Hi
I may be missing something here, s any help would be appreciated.
When using the Tape Measure I can create a Guide Point from any existing ‘corner’ point of my geometry.
However, if I try to create a Guidepoint from the Midpoint of an edge, even though I press Control to change to Guidepoint, it will not create a Guidepoint.
I lock the axes by pressing the arrow key, then type in the required distance, but no Guidepoint is created.
Mike
Clicking with the Tape Measure tool anywhere along the edge, including the midpoint results in a parallel guideline instead of a guidepoint. If you put a temporary guideline through the midpoint or draw in an intersecting edge you’ll have an intersection to start from and a guidepoint can be created. Works for anywhere else along the edge, too.
Maybe a feature request, though? Alt as a modifier to place a guidepoint from an inference point?
Hi @DaveR
Hope you are well.
Thank you for the reply. Yes, that’s what I ended up doing after some trial and error.
Yes, it would be good to be able to create Guidelines from inference points, such as Midpoints.
Mike
Thank you Mike. Doing pretty well in the middle of moving house. And I hope you are also well.
I guess there are some alternatives until such a feature might be added.
Another alternative which I think you’d find @TheOnlyAaron using is to draw an edge from the midpoint to the desired distance and then using the endpoint as the reference instead of a guidepoint.
Sounds like fun… moving house right on the top of Christmas 
Hope it goes well.
Can not believe I did not think of just using an edge. Oh well, it’s Sunday and I have not put my brain in yet. That’s my excuse
Mike
Fun… Yeah… At least it hasn’t started to snow yet.
It’s good to have an excuse. 
TTFN
d
Another alternative which I think you’d find @TheOnlyAaron using is to draw an edge from the midpoint to the desired distance and then using the endpoint as the reference instead of a guidepoint
Holdover from cad i guess and construction lines etc but I find myself doing this sometimes… not using guidelines but just moving/ offsetting edges etc.
Any reason not to do this? One I can come up with is that it potentially breaks the edge that you are referencing.
And… hopefully not appearing to hijack but not really understanding the reason for guidepoints vs guidelines. I mean can’t you just create intersecting guidelines to create a point? For me seems like everytime I create a guidepoint it’s almost by accident (when trying to create a guideline) but regardless whenever I create one I can’t seem to do anything with it. If I’m remembering snapping to them (either guidelines or edges (possibly) doesn’t work. Just would like a quick explanation as to what the purpose of guidepoints vs guidelines is…
Yeah, I had trouble like that in my early days using SketchUp. Since then I have gotten used to its antics.
You probably need more and many guidelines tend to get messy. GuidePoints have their tales to let you know where they came from:
lines:
Perfect! Thanks! Now I understand.
It took me a while to figure this out.
To get a guidepoint do not make the 2nd click where you want the guidepoint. Lock your axis and click on some inference (an intersection or different guidepoint) that takes the tip of the arrow to where you want the guidepoint, and then click on that inference.