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I’m picturing using a mixture of pinned columns and normal columns which would allow for layout variation between floors. I’d imagine you would only need a few of the pinned ones to make sure the second floor doesn’t shift around.
Have you considered adding pins to the column pieces as an alternative to pins on the walls? For me it would look less conspicuous than the pins on the walls, while helping secure each floor in place.
Yeah, I’ve had the same thing happen to some longer prints which can be frustrating. Improving layer adhesion can help (https://www.youtube.com/watch?v=Bl2ESvtBiLo&t=748s)., but it can be difficult to balance settings for good detail and good adhesion. I’ve also used the springy clips paso_fabri recommended. I like them but sometimes I find the connection has a little too much give. I ended up moving to magnet clips.
The printable scenery ones are great and provide a strong connection, but they require a bit of work.
I also designed my own magnet clips if you want to check them out on thingiverse (https://www.thingiverse.com/thing:3612827). The advantages of these are that they don’t require glue and they automatically line up the polarity of the magnets so orientation doesn’t matter. The magnets are definitely more expensive than the standard clips though. With this clip, however, at least you can reuse the magnets later on. I’m close to updating the thingiverse file with some alternate designs that increase the connection strength and some for ball magnets.
Hope this helps.
For those interested I’ve posted an update to the original file on Thingiverse which includes some accessory clips. The most important one is a clip that sits in between the two wall magnets and slides into the floor piece (the attached images should hopefully explain better). This helps support that connection which tended to be the weakest given the greater leverage on that joint. With them I could make structures that are surprisingly sturdy while still being quick to take apart and reconfigure, all without having to worry about the polarity of the magnets. The “double connectors” for the floor pieces are only necessary if you’re making really large structures with unsupported floors.
Clever Idea.! I’ll have to give it a print to test it out.
The height of the clip is about 3.5 mm and the opening of the openlock pieces is about 4 mm. Assuming the 5mm for the ball magnet refers to the diameter, I don’t think it would work. A smaller ball magnet should though. I’d be worried the connection strength would be weakened however.