Hi guys,

i have been thinking of building an R/C RWD truck for some time now and was wondering how may are into R/C car building n stuff apart from planes  

sahil

Hi sahil,

Do you think that you can use Same radio system (used in rc plane) will be enough for Rc cars?

yes one can but one also has to note/see that there are no RC fliers on the same band or frequency!    which might spell disaster for the plane flier  apart from this i don't see any reason why RC plane transmitter cannot be used for RC cars in fact i'm going to do that! use my 10ch radio for cars 

sahil

Sahil - What do you mean by "building" ?

Quote from: sahilkit on April 12, 2010, 08:23:05 PM
y apart from this i don't see any reason why RC plane transmitter cannot be used for RC cars

Have you seen the special type of Tx used for RC cars??? What is the difference If we use the Tx of RC plane instead of it??? - Asking to know the difference...

generally car transmitters are of two types pistol n stick and i don't think there is much difference may be one or two features! and yes i have used a RC car transmitter (stick n pistol) but not the high end super expensive radios 

QuoteSahil - What do you mean by "building" ?

you know the stuff like making the chassis, transmission, universal joints, axle, suspension parts etc etc !

QuoteHave you seen the special type of Tx used for RC cars??? What is the difference If we use the Tx of RC plane instead of it???

apart from the frequency one can use the plane tx for basic control like forward,reverse, left right, servo EPA, servo reversing, expo n such stuff, lights on off, accessories control etc !

may be the Pro RC cars guys can answer your question more correctly

sahil

Look up the rc18 series... They have a factory team kit (lotta upgraded parts)
They are 4wd... Much better than 2wd...

Quote from: sahilkit on April 12, 2010, 08:54:41 PM

QuoteSahil - What do you mean by "building" ?

you know the stuff like making the chassis, transmission, universal joints, axle, suspension parts etc etc !

I have to ask again   "Making" ?  Do you mean like actually machining the parts ? Or scavenging suitable parts from your environment ?  Or just build from a commercially available kit ?

you generally cant use a plane tx for car use as the plane tx does not have
a self centering left stick (throttle)

i.e airplane engines / motors are setup only to run in forward - so the
throttle stick travel from endpoint to endpoint controls only the speed from
dead stop/idle to full speed in one direction.

car tx throttle on the other hand (either wheel or stick) are spring loaded
to return to neutral - so neutral is dead stop/idle - push forward for proportional
forward speed and pull backward for proportional reverse speed.

Actually it is not a huge issue on "plane" radios with ratcheted throttles (as opposed to heli ones which are smooth).  Not as convenient as the spring loaded ones or the pistol grip ones, but usable.  My brother uses an old/simple Esky 4ch radio (which was part of an ARF kit) that way quite often, although he has a pistol grip one (guess it is about buying additional receivers).

i'm planing on using the elevator/aileron sticks on the radio Mode2

yes anwar making as may parts from scratch as possible right now i have wheels,bevel gear and a body rest i will have to build !

anwar this is what i was referring to (building)

And this is what I was hoping to see

Quote from: saikat on April 13, 2010, 07:35:06 AM
car tx throttle on the other hand (either wheel or stick) are spring loaded
to return to neutral - so neutral is dead stop/idle - push forward for proportional
forward speed and pull backward for proportional reverse speed.

Sahil,

You could make a circuit to do that on the receiver throttle channel. A simple micro could do the job. I am sure you know what I am saying. On the mechanical centering you could change the spring/ratchet to the throttle. A quick and dirty way is to hook the throttle to the elevator channel and use the throttle right handed. If you still need left hand throttle hold the transmitter upside down  . 2.4GHz antenna is small anyway and would not poke you,.

BTW, all the best on the build. Do keep us posted.

-Ismail

QuoteOn the mechanical centering you could change the spring/ratchet to the throttle. A quick and dirty way is to hook the throttle to the elevator channel and use the throttle right handed.

or i can just use the extra hard spring set i got with the radio 

QuoteIf you still need left hand throttle hold the transmitter upside down    . 2.4GHz antenna is small anyway and would not poke you,.

update............... still loads of stuff to figure out n build  i wish i had bought a lathe n mill !

I'm also lookin to make one myself..Can u explain ur previous stages..

That  was  going  good  sahilkit  ..... 
   what  came  out  next ........                
           wish  to  know  all your  work  on this ........    this  is  real  intresting ...   

great topic...