4.8V racer chassis…?

This topic has 36 replies, 11 voices, and was last updated 21 years, 7 months ago by jamiekulhanek.

Viewing 36 reply threads

Author

Posts
- February 18, 2004 at 11:24 pm #12036
  ph2t
  Participant
  Posts: 2088
  :smiley2:
  
  ph2t.
  
  Edited by – ph2t on 18 February 2004 18:24:53
- February 18, 2004 at 11:34 pm #49730
  leonli17
  Participant
  Posts: 602
  Nice…but really destructive to the car under the speed it will travel(like nearly 40km/h) i bet. U need carbon fibre under there.
  And if u can find, use the 1/4 AAA cells. Lighter and take less space.
  I think u’ll need a Adaptor Socket and Plugs to charge the batteries, don’t think u wanna spend a long time on making a charging place for this car.
  Just like betty.k’s monster.
- February 18, 2004 at 11:39 pm #49731
  ph2t
  Participant
  Posts: 2088
  early days still dude. I will eventually cover the bottom with some thin plastic and epoxy it on…gotta make sure it runs first 🙂
  
  do you know where I could source the proper 1/4AAA batts?
  
  ph2t.
- February 18, 2004 at 11:42 pm #49732
  micro_Amps
  Participant
  Posts: 1290
  Pics not working for some reason Ph2t.
  There used to be a local supplier of 1/4AAA 70mAH cells, but unfortunately they dont carry them any more.
  :)uA
- February 18, 2004 at 11:42 pm #49733
  z-beam
  Participant
  Posts: 2265
  you could fit two full aaa cells in there!
- February 18, 2004 at 11:45 pm #49734
  ph2t
  Participant
  Posts: 2088
  micro: hmm, leon and zbeam get them, strange…..
  
  z: just a couple of mm short of sitting flat, lol, I checked. sad @#$%..
  
  ph2t.
- February 19, 2004 at 1:01 am #49736
  merc-blue
  Participant
  Posts: 1547
  i would suggest the cells from cordless phones.. there good for that sorta application.. looks good. i love them rims wat are they from?
- February 19, 2004 at 1:20 am #49737
  brendan
  Participant
  Posts: 377
  u stole my idea! lol, my idea was a little differnt. In my idea i was gonna take the front steering out have no steering and get them little nails with the 0 at the end screw them under the car and make a drag strip an tie a peice of fishing line to one end to the other then hook the car up to that so it will go straight. the car would be a belt driven 4wd (the belt being a small rubber band or something) have one motor on the back and one motor in the middle and a little gear were the rubber band can hook on to the motor and the other to the front axel with the other gear on. and i would stretch it so i could fit 4 cells in 3 cells for and a boost cell, the front axel would fit in just like the rear axel but u would clip it in obove the car. The way i would make the axel fit is drill little holes thru the bit at the front then get a hobby knife and cut the top of the hole off like the rear axel i would make the top about 2 mm thinner than the auctual hole so the axel wouldnt come out!
  i hope that makes sense:p
  
  Edited by – brendan123 on 18 February 2004 20:24:11
- February 19, 2004 at 1:28 am #49738
  ph2t
  Participant
  Posts: 2088
  they’re zipzap rims…
- February 19, 2004 at 2:42 am #49739
  betty.k
  Participant
  Posts: 2487
  oooh, dat’s nasty! i like the mobile phone batt idea but then it’s only gonna be 3.6V, darn it! maybe use 2 and go for 7.2V!!:p:8ball:
- February 19, 2004 at 2:43 am #49740
  micro_Amps
  Participant
  Posts: 1290
  Actually I did one of these a while back for Hachi-ryoku (think thats how you spell it), the car flew, but it was kinda heavy.
  Havent seen him around for a while though.
  I got the pics now too Ph2t.
  :)uA
- February 19, 2004 at 5:29 am #49752
  leonli17
  Participant
  Posts: 602
  I got the 1/4 AAA from an Enertec i broken up(coz just want to use the batts).
  But I really want to know a proper source of them. Anyone know where to get them please post in this topic. I’m sure most people wanna know.
- February 19, 2004 at 6:22 am #49754
  z-beam
  Participant
  Posts: 2265
  battery world in the phone book, you need to order 10 to get them for a good price… nimh’s are what i got. and make sure you bs em about being able to get them for $5 apeice somewhere else, they are quick to undersell! :smiley2:
- February 22, 2004 at 5:08 am #49774
  Racer9
  Participant
  Posts: 339
  Awesome! They have run these babies on up to seven cells over on Tiny R/C. They had to lock the steering though! What is the chassis made of? Looks like wood.
- February 24, 2004 at 4:41 pm #49790
  jamiekulhanek
  Participant
  Posts: 2563
  4 cell racer chassis = buy a mini Z :):)
- February 24, 2004 at 4:52 pm #49795
  ph2t
  Participant
  Posts: 2088
  mini Z = no $$
- February 24, 2004 at 5:19 pm #49798
  jamiekulhanek
  Participant
  Posts: 2563
  Getting cheap as our dollar is high, $110 aud + 30 postage = $140
  
  Question…PEBCASI, does that mean Problem Exists Between Controller And…..something???
  
  Edited by – jamiekulhanek on 24 February 2004 12:21:36
- February 24, 2004 at 7:15 pm #49802
  ph2t
  Participant
  Posts: 2088
  close…
  
  Chair and Soldering iron.
  
  ph2t.
- February 24, 2004 at 7:52 pm #49803
  betty.k
  Participant
  Posts: 2487
  who’s a lucky boy!!:p i got to feel the power today. i’d never heard a motor and gearset beg for mercy before today!:dead:
  
  “help meee! heeelp meeeeee!!”:8ball:
- February 25, 2004 at 1:56 am #49808
  jamiekulhanek
  Participant
  Posts: 2563
  Ah good one ph2t.
- February 25, 2004 at 2:07 am #49810
  z-beam
  Participant
  Posts: 2265
  are you talkin mini-z betty?
- February 25, 2004 at 2:40 am #49811
  ph2t
  Participant
  Posts: 2088
  na man, he’s talkin’ about this:
  
  ph2t.
- February 25, 2004 at 3:07 am #49813
  brendan
  Participant
  Posts: 377
  nice! looks like it would haul some ass. cant wait to see a vid
- February 25, 2004 at 3:39 am #49814
  jamiekulhanek
  Participant
  Posts: 2563
  I guess the looooooong wheelbase makes handling better???
- February 25, 2004 at 3:48 am #49815
  ph2t
  Participant
  Posts: 2088
  yes it does, it’s the best out of my three monsters to date. The bastard still flips though…..
  
  ph2t.
- February 25, 2004 at 4:52 am #49817
  jamiekulhanek
  Participant
  Posts: 2563
  hmmm maybe you better stick some hydraulics in her
- February 25, 2004 at 5:47 am #49818
  Pork_Hunt
  Participant
  Posts: 349
  GOOD LORD MAN!!!! That monstrosity makes my real car tremble in fear.
- February 27, 2004 at 4:54 pm #49836
  HFi
  Participant
  Posts: 28
  wow… impressive!
  such power won’t “blow” the motor??
  You have to show us a vid 😀
- February 27, 2004 at 5:51 pm #49837
  ph2t
  Participant
  Posts: 2088
  See the “let loose some juice thread in BCG Discussion”
  
  cheers,
  
  ph2t.
- February 29, 2004 at 8:11 am #49895
  jamiekulhanek
  Participant
  Posts: 2563
  well worth a look, some of the cars even get some air off a lil drain ditch thingamybob
- March 4, 2004 at 3:14 pm #49945
  ph2t
  Participant
  Posts: 2088
  OK, manged to score my bro’s camera so here are some better shots of this beast…
  
  Current specs:
  
  pan style flat chassis
  BCG steering assembly
  BCG motor mount
  4 x 1.2V/50mAh NiCd
  49 Mhz clone PCB with TriStack(tm) FET’s
  Monster tyres
  Triple spring steering arm
  8.96:1 Gears
  my verision of the Hog’s JBWled axle trick
  guitar string antenna
  custom “full flare” heatsink, lol
  TinyRC R-Spec motor
  
  Here’s some clearer shots of the fets. Notice the layout of fets on this clone PCB is not like all the regular pcb’s. One thing though, the higher youstack the easier it gets as the fets start to clear the PCB.
  
  This is my version of the axle slip fix made famous by Hog and his bloody JBWeld. Basically I get a piece of plastic and wedge it into the groove leaving enough space for the axle to turn freely. Once I’m happy I then dab a drop of super glue on the top and make sure it joins the sorrounding chassis plastic. I guess this way I can still remove the plastic later if I ever need to replace/repair the axles.
  
  Now that I’m running 4.8V though the motor AND I have upgraded the current handling capacity of the H-Bridge (the fet triple stack we’re talkin’ here) the motor runs extremely hot! over 60 degrees C!. I’ve actually seared the end of a finger because I picked up the car by the heatsink after a solid 3+ minute run. So I made a custom heatsink from some clone heatsinks I had lying around. I gotta say it helps. The more you keep your motors cool, the longer they last.
  
  If only I had made this heatsink earlier my precious (and only) EM38 Vanquish wouldn’t of died…… 🙁 .
  
  ph2t.
- March 4, 2004 at 4:36 pm #49946
  betty.k
  Participant
  Posts: 2487
  the vanquish died!?? NNNOOOOOOOOOOOOOOO!!!!:shock::8ball:
- March 4, 2004 at 6:51 pm #49948
  jamiekulhanek
  Participant
  Posts: 2563
  Next mod for this: DUAL motors :p
- March 4, 2004 at 7:03 pm #49950
  ph2t
  Participant
  Posts: 2088
  workin’ on it….
  
  http://www.wegotu.com/forums/view_topic.php?id=958&forum_id=4
  
  ph2t.
- March 4, 2004 at 7:12 pm #49951
  jamiekulhanek
  Participant
  Posts: 2563
  CLEAR CHASSIS??? WHEERE??? HOW MUCH???
  
  Nice mod too.
- March 4, 2004 at 7:18 pm #49952
  betty.k
  Participant
  Posts: 2487
  hey jamie, http://www.toyeast.com/subcatlist2.asp?catid=1198
  clear chassis come with most perfection cars now:8ball:
- March 4, 2004 at 7:47 pm #49955
  jamiekulhanek
  Participant
  Posts: 2563
  niiiiiccccceeee killer prices too!
Author

Posts