 | | Re: Helicopter
|
|
Hi Ross and many thanks for your support ! I also thought about using specific Technic "swashplate", but I concluded as you did : collective control could'nt be achieved because of friction. So keeping the large technic turntable was the best way... (...) (20 years ago, 3-Feb-05, to lugnet.technic, FTX)
|
| |
| | Re: Helicopter
|
|
(...) Hi Pierrick, that's nice work! And I'm glad I could provide a little inspiration. The weird thing is, that helicopter was the first MOC I built after my dark age too! I like how you control the swash plate (turntable) from below - the probably (...) (20 years ago, 2-Feb-05, to lugnet.technic, FTX)
|
| |
| | Re: using PWM output to control Lego motors
|
|
(...) The signals output by the RC receiver will drive servos or RC motor speed controllers. The signal consists of a pulse of 1-2ms width in an 18ms cycle. For a servo, 1ms corresponds to 45 degrees turn one way, 1.5ms to centre and 2ms to 45 (...) (20 years ago, 2-Feb-05, to lugnet.robotics, lugnet.technic)
|
| |
| | Helicopter
|
|
Just a few words from a newbie annoucing his first MOC : a (yellow) Technic Helicopter. As I said on (URL) MOCpages>, I had left my Legos from ten years now, and thanks to my kids, who are now asking me to play LEGO back, I have retrieved old Lego (...) (20 years ago, 2-Feb-05, to lugnet.technic, lugnet.announce.moc, FTX) !!
|
| |
| | Re: using PWM output to control Lego motors
|
|
(...) Thank you, this clarifies things for me quite a lot. I was thinking that PWM was PWM, but now I see the important difference -- one is a means of transmitting data, and the other is a means for controlling current (integrated over many (...) (20 years ago, 2-Feb-05, to lugnet.robotics, lugnet.technic)
|
| |
| | Re: using PWM output to control Lego motors
|
|
PWM for servo pulse is on a three wire system (Pos, Neg, and data). The pulse is a series of different length square waves sent to the servo or ESC in a certain length of time. This pulse is then translated by the servo or ESC as a "position" it (...) (20 years ago, 2-Feb-05, to lugnet.robotics, lugnet.technic)
|
| |
| | Re: Volvo FH12 6x2/4 500 Globetrotter XL, Sweet Candy, Scale 1:13
|
|
(...) SHHHHHH! Vineet! It's LEGO! Apparently lego can't be pluralised. Ye log maar dalenge! Legoswami Samarth (20 years ago, 2-Feb-05, to lugnet.modelteam, lugnet.technic, FTX)
|
| |
| | Re: Volvo FH12 6x2/4 500 Globetrotter XL, Sweet Candy, Scale 1:13
|
|
SNIPPIFIED! Wow Anders!!! FANTASTIC TRUCK! It's neat that you posted this, my own 10-wide Lamborghini Countach is nearing completion and it rocks! (Yeah, I had to get that out of my system) I've always loved your superior detailing, but this really (...) (20 years ago, 2-Feb-05, to lugnet.modelteam, lugnet.technic, FTX)
|
| |
| | using PWM output to control Lego motors
|
|
In my ongoing quest to control Lego robots by radio, I've uncovered some receivers made by GWS that work with a standard model airplane transmitter, and have 4 channels of standard PWM (pulse-width modulation) output. For example, see (URL). But now (...) (20 years ago, 2-Feb-05, to lugnet.robotics, lugnet.technic)
|
| |
| | Re: Volvo FH12 6x2/4 500 Globetrotter XL, Sweet Candy, Scale 1:13
|
|
Gaasedal- That's a very good truck! I wish I had those type of building skills (and thatmany legos)! You are really talented! (20 years ago, 2-Feb-05, to lugnet.modelteam, lugnet.technic, FTX)
|
| |
| | Volvo FH12 6x2/4 500 Globetrotter XL, Sweet Candy, Scale 1:13
|
|
Hi everyone, Here is my latest creation (URL) This is my second large scale truck. It has been quite fun to built it, and I have used a lot of new colors on the model. It is a model of a Danish custom truck from the Danish hauler Henrik Guldager in (...) (20 years ago, 2-Feb-05, to lugnet.modelteam, lugnet.announce.moc, lugnet.technic, FTX) !!
|
| |
| | Re: Lego RC set 8369
|
|
Tommy Eriksson schreef: (...) For as far as I know, it can stand a drop of rain, but don't use it as a submarine ;-) (...) I have that same question. If you want to use a regular RC transmitter, you will have to open the LEGO receiver and check how (...) (20 years ago, 1-Feb-05, to lugnet.technic)
|
| |
| | Re: Looking for a one-way motor drive mechanism that is foolproof.
|
|
Not so very compact, but this arrangement does the job: (URL) (20 years ago, 1-Feb-05, to lugnet.technic)
|
| |
| | Re: Paul's Ferrari
|
|
(...) in the background.... Go Panthers <g> (20 years ago, 1-Feb-05, to lugnet.technic)
|
| |
| | Re: Looking for a one-way motor drive mechanism that is foolproof.
|
|
(...) Here (URL) is one compact arrangement using the sliding worm gear that should do the trick. Just connect the output shafts with two 16t gears and I think they will work the way you want...or if one is still going backwards, use three 8t (one (...) (20 years ago, 1-Feb-05, to lugnet.technic)
|
| |
| | Re: Two new mountain bikes
|
|
Cool! That BMW suspension does exist on some real MTB's but you kknow that already right? Not to fond of the pedals and the saddle is not very accurate I'm afraid. Barends is not that common on full suspension bikes either, but that comes down to (...) (20 years ago, 1-Feb-05, to lugnet.technic)
|
| |
| | Re: Looking for a one-way motor drive mechanism that is foolproof.
|
|
(...) While the differential sounds like a good idea, I'm not sure that will actually work well, either. Assuming you want axle 'A' on the conveyor belt to always drive forward, you can connect a motor to a differential. The diff. will have two (...) (20 years ago, 1-Feb-05, to lugnet.technic)
|
| |
| | Re: Looking for a one-way motor drive mechanism that is foolproof.
|
|
(...) see: (URL) specifically: (2 URLs) - David (20 years ago, 1-Feb-05, to lugnet.technic)
|
| |
| | Re: Looking for a one-way motor drive mechanism that is foolproof.
|
|
Well, I want to make sure that the drive mechanism doesn't accidentally try to start the wrong way, and try to either feed material into the hopper base, which is hard to clean out if I have to make it easily removable, or jam and stall the motor (...) (20 years ago, 1-Feb-05, to lugnet.technic)
|
| |
| | Re: Looking for a one-way motor drive mechanism that is foolproof.
|
|
(...) Off the top of my head I can think of two ways, neither completely compact. One is to use the sliding worm gear trick, and take the two outputs and connect them to the belt in such a way so that if output A is engaged it drives the belt (...) (20 years ago, 1-Feb-05, to lugnet.technic)
|
