I just finished your tutorial on this. I am going through your YouTube channel one-by-one just to get some basic experience with blender. What I really love about your tutorials is that they are short and designed to accomplished a single task, yet within that task you are exposed to a wealth of features. I can tell this is your teaching background seeping through (either by design or by habit). There are a lot of tutorials out there by many self-professed industry experts (ie: blenderguru: great knowledge, poor teacher) but their tutorials fall short as a learning experience because they do not know the principles of knowledge acquisition.

Sorry, that was my preamble. My real comment here is about blender units. You stated the tutorial by describing that this project could be used for 3d printing, however, you were not aware what "Blender Units" equated to in the real world. I guess blender units are similar to Max units in that they are just a proportional relationship to objects within the app itself. However, Blender offers this unique experience that I believe Max does not. The ability to use different measurement in the same scene for different objects.

So, I experimented and each mesh object garnered different results. My hope was to place a cube at 1 blender unit and then add a sphere, let's say at 10 cm to see what it equated to. Each time I performed that action with different mesh objects I got different results. As an example cube and sphere seem to be added consistently at the same ratio in size. But a cylinder changes drastically when unit convention is changed. This makes it very difficult to estimate what a blender unit is compared to real world measurements.

The problem I am faced with real world measurements in relation to your tutorial, if I truly wanted to send it to 3d printing, is that will conventional units actually apply and when you used real world unit (imperial or metric) the objects are so small that the blender zoom feature can only get close enough if in orthogonal mode.

<strong>bandolin</strong><br />
[Former 3DS Max forum coordinator]<br />
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