@Rich-O-Brien I'm not open sourcing the print files yet but we'll see. This is going to a friend to test to see if it's even going to be useful.

Cool story about the sock remover. Maybe something like that would happen for me.

@Rich:
that's exactly what I did, but it didn't prevent exporting everything!

I would like to do something to smooth it out but it's fine as it is. The threads have a fit typical of metal ones but it won't whistle. I think because the PLA doesn't resonate like bronze, brass, or iron would.

I expect I could run steam through it. Once.

@rich o brien said:

Are the chairs known to fail over time when lifted by its intended bar?

I've seen broken backrest frames before although not specifically related to this model of lift. The welds and the hinge mechanisms are clearly not designed to support the about 13 Kg weight of the chair all the time, not to mention the added g-load when traveling over bumps on the roads.

@rich o brien said:

If you patent it I've the perfect name for it... Axle RoseUp

Very good. If I go that route I'll give you a cut of the profits. 😉

@gullfo said:

if the imported objects are "solids" then you could use "outer shell".

This is exactly what I was looking for. Thank you.

Is this possible even because it seems difficult to execute especially when it comes to quality and the aetheticness of the sketch. As i have been into this category since 2003 and never found these statements.

3D printing, desktop 3D printing machine, rapid prototyping, additive layer manufacturing, digital manufacturing of objects, ... these are all different and confusing terms of an emerging technology that we often encounter on the Internet and in media reports. All the tech world geeks, engineers, architects, inventors and designers are talking about the complex technology of the 3D printer and it is even mentioned as a new industrial revolution.
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@involute said:

Model in inches, export STL in mm

That's not what I was telling you to do but if it works for you, great.

If you want to try going with guides route, one easy way of making a fixed length guide is to start on the origin, then pull out on green and make it the length of your build plate. Now you easily see the cpoint but the tail is hard to see when it's on axis, so just move the guide off axis a bit for visibility. Now array 3 more copies. But since you can't inference to the tails, easier to array in a 2 x 2 grid that is sized to your build plate. Anyway, get the cpoints in place first any way you can, then rotate the tails in place later, just my opinion, there would be 50 ways of doing this. Then make them a group and move the corner back to the origin. Just a thought.

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Just curious if you tried any of the suggestions above? Perhaps once you have the form you are looking to do a print of you can re-create a clean solid version in a new sketchup instance with the intent of 3d Printing it.

I would think most "Design Architects" would agree with the previous comments posted above regarding workflow.

Any chance you can post an example of a model you created so we could take a look at what your needs are?

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I had the same problem as you 1 week ago.
idle breakout

What a strange thing to do. Probably 100 or more STLs on Thingiverse when one openscad for each external shape would do it if it's written with variables as it should be. In fact one openscad with the shapes commented out and you are where you need to be.

Even then it seems a bit pointless because surely anyone that prints things with any of these 3d printer has done this for themselves at some point.

Still I suppose you have to keep up the thingverse tradition of posting what you did even though no one else can see a use for it.