THIS IS THE TEST SITE OF EUROBRICKS!
ddimkin
Eurobricks Vassals
-
Joined
-
Last visited
Everything posted by ddimkin
-
ddimkin replied to brickosouch's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingCan you please share what the size is?
-
ddimkin replied to ddimkin's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingHehe.. after a while you get used to.. I want 40! :)
-
ddimkin replied to brickosouch's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingHi Brickosouch, thank you so much for sharing this info. I also have a fast car and use same FlySky system like you. In my car I use 2 x RC 5292 motors. Run the whole setup with a DC step-up converter to increase the voltage from my 3S LiPo to 14 volt and still not satisfied with the speed of the car - around 27km/h :) Since my model is ready I was thinking of replacing the motor in the RC 5292 with something like this: http://www.ebay.com/itm/271305602749?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT I wasn't sure if the one on eBay is more or less powerful then the original one so I asked in the forum and people pointed me to your topic :) I have a few questions and it would be great if you can answer: - I own 4 x PF L motors so I wonder if the atomic standard will fit in them too? - Could you please share measurements of the atomic motor - length, hеigh etc? I am sure you already checked on eBay but maybe one can find a cheaper alternative somewhere :) Unfortunately I don't see dimensions in the date sheet of the atomic motor. - And last question - how did you gear them down :) Since my model is ready and I would like to rebuild it as little as possible I was wondering what will happen if I connect motor directly to tires without gearing down - 100km/h maybe Now seriously - maybe I can take a weaker and cheaper motor and then connect directly without gearing down. I can see the gears you used very shortly in your video but if you can share info and maybe some pictures it would be fantastic. Thank you very very much!!! p.s. Here my MOC: https://plus.google.com/u/0/photos/109069650895357453401/albums/6054792203783224481 and it has remote controlled front and rear LEDs on the 3rd channel :)
-
ddimkin replied to ddimkin's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingThank you so much for the links - the first one is exactly what I needed. Will post in this thread in a second :) I already use standard 2.4Ghz system (actually the same FlySky as the guy with the LeMans car), RC servo and 3S LiPo and run the motors on 14 volts - but still getting only something like 26km/h :) Thank you very much!!! But still - if someone can answer the question about RPMs of Lego 5292 motor - please post! Thank you!
-
Hi All, I have built a fast car with 2 x RC Buggy motors but would like to make it even faster if possible. So I was wondering if I can change the "inside" of the buggy motor. I know Philo's page where he compares motors: http://philohome.com/motors/motorcomp.htm#Synthesis BUT!! I checked eBay and there a few Nichibo motors that are exactly the same size and seem to be quite fast but compared to what Philo meаsured they seem to be quite weak: http://www.ebay.com/itm/271305602749?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT Can please someone tell me if this motor will be more or less quick/powerful then the original motor? Philo maybe? Here is my MOC: https://plus.google.com/u/0/photos/109069650895357453401/albums/6054792203783224481 Thanks very very much!!
-
ddimkin replied to ddimkin's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingThe car got lights :)
-
ddimkin replied to ddimkin's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingThanks Le60head :)
-
ddimkin replied to ddimkin's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingThanks! The chassis is actually quite flexible so no real need for suspension in my opinion but the slicker wheels would be great. Unfortunately I own none of them but might get some very soon if I am lucky :) Then I'll probably lose some of the drifting-fun but we'll see :)
-
ddimkin replied to ddimkin's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingHere is version 2 of my speed car. It uses a 11.1v 1000mAh LiPo battery, which is very light. The model is now around 100g lighter and sooo much faster :) Pictures: https://picasaweb.go...24GhzRCSystemV2 Videos: p.s. could a moderator put a [MOC] in the titel please? I forgot to do it and can not change it now. Thanks.
-
ddimkin replied to z3_2drive's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingIt was the thermal protection of the motors - removed it and everything is fine :) The car is ready and drives - maybe not quite as fast as the one of z3_2drive but still quite fine :) Here is the new topic: http://www.eurobricks.com/forum/index.php?showtopic=99481
-
Hi, the car is equipped with two buggy motors and a 8.4v LiIon battery. Here some pisc and videos: https://picasaweb.go...feat=directlink Hope you like it :)
-
ddimkin replied to z3_2drive's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingThanks a lot!!! Checking if it is the controller of the battery pack. Seems that this pack consists of 4 x 18650 cells, which often have protection: http://www.lygte-info.dk/info/battery%20protection%20UK.html I wonder if I should remove that protection (if present) but not sure if this wouldn't be too "unsafe" :)
-
ddimkin replied to z3_2drive's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingHi again z3_2drive! Just a short question - do the buggy motors have a thermal protection? I build a testing model with two motors and connect them directly to a 8.4v battery using this type of speed contoller (not using the DC/DC convertor): http://www.nenovtech...ml#!prettyPhoto after a few dosens of meters motors kind of stop and when I lift the model they run again.. after a few seconds the model runs again for the same period of time :( which is basicaly 15sec or so.. I am using this battery: http://www.ebay.co.u...984.m1423.l2649 trying to find out what kind of protection is kicking in. Thanks very very much!!!
-
ddimkin replied to z3_2drive's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingThanks a lot!! I will test it for sure and also check Piterx's gearboxes.
-
ddimkin replied to z3_2drive's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingI think after some more searching I found a better integrated solution that might work for me: http://sariel.pl/201...utput-selector/ was posted here: http://www.eurobrick...showtopic=76395 but would it work on higher speeds?!?! I mean if the vehicle is not geared down further after the gearbox like a crawler probably is.. and I am intending to build a fast car like yours
-
ddimkin replied to z3_2drive's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingHi z3_2drive, one more question though - have you tried a gearbox on the fast-car? Would something like this here: be capable of shifting on the high RPMs the buggy-motors deliver? E.g. first gear 12x20 and second gear 20x12? Or accelerate the car on 1st gear then release the gas shortly then shift on 2nd gear and press gas again - all this done with the trigger and the 3rd channel button on the 2.4Ghz transmitter. If that doesn't work - is there any other type of simple 2 gears transmission that would work? Thanks a lot!!
-
ddimkin replied to z3_2drive's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingFantastic!!!!!!!!! Thanks a lot!!!!!! I should be having all parts to build something similar soon... let's see take care, man!!!
-
ddimkin replied to z3_2drive's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingYo!! I think this should work great too I just bought 3 x servos and 2 x buggy motors.. so I'll probably gear it down and build gearboxes on front and rear axle which I will control on the 3rd channel, something like TURBO. Or at least build a fast-car with buggy motors and a crawler with L-motors. For sure I will keep you updated! Thanks a lot!!
-
ddimkin replied to z3_2drive's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingHi and thanks for the replies and recommendations :) With "life-shortening" you probably mean the battery - is that correct? As I said above I am not very familiar with electrical terms so I guess draining more current from the battery quicker shorten its life but I have no idea how much. And yes - the crawler is quite geared-down so motors are never under highest load. The converter has a protection but it never kicked in. After all I decided to go with the setup from 2nd post here: http://www.eurobrick...opic=89651&st=0 Today I ordered more powerful voltage regulators: http://www.ebay.co.u...984.m1497.l2649 together with hobby RC components such as 3 channel transmitter, a speed controller and receiver. I am also planing to buy two buggy motors since they have a huge torque and RPM. I was thinking I can use them on a crawler too - with the speed controller I should be able to crawl real slow by having the same torque (if I am not mistaking something) and be fast on flat surfices. Is that correct? Unfortunately I won't be using 100% Lego components since I will use regular hobby-servos for steering but also now my setup is not 100% Lego. What do you think? Thank you!!
-
ddimkin replied to z3_2drive's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingHi z3_2drive and all, I would like to build a 2.4GHz remote system and I already posted on Brians topic here: http://www.eurobricks.com/forum/index.php?showtopic=90556 later today I found this thread and I think this is easier to build although a bit more expensive. I understand the whole setup but have a few questions regarding the power supply. Soon I will have 4 L-motors and 2 servo motors (2 x 9398 sets). I use 8.4V LiIon battery to power my creations such as this one: http://www.ebay.co.uk/itm/181296289459?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649 and a DC/DC converter to increase the voltage to ~ 11V. I have two of them: http://www.ebay.co.uk/itm/350963713406?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649 and was planing to use each in combination with one V2 Lego receiver. Of course I find the above RF setup MUCH better and wonder if it will work with the regulator (or regulators), the battery I own, the 4 L-motors and 1 or 2 servos for steering?? I know Philo's page reg. motors: http://philohome.com/motors/motorcomp.htm#Synthesis So my qustion is will the regulator be powerful enough or should I get a bigger one: http://www.hobbytronics.co.uk/u3v50alv-adjustable-regulator?keyword=step%20up%20regulator I can build the setup but don't know how to calculate electrical units so I need your help. Thanks a lot!!!
-
ddimkin replied to BrianZ's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingI think I understand it now. If I use two L298N on top of each-other I should get 8A and should be able to supply 4 L-motors and 1 or 2 servos with one circuit - right? I have a DC/DC convertеr which can provide constant voltage on the input (lets say 11v) and the rest of the components should be able to handle this setup I believe. Then I can connect 4 power cables to the site of the bridge for the motors and 1 or 2 cables to the other site for the servo/s - is that correct? Thanks a lot!!
-
ddimkin replied to BrianZ's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingHi Brian, a fantastic work!!! Have you managed to test with 11.1v? I would like to build such circuits and I think I should be able to. Something is not clear to me - if I want to use 4 L-motors (1 on each wheel) and lets say one or two servo motors (steering) on a model - will I have to have 3 receivers and 3 circuits or can I connect the 3 circuits to one receiver - 2 circuits on one channel and 1 circuit on the other? Will post the same question on your blog: http://brianzawesomeblog.blogspot.com/2014/01/lego-24-ghz-power-functions-radio.html On your blog you say: "The HobbyKing receiver just plugs right into that socket I built out of 3 four pin headers side by side." but I don't see how are they connected to each-other. Maybe I haven't red carefully enough The 11.1v are very important to me since I find the L-motors need over 11v to perform according to my needs - building rock-crawlers and also planning to build a fast car. Also which is the UK site you found that is selling the components - if I understood correctly that there is one? Thank you very much!!
-
ddimkin replied to ddimkin's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingI use this battery: http://www.ebay.co.uk/itm/NEW-6400mAh-8-4V-Battery-Pack-Pouch-For-CREE-XM-L-T6-LED-Bike-Head-Lamp-Light-/181296289459?pt=UK_ConsumerElectronics_Batteries_SM&hash=item2a3619d6b3 and such a DC Converter between battery and receiver to increase voltage and keep it constant: http://www.ebay.co.uk/itm/350963713406?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
-
ddimkin replied to ddimkin's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingTo block it :)
-
ddimkin replied to ddimkin's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingThanks!! Thats the park nearby :) Sofia/Bulgaria.
Sponsored Links