It's to prevent wear and damage to the anodizing on the chair's axle tube. The lift is designed to be very generic and so it's not really an incompatibility thing. The lift is intended to pick the chair up by the 19mm aluminum cross tube on the backrest but that's not a real strong part to hang the entire weight of the chair from, especially on rough roads. I designed and printed some hooks to lift and support the weight of the chair by the axle tube. In the picture here https://flic.kr/p/2peh56W, there's some white foam tape that was used temporarily. It's not very durable, though.

Hard to say from just a single image. What orientation was the model in on the bed? What material?

[image: 1748383936810-4b7ab5ae-f601-42af-a676-ccd076cf68b1-image-resized.jpeg] This is what I’m trying to make in TPU

@Rich-O-Brien thanks

@Dave-R Thank you!

obviously not. mysterious!

@Rich-O-Brien yeah. I also wonder how long they will last. Actually we're replacing all the windows in our house this year so this one doesn't need to last a real long time. A neighbor down the street has the same kind of windows and has a number of broken ones so I'll print some for him, too. I have no idea but my guess is they were used on another type of window, too.. And maybe in a different way that would make the the curves, notch, and second set of holes required. Those features certainly aren't used in the application on our windows. I like the new version better, too. Thanks.

@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. طول عمر سرطان استخوان

@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