Math Question:
If I look at the ever popular:
[attachment 25019 buildarea.png]
1) The point that the largest circle hits the build envelope appears to be half way between the two drive shafts.
2) That's where the arm from the third drive shaft is horizontal.
3) The distance from the shaft to the hot end should be arm + hub offset + shoulder offset (unless I have those terms wrong)
4) That's 200 + 50 + 37.5 = 287.5 from the Python code
5) By calculation (in another message) the shaft is 173.2 from the center of the build area.
6) The hot end should be 287.5 - 173.2 past the center of the build area. That's 114.3 mm
7) The circle diameter should be 228.6 mm not what's shown (or ... much more likely .... I'm mixed up .... again ....)
I'm trying to check a spread sheet that I'm using for fiddling the various offsets. Either there is a number missing in the spread sheet or I can't add ....
If I look at the ever popular:
[attachment 25019 buildarea.png]
1) The point that the largest circle hits the build envelope appears to be half way between the two drive shafts.
2) That's where the arm from the third drive shaft is horizontal.
3) The distance from the shaft to the hot end should be arm + hub offset + shoulder offset (unless I have those terms wrong)
4) That's 200 + 50 + 37.5 = 287.5 from the Python code
5) By calculation (in another message) the shaft is 173.2 from the center of the build area.
6) The hot end should be 287.5 - 173.2 past the center of the build area. That's 114.3 mm
7) The circle diameter should be 228.6 mm not what's shown (or ... much more likely .... I'm mixed up .... again ....)
I'm trying to check a spread sheet that I'm using for fiddling the various offsets. Either there is a number missing in the spread sheet or I can't add ....