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Hi everyone, Today I want to introduce to you my latest MOC : a Poclain excavator, the HC 300. Poclain is a French company (bought in 2000s by CASE) leader in 60-70s in hydraulics excavators and engines. The HC 300 was the bigger excavator in the world in 1968 ! Specifications : I wanted to control the model with a smartphone so I used Control+/Power up applications. The excavator has also manual features. I used electrical linear actuators instead of pneumatics to enhance playability. The excavator must be able to rise one track from the ground by using the bucket and his motorized arm. Inventory is mainly based on #42082. The main design is based on 8043 set. The drive train is powered by 2 L motors and a dual differential drive : more informations on @Sariel video : https://www.youtube.com/watch?v=f5_OQooBxdY. This kind of transmission allows control by only one joystick one smartphone screen instead of two sliders. Configuration : 6 motors : 5 L motors (https://www.bricklink.com/v2/catalog/catalogitem.page?P=bb0959c01#T=C) and 1 XL motor (https://www.bricklink.com/v2/catalog/catalogitem.page?P=bb0960c01#T=C&C=85) 2 electrical hubs 2 000 parts Features : - Toggling cabin with mechanical locking system - 360° turret rotation : One battery box is placed in drive train and the other one is placed on turret. No cables through the turntable, only a shaft to transmits rotation from drive train to the V12. - Technical compartments : a lot of openable elements very useful to store tools and tracks components. The grid at the back can be opened to reveal V12 engine. - The entire bodywork is removable. It is only set on the turret by gravity. The entire of the excavator is modular in order to make disassembly easier. - V12 engine works when the excavator move. I add a maximum of details to make it more realistic. - The dual differential drive : Each motor drives one kind of motion, straight-line motion or rotation. Get more information here : http://groups.csail.mit.edu/drl/courses ... ldiff.html. You can also combine motions to get curved directions. Tension on tracks is maintained by springs. Originally made by @Anto : https://www.techlug.fr/Forum/viewtopic.php?f=5&t=11548 Inspirations : https://rebrickable.com/mocs/MOC-1312/yannmar/motorized-hydraulic-excavator/#detailshttp://www.techlug.fr/Forum/viewtopic.php?f=5&t=11548http://www.techlug.fr/Forum/viewtopic.php?f=5&t=11878&p=192932&hilit=excavatrice#p192932https://www.techlug.fr/Forum/viewtopic.php?f=5&t=11343&p=185867&hilit=excavatrice#p185867https://rebrickable.com/mocs/MOC-19850/Mowlwurf/42006-full-rc-mod-undercarriage-with-transverse-subtractor/#comments Conclusion : The video will come soon ! Building instructions too ! I hope you liked this creation, I tried to mix up realistic details and common excavator's features. Only displacement is slow because of a total weight of 2kg. HD pictures here : https://flic.kr/s/aHsmVM6rX2
AI toothbrush posted a topic in LEGO Mindstorms and RoboticsI have an android smartphone with an ir blaster and the rcx uses ir so can I control it with my smartphone? If I have to use some specific tools or need to do something complicated so it'll work I can.
Toa_Of_Justice posted a topic in Special LEGO ThemesThis is my custom device dock that can hold both my iPod touch and my Windows Phone at once--hence the name iWin. Tap or click any picture to enlarge it. In the front, there are two arms that ratchet down to prevent the device in the lower dock from tipping over when in a vertical orientation. In the rear, there is a knob that can adjust the angle of the iWin's rear frame. All 4 wheels can be unlocked (by pulling out the black bushing pins) for rolling around, or locked in place to act as rubber feet. The iWin can lean back very far, but there are a couple of angled TECHNIC beams that prevent the iWin from collapsing under the weight of any devices it is holding. Those beams also restrict the maximum vertical angle of the iWin. From left to right: iWin holding my Windows Phone (a Nokia Lumia 920 for those interested), iWin holding my 5th-gen iPod touch with an official LEGO case, and iWin holding both of my devices. All of the above pictures (except for the one in which the iWin is leaning back--I used my Lumia 920's own camera for that picture) were taken using a GoPro Hero3+ Silver Edition camera that I won in a sweepstakes. LXF File (current version) LXF File (old prototype, version 1) LXF File (old prototype, version 2) Brickshelf Gallery Bonus: I made a special stand for my iPod touch that attaches to its LEGO case. (These pictures were also taken with the 920's own camera.)