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  1. #201
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    Just give'em each an allen wrench and put them to work!! lefty losey righty tighty! You'll be done in no time, provided you have all the parts you need.

  2. #202
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    My 2 year old does hang around the work bench (aka dining room table) waiting for me to drop something for her to find when I do get a chance to work on them. She's pretty good at it too... she found all the grain-of-salt sized balls out of an exploded ball bearing for me once. lol
    Whatever it is I just said... I could be wrong.

  3. #203
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    Great build Jimmie!
    Keep up the good work

    Thanks for your help

  4. #204
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    Radio Update

    The screen is still wacky... but I did some other modifications to it:


    I used some "garage door" wire... it is the stuff they send for switches and sensors with garage door kits. It is very formable and retains the shape... this also makes it brittle with too much bending at the same point.


    This was just a little slot for the power wires... had to knock out a chunk for the other wires.


    Here you can see that they fit where I knocked the chunk out as well as the slot I cut to the left of the picture for the wires to be held in place.


    Drilled four little tiny holes spaced so that the pins of a header can poke through.


    Here you can see the pins poking through after they had been super glued and soldered into place. You can also see that the springs are gone for the AA batteries and that I have soldered a Futaba J plug to the power wires for the radio so that it can be fed by a 3S LiPo.


    While I was in there I did some poking around and found that the steering shaft is supported by a ball bearing, unlike the GT3B.



    I had hoped to do some shots of the programming sequence, but with the screen not working as it should it would be pointless. Hopefully I will remember to do this when I get another GT3B to put the main circuit board in this radio.

    It may be a while before I get to doing much else on the Summit... I have wrapped myself up into a LiPo discharger project.
    Whatever it is I just said... I could be wrong.

  5. #205
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    Very nice, exactly the kind of wiring ingenuity I love to see in projects!!

    Great stuff Jimmie, I love the cleanliness of this setup! =)

  6. #206
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    Thanks Krall!
    Whatever it is I just said... I could be wrong.

  7. #207
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    I was able to get my battery mount made:







    Clears everything, but is as low as possible... without machining relief for the shift linkage. lol
    Whatever it is I just said... I could be wrong.

  8. #208
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    Wow, so low profile too! Looks great, I'm surprised there was that much room beside the servo!?

  9. #209
    RC Turnbuckle Jr. jamann's Avatar
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    Looks great clean tidy and sharp
    Great work.


    Sent using lipo power
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  10. #210
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    Nice to see you use that kind of bracket for your battery, am contemplating the same thing for the BEC and another switch but was not to sure about stability. Now will give it a shot.
    Nice and clean, second time around is always better than the first, but like an old friend of mine told me "Learning can be expensive" Why I leave things like Tx tinkering to the soldering experts Again great work and clean set up.

  11. #211
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    Thanks for the compliments, fellas!
    I was wondering how it would turn out...
    I was working on it with a 102° temp and doped up on meds. lol

    I was debating putting 4 screws in it instead of 2... but I decided on the two thinking it really isn't doing a whole lot. As it turns out, 2 is plenty. I can pick up and manipulate the heavy beast by that bar and it barely budges. Just be sure to have it tight down to the chassis along side of the servo! That adds to the rigidity. I probably could go a little lower, but I wanted the top to be flush with the transmission as the batter hangs over each side a little.

    Here are the measurements... FROM MEMORY - so they could be off a bit.
    The legs are 2" from the bottom of the cross section to the end and 5 9/16" from inside bend to inside bend on the cross section. The material is 1 x 1/8" aluminum flat stock... could have gone with 1/16" but they did not have the 1" wide 1/16" in stock.
    Whatever it is I just said... I could be wrong.

  12. #212
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    Thanks for the measurements Jimmie but already have one made up that rests on the trany and is wider, but made of 1/4 plastic, as all the alum. I have on hand is not wide enough. Will use my plastic one and if it breaks(joints are really reinforced) will go to alum, not going to be hold much weight anyway. But vibration might get to the plastic.

  13. #213
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    I like the beefiness of the 1/8 though, I have 12 feet of it myself.

    I MAY just be doing that very same brace :P

  14. #214
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    Jimmie pretty good on the measurements from memory, those are spot on to the plastic one I have made. Also found some 3/16" x 11/2" Alum. stock going to try. Big problem I have using 7980 servos leaves little room between the servo and bulk head on the right side, why started off with the plastic.

  15. #215
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    You know the funny thing about "drowsy" meds?
    They keep me awake.
    lol

    Here is the finished project from tonight:

    Top lights are functional!

    Here is how I did it:

    Brass washers with a wire soldered on the side edge. (these will be glued down with shoe goo)


    Rear body tower drilled for wire routing. Notice the relief carved for the soldered wire...


    All soldered up and wires routed.


    I did have to shave a little off from the back roll cage cross over bar on the bottom where it touches the body. The brass washers I used were a hair too thick for the body clips to slide into place.
    Whatever it is I just said... I could be wrong.

  16. #216
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    Must have missed something, why all the trouble with the washers? Whats the special switching involved?

  17. #217
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    This way there are no wires to attach to the body everytime he puts it on! The washers act as contacts between the wires on the chassis and the wires on the body. But there is so little room between the top of the body and where you put the pins (ran in to the same issue on my Jeep body build) that he had to modify some shtuuff.

    Love the mods dude!

  18. #218
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    I love that it is finally put together enough to run it!!
    I think that is the only part I don't like about modding... kinda hard to drive a pile of parts.
    Whatever it is I just said... I could be wrong.

  19. #219
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    I was able to run a set of packs down...
    and I did not break anything!!


    The motor was a bit hot (162°F), so I am going to be putting the fan back on the heat sink. The ESC was at ambient temperature, so it really doesn't need the motor's fan... I think the ESC BEC is what caused most of the ESC's heat. lol
    She is still able to pull a wheelie with that big 5000mah Rx pack above the front shocks, but I think I need to crank down on the springs a little, she sags in the front now. But, I think the weight up there actually helped it crawl a little better... I know it climbs a hill better than it used to as I was able to get up one I usually cannot get the Summit to the top on; one that I myself cannot get up at all.

    I was also able to prove that my Rx box is at least rain resistant as it was raining most of my trip out.
    Well, so far so good anyway.


    The only thing I wish I could change right now is the LVC on the ESC...
    I think 3.6v/cell is a bit high. At least that is when my 50% power reduction kicked in.
    Last edited by Jimmie Neutron; 09-23-2012 at 06:23 PM.
    Whatever it is I just said... I could be wrong.

  20. #220
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    nice idea what about putting a felt or foam washer under the chassis washers to help maintain constant contact and prevent arcing. Just my thoughts but I think your idea is an ingenious solution to a bad dilemma.

  21. #221
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    I don't see a need for any washers besides the brass conductive washers on the back body tower... it is tight enough I highly doubt there is any arcing. I had to shave the back roll bar cross section where the posts come up through to get it go to down enough to get a body clip in.
    Besides; if they arc, they arc. Those contacts are only powering LED's.

    This idea of mine was not original... but I don't remember where I got it from either. lol
    I know this will stop me from ripping the forgotten wire out of the LED's or the power source... cause I can guarantee you it would have happend if I had another plug to deal with.
    Last edited by Jimmie Neutron; 09-23-2012 at 06:15 PM.
    Whatever it is I just said... I could be wrong.

  22. #222
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    Quote Originally Posted by Edstoys View Post
    Must have missed something, why all the trouble with the washers? Whats the special switching involved?
    I did not catch that last question until now...
    What switching where you referring to??
    Whatever it is I just said... I could be wrong.

  23. #223
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    Quote Originally Posted by Jimmie Neutron View Post
    I did not catch that last question until now...
    What switching where you referring to??
    Was referring to the washers on the body, but Krall answered it right below my post. Still not quite sure how it works tho, guess the washers take the place of the plug. Run the wires to the washers and light wires to area so when body is put on bingo lights. If that's right simple and ingenious who ever thought of it.

  24. #224
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    Yes, the washers take place of a plug.... so when I attach the body, they make a connection between the source and the LED's.
    Whatever it is I just said... I could be wrong.

  25. #225
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    I brought up the washer idea,but I got the idea from noir 522 he came up with it from what I remember,some time ago.


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  26. #226
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    I remember reading a thread on the washer idea back when I read all the threads in this section of the forum, when I was trying to decide if the Summit was the right RC for me. There were a few pictures too, if I remember correctly.

    Good to know where the credit for the idea goes to.
    Whatever it is I just said... I could be wrong.

  27. #227
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    I was able to run it again...
    still haven't broke anything!
    This is amazing!!

    My motor sure does stink though... I hope it is not on its way out; I haven't got the cash to replace it right now.
    Whatever it is I just said... I could be wrong.

  28. #228
    RC Turnbuckle Jr. noir 522's Avatar
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    Quote Originally Posted by jamann View Post
    I brought up the washer idea,but I got the idea from noir 522 he came up with it from what I remember,some time ago.


    Sent using lipo power
    but Jimmies is WAY cleaner.
    MAN, Use Common Sense
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  29. #229
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    That is how I roll.
    Whatever it is I just said... I could be wrong.

  30. #230
    RC Turnbuckle Jr. jamann's Avatar
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    Everything Jimmie has done has been cleaner....kinda bumming me out...lol
    It is enjoyable to see what can be done



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  31. #231
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    I was able to get some time behind a controller today!
    A friends kid had to come up with a science project and he chose to show the effects of pinion changes on speed. We used my Summit because it has more data points due to having high and low gear.

    Here is the info we collected:
    My Summit weighs roughly 15 pounds ready to drive.
    Top speed with stock gearing (14/68) in high is 17mph.
    Top speed with stock gearing (14/68) in low is 7mph.
    Top speed in high with a 17 tooth pinion is 20mph.
    Top speed in low with a 17 tooth pinion is 7mph.
    Top speed in high with a 21 tooth pinion is 23mph.
    Top speed in low with a 21 tooth pinion is 8mph.
    All runs where performed with batteries that read 8.3v each.
    We also found out that the 775 does NOT like the 21 tooth pinion... she was smelly after that run.

    EDIT:
    Does anyone have information on transmission gear ratios for high and low?
    Possibly differential ratio as well?
    Thanks in advance!
    Whatever it is I just said... I could be wrong.

  32. #232
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    The tranny is 25:1 and 70:1 according to a post I saw on this forum from 2009.

    Cool stuff helping the fellow out, scary with the 21t!


    ** another quote:

    Unprecedented Versatility With T-Lock differentials and High-Low Transmission
    Only Summit™ gives you the ability to lock the differentials and shift from low to high gear right from the transmitter. No need to break from the action to swap gears or install locking parts. Tear up the trail in "high range" with a 25:1 ratio for dirt-slinging speed. When the terrain turns technical, drop it into "low range" for a 70:1 ratio and unreal climbing torque. For the ultimate in climbing traction, flip the T-Lock switch to lock the front differential. Need even more grip? Activate the rear T-Lock diff for fully-loaded 4WD power no matter which tire is gripping or slipping.
    Last edited by krallopian; 11-18-2012 at 03:23 AM.

  33. #233
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    Thanks Krall!
    I wasn't too concerned with the damages that could have been caused... I want a DeWALT anyway. lol
    Whatever it is I just said... I could be wrong.

  34. #234
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    Quote Originally Posted by Jimmie Neutron View Post
    Had some time this morning...


    Maybe now I won't loose as many body clips.
    Lol that made me laugh, I always drop them and have to scurry around to find them.

  35. #235
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    I loose them when I roll it...
    Whatever it is I just said... I could be wrong.

  36. #236
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    nice work jimmie!

  37. #237
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    Thanks!
    Whatever it is I just said... I could be wrong.

  38. #238
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    Good stuff man. As soon as the stock motor goes, grab a dewalt
    What's a coffee if it aint Irish

  39. #239
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    Hahaha listen to you! "As SOON" as if it is CERTAIN to happen. :P

    IF it happens, and you feel you need to upgrade, BRUSHLESS man, just do it! Whenever I think of SUMMIT and BRUSHLESS I think of Jimmie Neutron saying something like, "yeah but then there are people who try to go brushless with a Summit, that's crazy and I'd never do it... probably.. well it's cool but I don't recommend it" typa feeling hahah. So yeah.

  40. #240
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    Oh, it is certain... it is giving off that special kind of stink. lol

    DeWALT will be my first step as I am saving for another RC and the DeWALT replacement is cheaper than going brushless. Hopefully by the time the DeWALT looses its power appeal affordable waterproof sensored systems have come about and proven themselves.
    Whatever it is I just said... I could be wrong.

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