piterx Posted June 27, 2014 Posted June 27, 2014 Hello dear guys! As i promised i'm opening this thread to show you the process of building the moc you helped me choosing :) I don't like too much WIP threads because i'm never sure the project won't turn in a failure at the end ahah btw features: RC openable doors hood and trunk (hopefully as close as possible to the real one) front independent suspensions with a nice turning angle openable front lights with maybe LED lights tubolar chassis interiors so as you may assume by a quick look at this image, the scale will be really small 2 RC motors mean that this car will be overpowered lol....once finished i'd like to see if i can turn it from a 1:1 ratio to a 2:1 while keeping its drift abilities. I won't put rear suspensions as they wouldn't fit and actually there's no need to add em... I've checked the blueprints and the proportions between wheel diameter and axle lenght and they are perfect :P (how lucky) in between the 2 rc motors there will be one of the two lipo batteries...the second one will be placed in the front for a better weight distribution now i have to find a place to put the IR recivers there's no differential as the two motors will drive the wheels independently hope you like it and mainly i hope it will come good Quote
Nico van Duin Posted June 27, 2014 Posted June 27, 2014 (edited) That looks realy great so far! And with a 2:1 gear ratio it would be very fast! Edited June 27, 2014 by Nico van Duin Quote
D3K Posted June 27, 2014 Posted June 27, 2014 Looking forward to seeing some progress, you make really great models! And the Stratos is one of my favourite cars! Quote
gsia17 Posted June 27, 2014 Posted June 27, 2014 (edited) You see my last video on youtube. I use only one Buggy motor with ratio 1:1 so you can put a higher increase by two motors. You will run a lot Edited June 27, 2014 by gsia17 Quote
piterx Posted June 27, 2014 Author Posted June 27, 2014 really? that's awesome! can't wait to see your saxo :) Quote
piterx Posted June 27, 2014 Author Posted June 27, 2014 So here's the front axle... i wanted to add kingpin inclination but this way is simpler the steering rack is upside down so i can attach it directly to the servo the second lipo battery will be placed right after the steering rack so there's space for interiors now i need to connect the front and rear axle and the chassis is done ^-^ Quote
rm8 Posted June 27, 2014 Posted June 27, 2014 (edited) So here's the front axle... i wanted to add kingpin inclination but this way is simpler the steering rack is upside down so i can attach it directly to the servo the second lipo battery will be placed right after the steering rack so there's space for interiors now i need to connect the front and rear axle and the chassis is done ^-^ The problem of this steering system is visible to me: servo rotates 90 degrees. Your steering axle will rotate only 45 degrees each direction. Servo will be stalled in the 45 degrees position, and after that motor will try to rotate axle till 90 deg increasing rotating power and eating larger amount of electricity. At the end servo will eat so much current in cooperation with buggy motor at the second channel, so receiver turn the protection on. Another problem I met in the same configuration - servo can deform front suspension while increasing strength of rotation, so it suspension arms cant work free with turned wheels. Edited June 27, 2014 by rm8 Quote
rm8 Posted June 27, 2014 Posted June 27, 2014 (edited) not if i gear the servo down to 1:2 :P Ok, thats good. But it impossible to save center position of wheels using 2 gears Edited June 27, 2014 by rm8 Quote
piterx Posted June 27, 2014 Author Posted June 27, 2014 i'm not going to use only two gears :P this is the gearing i will use Quote
vmln8r Posted June 27, 2014 Posted June 27, 2014 (edited) Why not a single link, instead of all those gears? Less backlash and more reliable. I did it here (using 9398 parts): Edited June 27, 2014 by VMLN8R Quote
piterx Posted June 27, 2014 Author Posted June 27, 2014 well i have to keep in mind the body and the interiors so the only option i have is this now i need to tidy everything up and strenghten it Quote
Essge Posted June 27, 2014 Posted June 27, 2014 This looks very good. Now you only need to reinforce the chassis and make a fine body ;) Off-topic: Is your computer an Asus N73J with 18.4" Full HD screen and it has a extra space for a 3.5" intern HDD? Quote
Madoca 1977 Posted June 27, 2014 Posted June 27, 2014 i'm not going to use only two gears :P this is the gearing i will use You don't need second (red) 8t gear. Just rotate 20t bevel and 8t gear by 45 degrees. My supercar and new MOC use this. Quote
piterx Posted June 28, 2014 Author Posted June 28, 2014 thankk you madoca :) i've found a smaller way to make it btw...i've tried having a ride with this chassis and i can say it's probably the most uncontrollable beast i've ever made lol as i thought at the beginning it's overpowered and i absolutely love it hahah need to tidy up the atachment between the chassis and the front axle but i will do it tomorrow :) Quote
anton1678 Posted June 28, 2014 Posted June 28, 2014 thankk you madoca :) i've found a smaller way to make it btw...i've tried having a ride with this chassis and i can say it's probably the most uncontrollable beast i've ever made lol as i thought at the beginning it's overpowered and i absolutely love it hahah need to tidy up the atachment between the chassis and the front axle but i will do it tomorrow :) Try making the IR reciever symmetrical to your model, on the back, not on top on the right. Make it in the middle, or it looks odd Quote
legomuppet9 Posted June 28, 2014 Posted June 28, 2014 (edited) Try making the IR reciever symmetrical to your model, on the back, not on top on the right. Make it in the middle, or it looks odd If it's in the middle there's no space for the interior though? That chassis looks like a lot of fun, I'm still looking for cheap RC motors Edited June 28, 2014 by legomuppet9 Quote
piterx Posted June 28, 2014 Author Posted June 28, 2014 no but that was only a try i just mounted the recivers roughly to test it :) they will be in the middle on top of the rc motors and the reciver will be included in the roof Quote
piterx Posted June 28, 2014 Author Posted June 28, 2014 (edited) so the chassis seems to be finally ready...maybe i'll do minor changes here and there whn i'll start the body :) the red plates on top of the recivers will be a part of the roof...so that's gonna be the maximum height of the model hope you like it oh btw...its performances are insane XD proportions check Edited June 28, 2014 by piterx Quote
Hrafn Posted June 28, 2014 Posted June 28, 2014 This thing is a beast! I'm impressed with how well you've packed the motors, batteries, and steering in there. Looking forward to seeing your continued progress! How are you going to do all the curves in the bodywork? Flex axles, or liftarms, or brick-built? Quote
piterx Posted June 28, 2014 Author Posted June 28, 2014 thank you man :) i will use flex axles for the body so i can keep it light and tidy :) in the meanwhile im starting modelling the back of it...obviously it's not going to be the final look lol i need to find a way to make the whole rear part openable, i guess it has to be one single piece with rear fenders and rear bumper Quote
Zerobricks Posted June 28, 2014 Posted June 28, 2014 Ok, thats good. But it impossible to save center position of wheels using 2 gears You can make a totally centered position using a 12 and a24 tooth gears on an L shaped beam. Quote
gsia17 Posted June 28, 2014 Posted June 28, 2014 May be you want to show us a video with this chassis... It must be fast and fun Quote
piterx Posted June 29, 2014 Author Posted June 29, 2014 (edited) here it is :) maybe two rc motors are a little bit too much XD Edited June 29, 2014 by piterx Quote
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