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  1. #1
    RC Turnbuckle Jr. MITCH316's Avatar
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    DeWalt 14.4V motor?

    Brushed motors are new to me as I have been running brushless with my E-Revo. I plan on running a DeWalt 14.4V motor with the EVX-2 ESC on 4S 40C 7600mah Lipos.

    I see the new EVX-2 come with low voltage cut-off, do you still need an external LVC with this ESC?
    Do you need external capacitors fitted to the motor? I think I read some where before that this is not necessary, I could be wrong.

    I've just ordered and paid for a 14.4V DeWalt motor from KS Designs without external capacitors...
    Rock n Rolla !

  2. #2
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    No external LVA needed.
    No caps needed for the motor as long as everyone around you and yourself is not running AM radios.

    The EVX2 will not take a 4S LiPo.
    It will take two 2S LiPo's...
    Whatever it is I just said... I could be wrong.

  3. #3
    RC Turnbuckle Jr. MITCH316's Avatar
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    Quote Originally Posted by Jimmie Neutron View Post
    No external LVA needed.
    No caps needed for the motor as long as everyone around you and yourself is not running AM radios.

    The EVX2 will not take a 4S LiPo.
    It will take two 2S LiPo's...
    Thanks mate...you've been a big help. I should say I plan on running 2 x 2s 40c 7600mah Lipos. What I don't know is does the ESC run in series or parallel?

    Sorry mate, I am learning about brushed motrs and the EVX2 as I go along...
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  4. #4
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    The EVX2 runs them internally in series... but it cannot handle a single 4S. At least that is my understanding.... I think you would have to run it in NiMh mode and have a jumper to get it to work?? Not too sure about that even. I have ran my EVX2 on 2S with a jumper... slows things down even more for the little ones.

    I kinda figured you were going to run twin 2S's... but when someone that doesn't realize that reads this thread, the idea of running two 4S batteries in parallel come to mind... and there is no benefit.
    Whatever it is I just said... I could be wrong.

  5. #5
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    You're gonna like the Dewalt. IMO it really complements the Summit
    Last edited by Mayberry Kid; 08-21-2012 at 09:59 AM.
    The Kid

    14.4 Dewalt & Misc. el-cheapo mods

  6. #6
    RC Turnbuckle Jr. MITCH316's Avatar
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    Quote Originally Posted by Jimmie Neutron View Post
    The EVX2 runs them internally in series... but it cannot handle a single 4S. At least that is my understanding.... I think you would have to run it in NiMh mode and have a jumper to get it to work?? Not too sure about that even. I have ran my EVX2 on 2S with a jumper... slows things down even more for the little ones.

    I kinda figured you were going to run twin 2S's... but when someone that doesn't realize that reads this thread, the idea of running two 4S batteries in parallel come to mind... and there is no benefit.
    No worries mate...I think I have been posting on the E-Revo forums to long. You will be hearing a lot more from me when I start my build; as I get stuck and need help. Once again thanks for the advice

    Quote Originally Posted by Mayberry Kid View Post
    You're gonna like the Dewalt. IMO it really complements the Summit
    I am looking forward to it. I love my E-Revo but I am looking for something different too. Something that is not as brutal for the kids to have a go with and have some fun...
    Last edited by craig.mitch316; 08-21-2012 at 10:09 AM. Reason: I can't spell
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  7. #7
    Marshal ksb51rl's Avatar
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    Quote Originally Posted by Jimmie Neutron View Post
    The EVX2 runs them internally in series... but it cannot handle a single 4S. At least that is my understanding.... I think you would have to run it in NiMh mode and have a jumper to get it to work?? Not too sure about that even. I have ran my EVX2 on 2S with a jumper... slows things down even more for the little ones.

    I kinda figured you were going to run twin 2S's... but when someone that doesn't realize that reads this thread, the idea of running two 4S batteries in parallel come to mind... and there is no benefit.
    Indeed, especially because the internal BEC will likely puff the magic smoke if you connect a 4S pack to that side.

    If you have an LVA, run it anyway. You can use it to get a feel for the voltage drop your packs are experiencing.
    Alt-248 on the number pad =

  8. #8
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    Quote Originally Posted by craig.mitch316 View Post
    I am looking forward to it. I love my E-Revo but I am looking for something different too. Something that is not as brutal for the kids to have a go with and have some fun...
    The Summit in High gear with a 18T pinion and the Dewalt is a nice "step" down in speed from the ERBE (on 4s,5s or 6s) and then another "2 steps" down if you drop it into Low gear.

    I'm letting my 5 YO daughter play with my Summit in Low gear without too much worry, High gear she still gets into trouble and i wont let her touch the ERBE, even on 4s its just too fast.

  9. #9
    RC Turnbuckle Jr. MITCH316's Avatar
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    Quote Originally Posted by Joe Camel View Post
    The Summit in High gear with a 18T pinion and the Dewalt is a nice "step" down in speed from the ERBE (on 4s,5s or 6s) and then another "2 steps" down if you drop it into Low gear.

    I'm letting my 5 YO daughter play with my Summit in Low gear without too much worry, High gear she still gets into trouble and i wont let her touch the ERBE, even on 4s its just too fast.
    Thanks...theres the answer right their. Let the kids use it in low gear.
    Rock n Rolla !

  10. #10
    RC Turnbuckle Jr. MITCH316's Avatar
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    Quote Originally Posted by ksb51rl View Post
    If you have an LVA, run it anyway. You can use it to get a feel for the voltage drop your packs are experiencing.
    I don't have an LVA...I have never seen one either and not even sure how they work. Where would you connect an LVA, to the ESC leads?
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  11. #11
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    LVA's go on the BEC battery balance taps... there is a decent write up in the Summit FAQ.

    Here are a few links to LVA's:
    http://www.ebay.com/itm/2in1-RC-Lipo...item2ebe90a8f8

    http://www.ebay.com/itm/2-in1-Lipo-B...item23197bdc8d
    Whatever it is I just said... I could be wrong.

  12. #12
    RC Turnbuckle Jr. MITCH316's Avatar
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    Quote Originally Posted by Jimmie Neutron View Post
    LVA's go on the BEC battery balance taps... there is a decent write up in the Summit FAQ.

    Here are a few links to LVA's:
    http://www.ebay.com/itm/2in1-RC-Lipo...item2ebe90a8f8

    http://www.ebay.com/itm/2-in1-Lipo-B...item23197bdc8d
    Got it...much clearer to me now. Out of curiosity can the LVC on the EVX2 be set like the MAMBA MONSTER on the E-Revo. On the E-Revo I've set my LVC to 3.4V.
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  13. #13
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    Quote Originally Posted by craig.mitch316 View Post
    Got it...much clearer to me now. Out of curiosity can the LVC on the EVX2 be set like the MAMBA MONSTER on the E-Revo. On the E-Revo I've set my LVC to 3.4V.
    No, unfortunately you can not adjust the LVD of the EVX2.
    Tekin powered Summit

  14. #14
    RC Turnbuckle Jr. MITCH316's Avatar
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    What is the LVC set to on the new EVX2...is it 3.2V?
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  15. #15
    Marshal ksb51rl's Avatar
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    I'm pretty sure it is at least a couple tenths above that.
    (Seems to match my MMM level.)
    Last edited by ksb51rl; 08-21-2012 at 11:50 PM.
    Alt-248 on the number pad =

  16. #16
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    I think it is 3.4... it has been so long since I hit LVC. lol
    Whatever it is I just said... I could be wrong.

  17. #17
    RC Turnbuckle Jr. MITCH316's Avatar
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    Has anyone bought a 14.4v DeWalt motor from KD Designs? I ordered a motor with the option of everything soldered...I have been reading some mixed reviews about KD designs wiring and soldering work.

    I have never dealt with them before...just wondering if it was a good idea buying from them
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  18. #18
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    Quote Originally Posted by craig.mitch316 View Post
    Has anyone bought a 14.4v DeWalt motor from KD Designs? I ordered a motor with the option of everything soldered...I have been reading some mixed reviews about KD designs wiring and soldering work.

    I have never dealt with them before...just wondering if it was a good idea buying from them
    I recently bought the same package, I've only used it for about 3 hrs so far and I have no problems to report. The wires that it came with are the same size as stock but there's only 2 wires instead of 4. During the winter I'm planning on picking up a soldering iron and solder a 2 wires on each side instead of the fasteners used now.

    Tekin powered Summit

  19. #19
    Marshal ksb51rl's Avatar
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    Quote Originally Posted by Jimmy1971 View Post
    I recently bought the same package, I've only used it for about 3 hrs so far and I have no problems to report. The wires that it came with are the same size as stock but there's only 2 wires instead of 4. During the winter I'm planning on picking up a soldering iron and solder a 2 wires on each side instead of the fasteners used now.
    Although I have been one of the critics of KD, I will say that as small as the wires are, and only having one pair, the actual drills I've seen motors like this come out of have even smaller gauge wires.
    Regarding the connectors, there is no reason to not solder the leads directly to the brush holder. On the other end, I'd replace the pair(s) of bullet connectors with some quality gold-plated 4mm - 6.5mm - your choice.
    Alt-248 on the number pad =

  20. #20
    RC Turnbuckle Jr. jamann's Avatar
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    Edit wrong thread ....D'OH
    Last edited by jamann; 08-25-2012 at 10:26 PM.
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  21. #21
    RC Turnbuckle Jr. MITCH316's Avatar
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    Quote Originally Posted by Jimmy1971 View Post
    I recently bought the same package, I've only used it for about 3 hrs so far and I have no problems to report. The wires that it came with are the same size as stock but there's only 2 wires instead of 4. During the winter I'm planning on picking up a soldering iron and solder a 2 wires on each side instead of the fasteners used now.

    I'm confused mate when you say 2 wires instead of 4...the world of brushed motors is new 2 me and the EVX2. I know with my brushless motor their are 3 wires that plug into the esc. Should their be 4 for the EVX2?
    Rock n Rolla !

  22. #22
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    Brushed motors require 2 wires... a positive and negative.
    Brushless motors require 3 wires... an A, B, and C

    The 775 has 4 wires because the EVX2 is also used in the Revo and eMaxx; which run 2 motors. This eliminates the need for Traxxas to create yet another ESC.
    Whatever it is I just said... I could be wrong.

  23. #23
    RC Turnbuckle Jr. MITCH316's Avatar
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    Quote Originally Posted by Jimmie Neutron View Post
    Brushed motors require 2 wires... a positive and negative.
    Brushless motors require 3 wires... an A, B, and C

    The 775 has 4 wires because the EVX2 is also used in the Revo and eMaxx; which run 2 motors. This eliminates the need for Traxxas to create yet another ESC.
    Got it mate...would you ever run 2 motors on a summit? What did you do with the other 2 wires from the ESC? leave them there
    Rock n Rolla !

  24. #24
    RC Turnbuckle Jr. noir 522's Avatar
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    On the summit ( which uses the same esc as the dual motor erevo) all wires go to the one motor, 2 to positive 2 to negative. It allows more electricity to be moved but what it really does is save Traxxas the money and time of doing a different wiring set up.

    As for as running two brushed motors yes it can and has been done many times in a summit but the erevo little dual brushed 550 motors are built for speed not torque and would suffer in the summit. You would need two dewalts or two 700 or 775 motors. Heavy and power hungry.
    MAN, Use Common Sense
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  25. #25
    RC Turnbuckle Jr. jamann's Avatar
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    The other trucks used 550 size motors
    Smaller than the 775.some do run dual motors.dual dewalts would be pushing the evx2 pretty hard.i never found the need.make the truck even heavier



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  26. #26
    RC Turnbuckle Jr. noir 522's Avatar
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    Hay Jamam sometines I think your brain and mine are sharing the same circuit board.
    I just type faster
    MAN, Use Common Sense
    Funky Gecko, SumVee HDE

  27. #27
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    Here is what did with my ESC motor wires:
    Whatever it is I just said... I could be wrong.

  28. #28
    RC Turnbuckle Jr. jamann's Avatar
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    Quote Originally Posted by noir 522 View Post
    Hay Jamam sometines I think your brain and mine are sharing the same circuit board.
    I just type faster
    Makes sence half of the stuff I know I learned from reading your threads. Lol


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  29. #29
    RC Turnbuckle Jr. MITCH316's Avatar
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    Thanks guys for the info...I dont plan on running 2 motors in my truck. My goal here with this build is to have something different to the eRevo.

    I want to be able to take this truck home in working order to be able to use again without having to fix it.

    So do you guys recommend getting an extra set of wires for the EVX2...or is this not necessary.
    Rock n Rolla !

  30. #30
    RC Turnbuckle Jr. jamann's Avatar
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    I have run the single set for ever. Never been a issue thought about dbl just to make it neater


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    Mountains cant stop me
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  31. #31
    RC Turnbuckle Jr. MITCH316's Avatar
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    What did you do with the other 2 wires? Have you just left them hanging there...I am just thinking that if their are any mods to do, now would be the time when I am doing my build
    Rock n Rolla !

  32. #32
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    I went ahead and put dual wires on my Dewalt
    The Kid

    14.4 Dewalt & Misc. el-cheapo mods

  33. #33
    RC Turnbuckle Jr. jamann's Avatar
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    Yes just left them but I like the idea of the dual into one 5.5 bullet shrink tube both sides come apart nice.



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  34. #34
    Marshal ksb51rl's Avatar
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    Quote Originally Posted by Mayberry Kid View Post
    I went ahead and put dual wires on my Dewalt
    Me too. 2x each 14AWG wires with 4x 4mm bullets.
    Alt-248 on the number pad =

  35. #35
    RC Turnbuckle Jr. jamann's Avatar
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    And converted.....


    Dbl out of esc into one maybe I will try slightly larger wire for the single see how it goes


    Sent using lipo power
    Mountains cant stop me
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  36. #36
    RC Turnbuckle Jr. MITCH316's Avatar
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    Quote Originally Posted by Mayberry Kid View Post
    I went ahead and put dual wires on my Dewalt
    Quote Originally Posted by ksb51rl View Post
    Me too. 2x each 14AWG wires with 4x 4mm bullets.
    Thanks...will look into this as my parts arrive.
    Rock n Rolla !

  37. #37
    RC Turnbuckle Jr. MITCH316's Avatar
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    Quote Originally Posted by jamann View Post
    And converted.....


    Dbl out of esc into one maybe I will try slightly larger wire for the single see how it goes
    Thanks mate...a picture always speaks a thousand words
    Rock n Rolla !

  38. #38
    RC Turnbuckle Jr. MITCH316's Avatar
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    Got my DeWalt motor in the post today...is this motor waterproof as is? I see a lot of exposed coppers and internals, just want to make sure before I stuff something up and get water all over it...
    Rock n Rolla !

  39. #39
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    Yes.
    Water will accelerate wear though.
    Whatever it is I just said... I could be wrong.

  40. #40
    RC Turnbuckle Jr. MITCH316's Avatar
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    Any special care instructions I should know about this motor before first time use and general maintenance?
    Rock n Rolla !

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