Sketch question

[strelniece]

Hi, might just be me, but I'm trying to make identical curves in sketch and not that easy. I duplicated the line to use as a tempate, but can't rotate it, do I understand you can't rotate a singel line?

thanx

[henmedia]

@strelniece You understood it right: in the sketch a single line or curve cannot be turned. What the sketch can do with a selection is copy, duplicate (Ctrl+D) and move it. The angle of a line you change by dragging its end point, or, at a corner where two lines meet, by typing the angle. Turning with R works only for a closed outline, in 45° steps.

What do you want to draw in the end? For example two curves that mirror each other, or the same curve several times at different angles? If you tell me, I can say whether there is a shorter way, and a screenshot of what you have so far would help.

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[strelniece]

If you look at the screenshot, what I would like to achieve is that the cuves are identical. Right now I have solved it by doing one side and duplicate it, and that can of course work, but if it was possible to do it right away it would be even better. As you see in the image, there is nowhere to type in the angle, it seems to only be possible whith strait lines and not curves.

I must say I doscovered it just hours before my question. Thought trying my latest tinkercad project would be a good try and must say I'm impressed and definitly worth a donation!

thanks

[henmedia]

@strelniece, thank you, and good to hear a Tinkercad project works out here. You read it right: the handles of a curve can only be dragged, there is no field for them, and a typed angle exists only at a corner where two straight lines meet. The sketch also cannot turn or mirror a single curve.

For two curves that must be exactly the same there is a way around it: leave the rectangle as a plain body and cut the notches with a cylinder set to Hole. Make the cylinder taller than the body, type its size and position as numbers, and put its centre above the edge; then only a shallow arc of it cuts into the rectangle, like in your picture. Duplicate it with Ctrl+D, type the position of the copy on the other side, select the rectangle and both cylinders and click Group. Both notches are then identical, because they are the same cylinder, and you can change them together by changing the numbers.

[strelniece]

Ah, smart! will it also make it less complicated? The image above is not my project, it's slightly more complex and when I wanted to do some chamfers it was to many triangles and reducing it didn't help. But will try to redo it not using sketch and se if it works better, in thinkercad it drove me crazy and HL ModTechs video turned up just in time...