Ok, didnt know that. I would have treated them as graphs to find out isolated parts and then solved multiple smaller equations instead of one big. Or was this incorrect use of sketches? Correct would have been new sketch for each shape or what would be the good use? Does anything happen if they dont...

Ok, did not expect that. Why doesnt FC mark shape that is already fixed green and leave other one white? Otherwise it leaves up to users to find out what is free and what is not specially of sketch is more complex than 50 lines.

well, if it is not green something is missing. try "validate sketch" (read on wiki) and see if that gives something to fix Nothing. Tolerance 0.0001 Ignore construction geometry=false No missing coincidences found No invalid constraints found No degenerated geometry found No reversed exte...

Thanks for giving me hints. Btw is there way to see all the constraints that are related to line or point? Sometimes with some constraints it is hard to tell visually what it is constraining. Is there way to tell FC to highlight all lines/points that currently selected constraint is constraining? Or...

Can you select the points first and then apply the constraint? The answer is really simple, read what you wrote and compare it to the text you quoted...note you said "arc", you were told "arc ends". If you select tool first then geometry of course it will not work unless that ge...

from the wiki I have read these and even looked into https://wiki.freecadweb.org/Sketcher_ConstrainHorizontal for more info but that doent help me to proceed in this case. When I try to follow step b: arc centers horizontal with arc ends I know what is horizontal constraint button. But when I try t...

Have you watched this video by Joko engineering? FreeCAD Sketcher For Beginners |JOKO ENGINEERING| watched it now. point on object for (I) vertical mid line to top arc center (II) horizontal mid line to side line / vertical mid line Could you explain that in more detail? I dont get it. Btw can anyo...

@heda could you update your Sat Nov 28, 2020 10:12 post to include what constraints were added? I tried to follow this. At the moment I am stuck with arcs. If I create arc at first can I change it's angle later? I mean I can add angle constraint later but is it the correct way? I mean If I originall...

That is really obvious since the text is blue not red like the rest and not orange (which is the colour when you have use an Expression rather than a value). What is obvious for someone with years of experience may not be obvious to someone who is new. I think I may have accidentally clicked it whe...

From wiki I learned how to use width and height constraints. But it happened that when I wanted to change length value I was able to do that for every constraint except for one. Why is that length grayed out? Here is screenshot of it. constraint2.PNG I have also question on how do I constraint the s...