sawyer klegr
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Everything posted by sawyer klegr
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This lego GBC module uses three cardan gear mechanisms to rotate the platforms that the balls sit on. It is a reliable module when you have the timing between the loading and unloading mechanisms aligned right. The long technic axle you can see running through the front of the module is how it shares power between it and other modules. I am trying to make all my new modules able to share power in this way, as this way I only need one motor for every 4 to 5 modules. If you wan to build this module I have instructions on Rebrickable. More photos on Flickr. The mechanism to load the balls is quite simple, although it is not the most smooth. I would like to change the mechanism to something easier on the parts, maybe by making the main stepper tall enough to let the balls roll straight on. The unloading mechanism is inspired by Akiyuki's mechanism, although it is not exactly the same. This version uses the 2L rubber technic beams instead of rubber bands, and holds two balls instead on one. -
[GBC] Akiyuki Ball Factory
sawyer klegr replied to Berthil's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Nice! I like how you have used bright colors for the mechanism, it looks great while it is running. -
Thanks! It took quite a while to get it running well.
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Lego GBC Bucket Conveyor Module This Lego GBC module uses a conveyor mechanism with the buckets from the bucket wheel excavator set attached to it. It is a slow but reliable module, and it can (surprisingly) hold the GBC standard of 30 balls. The yellow rail you can see in the back is part of the mechanism that keeps the buckets at the correct angle. It works well but I would like to change it to use small technic wheels to reduce friction on the mechanism and make the parts last longer. The ldd file and instructions are of rebrickable here. The two gray 6L half beams help to stop the buckets from catching on the bottom of the module. I am not using clutch gears in the video but I have tested it with them. It would probably be a good idea to use them, the module ripped itself apart several times throughout the build and testing process. More photos on Flickr.
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Nothing better than a rainbow coloured GBC module ;)
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Thank you! No, I did not try that but it would work. I built it this way because I thought it would be more reliable.
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Thank you :)
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Thanks! I have the part list and LDD file on rebrickable here. What are your problems with the other module? If the balls are falling out of the forks you could try puting a small rubber band around where the two halfs of the fork attach to the belt. Thank you! They are longer then they need to be, I used these axles because they are black ;)
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How much torque does the pull back motor have? Is it comparable to a lego PF L motor?
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This lego GBC module use 3 brick separators to lift the balls up. I came up with the idea to use them like this after looking at a pile of them that I have and thinking that having more than 2 of them is kind of pointless. The module is quite reliable and in in theory could be made much higher easily. The loading mechanism is designed so that the ball can role back into the module if it does not role onto the brick separator properly, this happens sometimes when the batteries run low. (you can see at 0:46 in the video) The LDD file is here. More photos here.
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That could be it, have you made sure that there is not to much friction on the drive train to the stepper? That could also help.
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Cool! I hope it is working well :)
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Yes, that is what they are for.
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Hahaha, I know exactly how you feel ;)
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Hahahaha, thanks ;) I could not think of anything better to call it. The top arms are there to keep the balls in the cup, if they were not there the balls would fall out before they reach the top. Thank you! I am glad you like it.
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This Lego GBC Module uses a Scissor Lift mechanism to lift the balls up. The mechanism is quite reliable and sturdy, I never had problems with the balls falling out. The gear train is long but it does not have much friction because the stepper does not use much power. I would like to make one with more lift mechanisms similar to Akiyuki's six heads module but I don't enough of the cup pieces. The LDD file is here. More photos here.
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Thanks! It probability would work quite well as a ball pump.
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This lego great ball contraption miniloop uses a ball pump style mechanism to lift the balls up, when they reach the top they fall out of the "lighthouse" down onto the rocks and back to the start again. The mechanism is quite reliable and can be made as tall as you want, if it is built higher it might need extra weights to make up for the weight of the balls though. (I am considering using it for the start of my next module). LDD file.
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Thanks! This one took quite a long time to get working properly.
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Thank you! It does run quite smooth.
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This lego great ball contraption module uses technic "banana" gear to lift the balls up. It does put a bit of stress on the parts but it doesn't leave any damage. They are at a bit more of a angle than Maico Arts original version wich was 1.5 studs apart, this way it can be higher and run smoother. The stepper mechanism uses two lift arms on each step, this helps it run smoother and with less force on the motor. The LDD file is here.
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This lego GBC miniloop uses two lego gear racks to lift the marbles up, then they get dropped on to a switch mechanism that sends them back to the start again. The switch mechanism is fairly reliable for most of the time but sometimes when it has been running for a long time it can get stuck. The miniloop can be powerd by hand but it is quite hard to go fast enough to make the balls fall off of the platform. The LDD file is here.
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Thanks :)
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Thanks! you should, they are very fun to build :)
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Yes, I guess because it is so far from the marbles it can be hard to understand.