Attach your *.dwg file here.
I do not see any dwg attachments in this thread.
Do you?
Try with a different browser.
If it still doesn't work then right click on the file name and select Send to Compressed (zipped) Folder and then attach the resulting *.zip file of the dwg file.
What problem are you having placing the Chamfer?
I type Chamfer and hit Enter. (Distance already indicates 1x1.)
Click the two lines.
(is your 28.5 correct?)
Apologies, it appears that the measurements were not originally set to 1x1. My mistake.
Here is something I am really struggling with-
I have to draw this screw:
And, unfortunately, this is what I am getting:
Neither of the cut off points (I have put in red) fit exactly as per the drawing exercise and I can't see where I am going wrong?