code: Select all

line_length(x1 = 0, y1 = 0, z1 = 0, length = 10, angle = 45)

mario

[MauiWarrior]

@mario52 thank you! It will be my first experience with Python and FreeCAD