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BrianGT
Eurobricks Vassals
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Thanks for sharing! Your videos convinced me to make a monorail this week based on your 3 car design. https://photos.app.goo.gl/uqbhseeAFqYBAbVPA Appreciate the awesome chain drive design. I flipped the motor mount to fit in my chassis. Here are instructions for the battery car: https://drive.google.com/drive/folders/11wOBWBtkJXlWJzdTy_jaHYyYpndeXlqi -
BrianGT replied to TechnicBrickPower's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingI tend to just not put batteries in my battery boxes and then put an extension cable from a 9v train controller to the battery box output terminal to power the model.
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Thanks, I built most of Tom Atkinson's large ferris wheel, but it is so cumbersome to move around, I likely won't ever bring it to a show. Picture next to this module's prototype: https://photos.app.goo.gl/ToqohdbdaM6axstt5 This one is surprisingly reliable. I am going to build another small wheel and see if I can get the piece count down and reduce the complexity of assembly.
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I built my first GBC MOC this weekend, with the target to make a lift module from the new 2x4 brick with axle holes from the Spike Prime set: Added some motor bracing and side guards to keep balls from rolling under, since I made the video, but seems decent reliable. If I put a large amount of balls in the infeed (~50+), the agitator can tend to sling them around a bit, and have seen a couple fall out the back. I wish I had a lower height to the stepper, but I maxed it out with the using double 5x7 frames as guides. As a result, the infeed pitch is a bit less than I would like. Built it for the "Spring Into GBC" challenge, spawned from the Great Ball Pit discord.
BrianGT replied to Blakbird's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingI would detension the yellow one. For mine, I would start at a low setting and tension them until I noticed that they would drop slowly, then back off a bit. -Brian
BrianGT replied to nico71's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingAwesome job on the S2000, great job capturing the curves of the car!
BrianGT replied to Berthil's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling@Berthil Awesome re-engineering! Is it reliable enough to put in a GBC loop and leave mostly unattended?
BrianGT replied to Blakbird's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingThe original units supplied 10vac through a stepdown transformer, which feeds into the full bridge rectifier in the speed regulator unit to convert to DC and then through a voltage regulator to provide 0-9v. Many people now that I have spoke to at GBC events seem to be using 12vdc supplies, which are cheaper and more efficient with the switching power supplies, and readily available due to their use in security camera applications. The speed regulator bridge rectifier doesn't care if we are running 12vdc through it, and the voltage drop from the diodes isn't enough for the voltage regulator to care either.
BrianGT replied to Blakbird's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingI use these: https://www.amazon.com/R-Tech-UL-Listed-Switching-Supply-Adapter/dp/B00FEOB4EI Some would argue with this from a purist standpoint, as it isn't supplied by lego, or supply 10vac, but it works well and is cheap.
BrianGT replied to Berthil's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingYou can order direct from Lego Bricks & Pieces for $0.88 a piece for 1x16 DBG beams, up to 200 per order. -Brian
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