It would help if you posted the error messages. I don't think anybody can
guess what they would be without trying it themselves. y-motor-bracket.scad
is fairly simple, is that the only file you have problems with?

It used to be the case that Freecad could only do a subset of OpenSCAD,. I
think it couldn't do hull(), which is used extensively in Mendel90. Has
that changed?

On 1 April 2018 at 11:23, boelle bo.herrmannsen@gmail.com wrote:

there are several errors, does this list allows screenshots?

but other than the y motor bracket its also the y idler, both Y bar clamps,
Z bar clamp,

2018-04-01 17:34 GMT+02:00 nop head nop.head@gmail.com:

--
|||||
@(~Ô^Ô~)@
-------------oOo---U---oOo-------------
|                                    |
|  Bo Herrmannsen                    |
|                                    |
|                                    |
| "blessed are the "cracked",        |
|  for its they who let in the light" |
|                        Ooo        |
|_____ooO(  )|
(  )    ) /
\ (    (_/
_)

Yes you can post pictures provided they are not too big. It has a very
small file size limit for today's technology.

OctoPrint has recently moved to Discourse and two other projects I follow
use that. It is much better than mailing lists and other forums IMHO.

On 1 April 2018 at 16:44, Bo Herrmannsen bo.herrmannsen@gmail.com wrote:

Am 01.04.2018 um 17:44 schrieb Bo Herrmannsen:

the mailing list allows screen-shots and attachments, but usually, it is
easier when you copy and past the the text of the error messages.
If there are really a whole lot of error messages, then usually the
first few are more interesting then latter ones.

Am 01.04.2018 um 17:34 schrieb nop head:

That should be the best resource for this topic:
https://www.freecadweb.org/wiki/OpenSCAD_Module

With kind regards,
Michael Frey

a few examples attached

2018-04-01 19:00 GMT+02:00 Michael Frey michael.frey@gmx.ch:

--
|||||
@(~Ô^Ô~)@
-------------oOo---U---oOo-------------
|                                    |
|  Bo Herrmannsen                    |
|                                    |
|                                    |
| "blessed are the "cracked",        |
|  for its they who let in the light" |
|                        Ooo        |
|_____ooO(  )|
(  )    ) /
\ (    (_/
_)

I think you need to find the lowest node in the tree with the error. All
nodes above that with errors are probably knock on effects.

The picture on the screen looks nothing like anything recognisable in the
y-motor-bracket.

On 1 April 2018 at 18:57, Bo Herrmannsen bo.herrmannsen@gmail.com wrote:

must be this one, of course an direct export to step from openscad would
have made it a tiny amount more eaasy :-)

2018-04-01 20:06 GMT+02:00 nop head nop.head@gmail.com:

--
|||||
@(~Ô^Ô~)@
-------------oOo---U---oOo-------------
|                                    |
|  Bo Herrmannsen                    |
|                                    |
|                                    |
| "blessed are the "cracked",        |
|  for its they who let in the light" |
|                        Ooo        |
|_____ooO(  )|
(  )    ) /
\ (    (_/
_)

ahh think this is the one:

2018-04-01 20:06 GMT+02:00 nop head nop.head@gmail.com:

--
|||||
@(~Ô^Ô~)@
-------------oOo---U---oOo-------------
|                                    |
|  Bo Herrmannsen                    |
|                                    |
|                                    |
| "blessed are the "cracked",        |
|  for its they who let in the light" |
|                        Ooo        |
|_____ooO(  )|
(  )    ) /
\ (    (_/
_)

It looks like it is the teardrop holes that it doesn't like. They are
linear extrudes of a hull so it looks like hull doesn't work. I think
FreeCAD calls OpenSCAD to do the hull so perhaps there is a path problem.

Try isolating it to a call to teardrop_plus() and if that fails post it to
the FreeCAD issues.

On 1 April 2018 at 19:18, Bo Herrmannsen bo.herrmannsen@gmail.com wrote: