Pitched roof drawing

Hi there,
I am drawing some small houses to cut out from plywood. I’m stuck with the pithced roofs. I drew the roof parts, but now I’m not sure how to easy create the joins for the roof parts to join them onto the walls of the houses. I don’t know how to find the right angle to place the tabs on top of the walls part - except trial and error of course :slight_smile:

Below I have my drawing - the tabs on the roof parts are prepared, now how to get the right place for the tab on top of the pitched wall (marked with green).

Thank you for your hints and help.
BR, Dean

If you could post your LightBurn file we’ll take a look.

Ok, I assumed the screenshot would be enough. Here my lbrn file. Thank you in advance.

BR, Dean

roofs.lbrn2 (29.7 KB)

Ok, I found now that in the ruler tool there’s also an agle information. I figured out what the angle of the roof is (128,7) also rotated the two tabs the right way, but can’t find the center of the roof line, to get the tab perfectly positioned on the roof center.

I’d suggest taking the roof shape and rotating it to match the orientation of the roof on the house, then positioning it directly in place adjacent to each other. Then use that to directly align the location of the tab.

No, it’s easier to demonstrate using your actual file.

  1. Make a duplicate of your roof section

  2. Move and align duplicate as shown here (use the Two-Point Rotate/Scale tool):

  3. Convert the cutout to a path.

  4. Using the node edit tool break the rectangle at this corner then extend one side as shown

  5. Duplicate then move as shown:
    image

  6. Delete the duplicated roof section as you don’t need this any more.

  7. Trim the line you extended before.

  8. Close the path that represents the tab, ungroup your main profile then weld the tab to the main profile. (When I did this it wasn’t quite perfect).
    image

  9. In this case you can just delete the offending node to give this:

  10. Repeat for the others.

Someone might have a better way but that’s what I came up with. Hope it helps.

1 Like

Hm, ok. You got it in the opposite way I did it. But both ways are very complicated to get the result. Isn’t there any easier way to achieve this? Good that I have all the houses the same size and shape, so I have to do this just once. Can’t imagine I would have lot of different houses :smile:

Oh my god. Read your answer again and learned something new after 2 years of daily Lightburn usage - the two point scale and rotate. I didn’t even know that such a tool existed in LB. That’s the key to the solution anyhow :smile:
Thank you again!

BR, Dean

1 Like

Yes it is rather long-winded and I thought I might have got something the wrong way round but it was the principle I was trying to get across. Anyway, yes the 2-point align is the key but you still need to get it in the correct place, hence all the other jiggery-pokery.

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.