Like a few others here, I am having an issue with the lift mechanism in the Spaceport. I have linked it together with Marble City but even before that, it wasn’t lifting the balls to the top.
What appears to be happening is the balls go into the hole but then as the lift moves up, they get pushed out again so they don’t seem to progress.
If I tilt the little carriages back that hold the ball then they will move to the next level but without that, they all just get jammed.
And like everyone else has shared, the lift is much slower once linked.
Everything else runs well.
Here is a video of it - Dropbox
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I am welcoming you to the community but unfortunately did not do this one and would be no help. But I will tag @CustomerService so that they might assist you.
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Welcome to community. I don’t have this kit so I can’t help you. But many people had it. I think they can
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I wish I could offer advice. I completed mine and it runs perfectly (alone). I would never join mine after hearing of others issues after doing so. I hope that you can find a solution to your problem.
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Thanks so much for sharing your detailed observations and video! It’s inspiring to see your dedication to troubleshooting the Spaceport lift — these challenges are all part of the rewarding journey in building such intricate models. Keep experimenting with those carriages and settings, and remember, every tweak brings you closer to that satisfying moment when it all works perfectly. We’re cheering you on!
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I have bought a few of these kits and absolutely love them. The precision laser cutting and imagination is at the highest level.
But I wonder if several people have experienced the same issue, is there a problem with the design of this component?
Welcome to the community!
Perhaps RoboTime can help you with this, just like they created the post about the cuckoo clock.
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I love seeing new members! Theres quite alot today though. Welcome to the community @AlexK
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Nice build. Welcome to the community 
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Thanks. Is there something different I need to do? It seems I’ve followed the instructions correctly. I noticed in other threads about the same issue, new part were offered as it was stated that the design had been improved.
I have build this one too, but I did not have any problems. The both marble runs are connected and run smoothly. So unfortunately I don’t think I can help you.
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Welcome, @AlexK ! The ROBOTIME community is such a warm and creative place, and we are so happy to have you here. I also have not done this one yet, but @Robotime will definitely be able to help you.
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Hello, we have optimized this component. We would like to send you replacement parts for the original ones. This usually resolves jamming issues with ball entry and exit.
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That would be fantastic! How can I organise that?
Hello, I need some delivery information and will send it to you via private message.
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A few people have had this issues. Hope when you received the replacement part then everything will be working smoothly
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Welcome to the community. 
I think that Robotime has responded and I hope that you’ll receive your replacement parts soon.
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Has this been shipped yet?
ETA?
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let us know that this fixed your issue. Unsure where you live but I have herd usually takes about 2 weeks
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I’m in Australia so maybe a little longer I guess.