Jump to content

le60head

Eurobricks Citizen
  • Posts

    278
  • Joined

  • Last visited

Everything posted by le60head

  1. Many thanks, Philo! I'll make sure to put some 5v load, and i'll see how to cut the voltage from 12v to 10v. That should be enough for safe operation.
  2. Hello! My plan is to use an old PC PSU some kind of power supply to charge multiple EV3 batteries at the same time. Since I am no expert, I wanted to make sure the following idea would be safe. If you are familiar with the EV3 rechargeable battery, i would really appreciate it if you could share some thoughts on this matter. The specs of the official LEGO charger (# 8887 ) used with the EV3 battery are: 10V - 700mA - 7W From what i know those are the minimum requirements for the EV3 battery to be charged properly, and that it can be charged safely using any voltage between 9 v and 12 v. Let's say i want to charge 5 batteries at the same time. If I use a 100 watt Computer PSU and connect the battery terminals to the 12-volt power supply would in that be fine? Also do you know whether the EV3 batteries have built in protection and automatic switch-off, so that i can charge them safely using the example above? I would be very thankful to hear what you think about this idea! Thanks in advance!
  3. My bad! The sound for the Elephant is included in the EV3 Retail software as well. Look for "Elephant call" under Animals
  4. Right. One thing i would be missing would be the sounds for the program - the one the elephant makes when raising his head. And Jim, thanks for correcting the tittle!
  5. Hello everyone! I recently decided on building the awesome Elephant robot from the 45560 Education Expansion Set. I found the building instructions uploaded. Naturally, now comes the question whether the program for this robot is available for free download? I suppose the program is included in the EV3 Education Programming Software, which need to be purchased. ( Unlike the Home Edition) If you know whether it is available for download somewhere, please let me know. I would much appreciate any information on this topic. Thank you in advance! -------- Here's the link for the building instructions. http://robotsquare.c...0-instructions/ p.s. Seems like I've misspelled the P.S. Seems like i've miss-spelled "EDUCATION" in the title of this topic. Sorry about that :/
  6. Hey guys! I improved on the design of Sariel's autovalve compressor to come up with this: It is pretty solid and works reliably. I have used the old style pneumatic switches: \ It should be easy to use the newer type, but i dont have any to try it. It currently powers only one pneumatic pump, but it should be easy to add another. The NXT motor has plenty of power to power more. My goal was to be able to fully extend / retract a small pneumatic piston in around two seconds using the compressor. You can download the .lxf file here: http://lebgo.org/forum//index.php?app=core&module=attach&section=attach&attach_id=196 The original design by Sariel can be found on his website here: http://sariel.pl/2008/12/pneumatic-autovalve/ I'll make a video soon :)
  7. i think it should work fine :) If u have trouble, i'll try to see for sure if it is compatible with win7
  8. Im verry sorry to say that i will not enter the competition. One of the three robots's program was lost. Too bad :/ Heres a video and a photo of the two that i did manage to finish :) Good luck to all the other participants!
  9. Hello! First of all thank you for organizing this great competition! I like the theme very much, because it is very different from all the other building contests i've seen so far. So it was a challenge I could not skip! I wanted to make sure that my entry in the competition meets the rules of the contest. The rules state that each model needs to have a different function. ( For example no 3 GBCs) My entry will consist of 3 seperate robots. Each has a different function, but they all work in tandem. The first one collects and carries zamor spheres over a short distance; The second picks up and drops the balls onto a conveyor belt; The third looks like a conveyor belt and can sort the balls by color. I think that since each robot performs a different action ( and not the same) they have a different function. Please tell me if you think my entry is suitable for this contest :) Thank you in advance!
  10. Thanks guys! Your replies are much appreciated! I'll make a photo of the second variant built with real bricks, and with working lights as well. It seems to be impossible to make a comparison between a real photo and a LDD screenshot Done! i added the photo to the first post Unfortunately i've never seen an american school bus in real life. I used only pictures as a guide to building this model. The previous version of the bus had different colored flashing lights on the roof, but i changed them to single color since i altered the construction a bit. Here's a pic of how the flashing lights looked before: Would it be okay if i use transparent red for all the lights on the top? Or do they absolutely have to be different color: amber & red? And yes, the bus is RC. Here is the full presentation: http://www.eurobrick...showtopic=62632
  11. Lights would work in both versions. Maybe i should make a real photo of the second variant. Good question about the label. It should be written "school bus", but it is too long to be written with original tiles with letters.
  12. Greetings! I'm trying to decide which of those front-ends would look better on my lego bus. Each variant is corresponding to a different generation of the Bluebird All American. I'd greatly appreciate your input! Thanks! or On the left: Early 1980s All American Rear Engine (1957-1988) On the right: Blue Bird All American A3 (1999-present)
  13. Great review! I was always wondering what this set was all about. Thank you for all the pictures and explanation! The only thing i'm stil wondering is whether there is anything else on the CD apart from the building instructions?
  14. That is an amazing achievement! Very well done!
  15. @ DrJB: That's a good idea, thanks!
  16. Very nice idea! I like it a lot! My only concern is that the technic panel 5x9 is a bit pricey. The little shelves that support the minifigs are a brilliant idea!
  17. A small update: The bus finally has working headlights. The servo motor works great with the steering. Much better than the previous system. Hope i manage to finish it this weekend.
  18. @ AndyC: I just tried it, and no, it seems that the PF Train Remote does not work with the Mindstorms EV3.
  19. Great news! The 88003 PF L-motor and the 88004 PF Servo motor are finally being sold separately at shop.lego.com! Thank you TLG!
  20. Could be possible, but u would need to write a driver for the EV3 P-brick in order to use it in your robot :P Also that would just add 2 motors, and the point for me at least is to control 4 channels with 2 pf motors each = 8.
×
×
  • Create New...