The motor is 49cm wide and 61cm high. You can't lift it from the top, you need a very wide beam which means that a crane has to be extremely high to be far enough away from the load. No lego crane I've seen (that didn't have hidden aluminium rods) could . But I'd be happy to be proved wrong by seeing a video of such a load being lifted far away from the centre of rotation, and if I can then also see what has been built into the boom ;-) Do you have such a video? 🙂 Translated with DeepL.com (free version)
@@legolaus1 I recently did a test lift of 10lbs with an 8 foot main boom and it picked it easily. I'll have to get back to you after some more testing. Currently I have it set up with a 6 foot main and 6 foot luffing boom while checking stability. The only non Lego parts that I'm using are steel rods for the main pivots as even carbon fiber axles were breaking, and I'm running 3d printed sheaves with built in bearings. The Lego pulleys wouldn't allow for enough to get the reduction needed and the plastic on plastic built up way too much friction. Edit: I very much enjoy your builds and they provide me with a different perspective on engineering designs.
@@mephInc Many thanks for the kind words 🙂. By "fake" I mean without steel or 3D. The motor weighs 20lbs, you have to lift it wide at the bottom, it has a very high centre of gravity. It is too unstable at the top, so a crossbar would be necessary. But that's exactly what I meant with the text, Lego alone has its limits, exactly where you have used bearings and steel
@@mephInc I don't condemn it either, you should have fun with your model. I publish the instructions on rebrickable and can't use anything other than lego there. So other solutions are taboo for me. That's why a crane made only from lego was out of the question for me, because it can't do it. You've named exactly the weak points
what are these cables coming out of the top of thi mindstorms?
The USB-Connector for communication with the second mindstorms controller. The slave works as a portexpander 🙂
@@legolaus1 I mean the round ports next to the buttons,are these for powering it ?
@@crazytechnic486 Ah, okay, yes, that´s my external supply
Schön zusehen das du immernoch am bauen bist
Dachtest Du, ich hätte aufgehört?
@@legolaus1 Ne ist ja dein Hobby aber lang nichts gehört aif WhatsApp hab aber auch nh neue nummer liegt vielleicht daran
@@bluefacemtb1423 Gib mir mal einen Tipp. Vorname?
@@legolaus1 Daniel
@@bluefacemtb1423 Der junge Mann mit dem Quallenbecken?
"A Lego crane without a fake cannot lost this motor"
A fake what?
The 1:35 LR13000 I'm building can most certainly can pick that up.
The motor is 49cm wide and 61cm high. You can't lift it from the top, you need a very wide beam which means that a crane has to be extremely high to be far enough away from the load. No lego crane I've seen (that didn't have hidden aluminium rods) could . But I'd be happy to be proved wrong by seeing a video of such a load being lifted far away from the centre of rotation, and if I can then also see what has been built into the boom ;-) Do you have such a video? 🙂
Translated with DeepL.com (free version)
@@legolaus1
I recently did a test lift of 10lbs with an 8 foot main boom and it picked it easily. I'll have to get back to you after some more testing. Currently I have it set up with a 6 foot main and 6 foot luffing boom while checking stability.
The only non Lego parts that I'm using are steel rods for the main pivots as even carbon fiber axles were breaking, and I'm running 3d printed sheaves with built in bearings. The Lego pulleys wouldn't allow for enough to get the reduction needed and the plastic on plastic built up way too much friction.
Edit: I very much enjoy your builds and they provide me with a different perspective on engineering designs.
@@mephInc Many thanks for the kind words 🙂. By "fake" I mean without steel or 3D. The motor weighs 20lbs, you have to lift it wide at the bottom, it has a very high centre of gravity. It is too unstable at the top, so a crossbar would be necessary. But that's exactly what I meant with the text, Lego alone has its limits, exactly where you have used bearings and steel
@@legolaus1
I agree about the limits. I didn't want to use "fake" stuff but things were breaking in spectacular fashion.
@@mephInc I don't condemn it either, you should have fun with your model. I publish the instructions on rebrickable and can't use anything other than lego there. So other solutions are taboo for me. That's why a crane made only from lego was out of the question for me, because it can't do it. You've named exactly the weak points