Y-tower wants to drop to the bottom leaving the rest of the towers at the top

[megalithic]

When installing the latest .091 repetier/rostockmax firmware onto a V1 Rostock Max, and home all from mattercontrol OR from repetier-host (both for mac), the Y tower will literally drop all the way down to the bottom of the tower, and the only way to stop it and prevent damage is to shut the printer off.

Of note, I went back to an .091 revision in github from 2/12/2014 (75f0ea5 is the SHA), and the towers worked/acted correctly. I haven't done a git-bisect yet to find the difference. Just wanted to note this as an issue.

[seemecnc]

Seth,

When installing the current version of firmware, I do believe you need to
invert the direction of one or more of the motors in the firmware for the
V1 Rostock Max.

The image below depicts this section of code in the firmware (this is for
the V2)

[image: Inline image 1]

JJ
SeeMeCNC

On Thu, Jul 31, 2014 at 4:55 PM, Seth Messer [email protected]
wrote:

When installing the latest .091 repetier/rostockmax firmware onto a V1
Rostock Max, and home all from mattercontrol OR from repetier-host (both
for mac), the Y tower will literally drop all the way down to the bottom of
the tower, and the only way to stop it and prevent damage is to shut the
printer off.

Of note, I went back to an .091 revision in github from 2/12/2014 (75f0ea5
75f0ea5
is the SHA), and the towers worked/acted correctly. I haven't done a
git-bisect yet to find the difference. Just wanted to note this as an issue.

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