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Author Topic: Trouble drawing vectors, moving home point?
jonpeterse-
n
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Posts: 4
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Post Trouble drawing vectors, moving home point?
on: December 27, 2012, 04:14
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I am having trouble drawing vector graphics. It seems that when I send the commands to draw, the homepoint gets moved down the page and to the left. So the machine does one big move approximately straight down the page, and thinks it is at the upper left hand corner. After that first move all subsequent moves appear to be correct, although I haven't let it draw to check. I haven't had trouble drawing other pictures. My motors have 200 steps, I tried setting motor steps to 200 and 400, but get the same results. Any ideas on what I am doing wrong? Thanks

sandy
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sandy
Post Re: Trouble drawing vectors, moving home point?
on: December 27, 2012, 22:53
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Hey Jon, lets see. So you're doing a "set home", and that works ok? (so after setting home, the pink spot on the polargraph controller screen corresponds with where you think the gondola really is?)

Sandy Noble

jonpeterse-
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Post Re: Trouble drawing vectors, moving home point?
on: December 29, 2012, 23:01
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Yep, I am doing a "set home" before drawing, and the pink point on the screen changes. I can also "move to point" to each corner correctly. Although when I click "draw vector" the first point the machine moves to is not top right corner as is indicated on screen.

sandy
Administrator
Posts: 1317
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sandy
Post Re: Trouble drawing vectors, moving home point?
on: December 30, 2012, 16:22
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Hi Jon, I'm not quite clear on what's going wrong - does it draw ok, but offset too far down the page? Or it just doesn't draw in the sequence you expect?

You say that move-to-point works ok, that's a good sign of proper homing/calibration. Can you try the same thing (moving to corners) using "move direct"? That uses the same function as the draw vectors does so if that works weirdly too then that give us some more information. A screengrab and a photo might help (email if you like).

sn

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