Giottist

Eurobricks Citizen
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    108
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About Giottist

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  • What is favorite LEGO theme? (we need this info to prevent spam)
    Trains

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  • Interests
    Rail Punk, Astronomy

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  • Country
    Germany

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  1. Giottist

    Rotory Snow Plow on Utube

    Nugras channel is full of exiting videos. He don't hesitate to destroy LEGO for the effect from time to time ...
  2. Giottist

    Powered UP to Power Functions adapter

    Do not crimp anything. The offered plugs are without connecting strips and are therefor useless. Just buy ready made pigtails and cables. Despite they seems more expensive they are not because you need no crimping tool.
  3. Giottist

    Powered UP to Power Functions adapter

    A real adapter cable is more complicated than described here: The old PF cables just connected motors and lights to the reciever but sent no information about the connected device back. The situation has changed with the introduction of PU. Even lights or the simple M motor / train motor tells the hub, what's connected. The smart Boost motor or the new L or XL motors have build in angle encoders substituting the old servo motor and send non trivial information back to the hub like the sensors do. Any adapter cable can only connect dumb motors to PU / Control+ hubs and simulate a simple M / train motor, but not more. TrainDragons solution does exact that. Ok, if this is enough, TLG can perform it too. I'm sure, the PU app and BAP will recognise the simple motors and expect no feedback from them. BTW: If you use the search expression "wedo legoing" at AliExpress you can find the first offers for ready made adapter cables or PU plugs for own designs. China ...
  4. Sariel made X-rays from the new motors. really promising for us!
  5. No, Im talking about the new L, XL and Boost motor with includes angle encoders.
  6. Hi Cosmik42, I've just got my first control+ hub and it works fine with PAB. Just a humble question: How much effort it costs to enable the angle encoder in the new L and XL motor an in the Boost medium motor? This is useful for turntables, moveable bridges, complicated switches and so on to let the motor turn only for a preprogrammed amount. (Hmm, or open and close the valve for pneumatic drives )
  7. Hi Cosmik42, Thank you a lot for the new version 1.4 I just tested it wit a real LEGO train in my office: It works perfect! Even the COM port delivers information sent from an Ardiuno at the tracks. Next step will be a limitation to the MAC adresses of my hardware to avoid interference with BT devises in my neighborhood.
  8. I've to add the code for the BAP editor: Just write: SerialPort ArduinoPort = new SerialPort( "Com3", 9600, Parity.None, 8, StopBits.One); // COM3 is the COM port for the connected Arduino in my computer, please look up your port ArduinoPort.Open(); // Do some communication like in the following sample: string message = ArduinoPort.ReadLine(); MainBoard.WriteLine(message); // The input will be displayed in the message window in the BAP shell. ArduinoPort.Close(); MainBoard.WriteLine( ""); // to print a line feed Do not declare any interface by yourself in the BAP editor, Cosmik42 did for us in the BAP code.
  9. Hi Sandra, I'm working at the same topic (ok, ok, occasional ...). Cosmik42 was so nice and enabled the C# COM Port interface in the BAP software. I'm thinking about a comparable problem to retrieve information about which indiviual train occupies which sector or a track sector is free. From time to time I think at RFID identification or barcodes beneth my locos. Arduinos can read out the sector sensors and send the information to the BAP software via the COM interface. I prefer the Arduino Mega due to its large number of IO ports. At the moment I've just tested the communication between Arduino and BAP. And not to forget to mention I got real help from Cosmik42 by PM. Thanks a lot!
  10. Giottist

    Replacement Wheels

    O really? I'll try it and report my results here ! Ok, chinese ball bearings are really cheap (I've bought 140 pcs.), enough to sacrify some ;) Ah: I'm using ball bearings of the MR 52 ZZ type combined with stainless steel axles diameter 2mm h9 40mm length made of alloy 1.2210 (115CrV3), known in Germany as "Silberstahl", both available at Ebay. The axles fit perfectly into the ball bearings. And thank you a lot for the Info for european brickrailroaders
  11. Giottist

    Replacement Wheels

    Hmm nice idea, but really expensive for europeans. I had just several struggles with german customs who would not accept, that I imported not illegal LEGO copies ... Do you think about an european distribution branch comparable to 4Dbrix or so? Btw.: The idea to combine ball bearings (recommended type MR 52 RR) with technic bricks is very good, we have just to widen the hole from 4.8 to 5.0 mm with a drilling machine for home use. (Ok Ok, watch on your fingers ...) On the other hand, this is only a solution for die hard brickrailroaders. For the masses it's more recommendable to lubricate the new all plastic wheels with a tiny speck of lithium grease. Please keep in mind the old bogies will die out in the more or less far future.
  12. Giottist

    2019 LEGO Trains - 70424

    No problem: It's a matter of minutes to clean up the old dirty grease and replace it with fresh one, using cotton swabs or a soft toothbrush for instance in combination with dish cleaner. The modern ball bearing greases are chemically stabilized. They are based on lithium soaps and not on more or less long and branched alkane molecules. Therefore they can't polymerize and become sticky and hard like old fashioned lubrication fats.
  13. Giottist

    2019 LEGO Trains - 70424

    Thats true, but the matching bogie 38339 is not available (now) That's not neccessary. Dedicated lubricants for ball bearings are made of lithium grease but may be cleaner than lubricants for common use. The friction reduction is very similar. The most important property is a rather high viscosity and resistance against dust and moisture. I expect no noticeable difference between the different grease types. The good news is that we can solve the friction problem with minor effort, very little money and most important no mechanical modification of any parts.
  14. Giottist

    2019 LEGO Trains - 70424

    New test results for the new wheel design: I lubricated them with a tiny speck of lithium grease: Now they roll down the ramp 20% further than the old design with unlubricated steel axles. The friction is lowered by more than a factor of two. Perhaps this makes any ball bearing unneccesary for general purposes. Ok, lubricated steel axles outperform lubricated plastic axles but the difference ist not so large. Next step will be a test track with a train MOD with four 34 stud wagons on bogeys ... Lithium grease has some advantages above oil: It is water- and dust resistant and it is like temperated butter but not a thin oil spilling around anywhere. I assume I have to clean the wheels from time to time but not frequently. My experience with thin silicon oil is not as good. Addenum: After several dozen tests the performance increases a litte bit, perhaps another 5% and can be compared now with lubricated steel axles. (Original unlubricated steel axles are more than 20% inferior now) It takes some time to build a final thin film of lubricant between the plastic parts. So, with a really tiny speck of lithium fat we can overcome the friction problem with really long or heavy trains. I guess, it won't be a problem for short toy trains anyway.
  15. Giottist

    2019 LEGO Trains - 70424

    Another source of information about the other new train ...