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Philo

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Everything posted by Philo

  1. Philo
    t01o0714.dat, t02i3333.dat, t02o3333.dat are tori primitives used to get bevels on studs and soften logo. But I see no reason why your extruded logo3 file gives weird result, it's geometry is very simple and flawless IMHO. See a colored snapshot (LDView) showing its structure:
  2. Philo
    Amazing images! Just missing logos indeed ;) I don't see why these logos shouldn't work - but you have to look closely at the batch files provided byt the author: to make them work you need to rename file stulogo_v3.dat into stulogo.dat. Don't forget to place all tori primitives (t01o0714.dat, t02i3333.dat, t02o3333.dat) in your LDraw\p folder.
  3. Philo
    Sure it's possible! But it's kind of garland like, and cable is no longer available from LEGO. You better do some cable splicing between a NXT/EV3 half cable and a half PF extension cable. Connect the two wires on RJ connector latch side (black and white) of the Mindstorms cable to the middle wires of PF cable. Another possibility is to use Mindsensors GlideWheel PF Motor controller for NXT or EV3. More expensive, but you get a position encoder...
  4. Philo
    Sorry to chime in late, but it seems you figured out everything... much more educational this way
  5. Philo
    Because of its construction (conductive rubber) RCX sensor bas an internal series resistor of about 500 ohm. This acts also to limit current if switch is inadvertently connected on a motor port. For the same reason NXT sensor has a 2.2k series resistor. Except for this protection function it is not useful, so I wouldn't bother to add it.
  6. Philo
    @Hrafn: you are right with the cables, this is done on purpose to avoid any mistakes such as injecting current in a battery pack. Of course it is annoying for people who know what they do.... You have to do some cable surgery.
  7. Philo
    Well... More or less. First IR receiver V2 current limit is about the same for one channel as two battery packs in parallel. And it's actually more a power dissipation limit in the receiver than a current one, for a short time it can provide significantly more...
  8. Philo
    Fully discharged battery charging time is a bit less that 2 hours. But new batteries are sent partially charged.
  9. Philo
    No... except putting less load on them! This device is not a capacitor, but a thermal fuse limiting current in the motor for safety reasons. Here it looks like the power to your motor will be limited by receiver or battery pack anyway! Yes it does! V2 is able to supply 1.5A per channel, 2A and more for short time, while V1 is rated 600mA per channel, 1A for short time. More details here.
  10. Philo
    Is it V2 receiver or your battery pack that limits power???
  11. Philo
    That's because LPub integrated pdf generator uses next standard paper size greater than needed dimensions. You either have to choose your page dimensions to fit standard paper size (and because of some rounding issues it can be tricky to avoid a thin white line around colored background), or use png export and rebuild pdf from there using another tool. This later option is not made easier because lpub names the images xxx_page_1...xxx_page_9...xxx_page_10...xxx_page_99...xxx_page_100... so files doesn't sort easily in correct order! Edit: This can be another solution (not tested!)
  12. Philo
    70127 - Wolf Legend Beast (Legends of Chima) SR3Dbuilder file MPD file (OMR compatible) Missing parts: stickers.
  13. Philo
    Yes, but a V2 receiver is highly recommended! See this
  14. Philo
    Maybe you have a buggy part that has some element far outside main volume, making its envelope really big?
  15. Philo
    Very nice! Always fond of "useful" Mindstorms contraptions!
  16. Philo
    Excellent! I was curious to see the relationship between Gray code and Heighway Dragon Curve, fortunately Wikipedia provides some enlightments... aeh5040, the string of Geneva wheels directly counts Gray code?
  17. Philo
    That's indeed the only solution. Spybotics cable contains a red LED and a phototransistor, converting RS232 serial levels to/from light. This end plugs into spybotics that contains opposite optoelectronics elements.
  18. Philo
    Ah - sorry, looks like I missed a chapter in the story ;)
  19. Philo
    What about using Technic pulley this way? Granted, it is not centered, and end peg holes are not exactly one stud apart, so there is some part stress - I have not tried with physical parts...
  20. Philo
    You have to create the stickers as LDraw parts. The tool of choice for that is Ldraw Pattern Creator. There is a documentation (automatic translation from French) here.
  21. Philo
    May I suggest to use LDraw/MLCad/SR3Dbuilder where these parts are available, as well as most Technic parts?...
  22. Philo
    50301 is composed of parts 32495 and 32496. None of these seem available in LDD.
  23. Philo
    Interesting... I must say I wouldn't have dared to use a voltage divider to power the receiver, but if it works... Good luck for the following work ;)
  24. Philo
    Looks interesting, but at the moment many thumbnails link to themselves, not to full size images (OK, we can have a look at you BS gallery...)
  25. Philo
    I have not tested the new BIs, only the ones of 31313. If you double tap on a part, you get a popup windows showing item number, color, and for some parts (axles, beams) its length. Not perfect (name and design number could be displayed too), but it helps! Overall, I like them, but like Calabar I find some animations a bit slow to my taste (especially the return to programmed angle/zoom when going to next step).
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