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Hello
@Bob
1.Other than Paypal it is possible to pay directly to the company bank account.Send me a PM for details.
2.About checking of touching solids...if this is important for your design maybe you can scale every solid a little and then check the intersections.Otherwise I don't think that such a tool would be generally useful.
@cadmunkey
Yes, SuSolid plugin is running form the day one of SU2015 without any problems.
Hello and sorry for the late answer,for using the intersection tool you need the pro version of Sketchup.
You are right ,everything must be solid, but that is Rule no.0 
Hmm, I know is a little bit tricky to understand or explain, but the most 3d printers accept STL files. And STL file does not contain unit information. So if your 3d printer accept STL files, you can use this technique.Your 3d printer assumes that model is in mm and that is ok.There is no need to change units in 3d printer settings.Just in Sketchup and at the time of exporting STL file from Sketchup with the STL plugin.
Example: If I draw an 1mm3 cube and export the STL file choosing mm as the unit ,the STL file will be exactly the same like I draw an 1m3 cube and export the STL choosing m for unit.
Hi Marcus,
From my experience there is no need to scale back the model to mm,so risk to deform a model.
In my workflow I just export the model in STL format by selecting meters for unit.
The STL file does not have the information of units,so 1m will be exported like 1.0 ,just the same like 1mm would be if exported in mm.
So my workflow is mm safe
Step by step:
Draw in meters (1mm is 1 m) or import STL file and choose m for unit
Export the STL file choosing m for unit.
The biggest problem in Sketchup is the small sizes in mm range.Thats exactly the most often dimensions for 3d printing.
It seems Sketchup is rounding some floating point variables probably because they are near the limit of number of decimals.
The result is that the vertices of faces are not planar and the model has slightly different dimensions of wanted.Also sometimes the solid tools are producing a non-solid.
The problem is very visible when importing STL model from Thingiverse in mm scale.
So the no.1 rule is to scale the model X 1000. So 1 mm is 1 m ,or 1 inch is 1000 inch.
But the model should be drawn from the begin in bigger scale ,or imported directly in m ,and exported in m to STL.
Good luck in 3d printing from Sketchup
David
Ahh... is because of the construction line.If you delete it,you will have no errors.
Anyway I will exclude this error possibility from the code and send you a new version.In meantime just avoid construction lines for the tool that you were using.
Or you can use the free version till then,that don't have this bug,I have checked it and is ok with your model.
EDIT
The version is now corrected and checked on your model.
Also the version on the server is now updated.
But you can admit that i have a good debugging system 
It shows me the exact line of code where the bug is
David Malnar
Check out this new video related to 3d Printing from SketchUp.
Is about reversed faces,that cause my first ever printed 3d model to not have 1 hole that suppose to be.Later I discovered that the face in the hole was reversed.
This is why now the SuSolid plugin can show you and fix all reversed faces in solid model.
David Malnar
[flash=425,355:3j7eqwd4]http://www.youtube.com/v/7u0h0E_5EVA[/flash:3j7eqwd4]
Hi,
Not sure it is is exactly what you need ,but my "Divide" tool in SuSolid plugin will divide non-solids in base of internal faces.
So,for example if you have one cube and one face in the middle, the output would be 2 solids. You can check here http://www.susolid.com/susolid_divide.html
David Malnar
Hello Ken,
Due to many changes in every version of Sketchup and also due to many updates that I made in SuSolid Plugin,I have decided to offer the Lifetime Updates option to all my customers. That means you will receive every update of SuSolid "forever" ,for the modest price of 11 EUR (only once).
With 3d printing I have received biggest demand to continue developing my plugin and I also have more ideas to make the SuSolid plugin more 3d printing friendly and up to date.
So,if you find my plugin useful and want to support additional development,please make a purchase of the "SuSolid Lifetime Updates".I will send you (and to others) a link to your mail.
And yes,the latest version is SU2014 compatible.
David Malnar