Re: (ET) Elec-trak Digest, Vol 19, Issue 103

[Robert Troll <roberttroll hotmail com>]

I have also done several Curtis conversations.  Pretty easy if you don't 
want field weakening.  Little harder if you do. A 4qd should work just 
fine as well.

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From: elec-trak-request cosmos phy tufts edu <elec-trak-request cosmos phy 
tufts edu>
Sent: Friday, November 5, 2021 8:35:03 PM
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Subject: Elec-trak Digest, Vol 19, Issue 103

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Today's Topics:

   1.  Front tires / rims (Paul Anderegg)
   2.  E-20 Rebuild w/Electronic Controller Kit (John Hosken (USA))
   3. Re:  E-20 Rebuild w/Electronic Controller Kit (David Roden)
   4. Re:  E-20 Rebuild w/Electronic Controller Kit (jlantonucci)
   5. Re:  E-20 Rebuild w/Electronic Controller Kit (Steve Gaarder)
   6. Re:  E-20 Rebuild w/Electronic Controller Kit (Rob Brockway)


----------------------------------------------------------------------

Message: 1
Date: Fri, 5 Nov 2021 11:14:18 -0500
From: Paul Anderegg <tpa2008 gmail com>
To: elec-trak cosmos phy tufts edu
Subject: (ET) Front tires / rims
Message-ID:
        <CAC=CQ4eFs6+P14QrAG=ixpNzvTR7aFF3pwth-wPunYFqPozjkA mail gmail 
com>
Content-Type: text/plain; charset="utf-8"

Hi all,

Does anyone have or know any leads for the wide front tires and rims?
Please contact me offline if you have any information.

T. Paul
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Message: 2
Date: Fri, 5 Nov 2021 13:01:36 -0400
From: "John Hosken \(USA\)" <john hosken usa net>
To: <elec-trak cosmos phy tufts edu>
Subject: (ET) E-20 Rebuild w/Electronic Controller Kit
Message-ID: <000a01d7d266$cb4d31d0$61e79570$@usa.net>
Content-Type: text/plain; charset="us-ascii"

Greetings Trakkers,

After fifteen years, my E-20 floated to the top of the list. Varmints ate
the wiring before I got it. The batteries were used as cores for another
project. A box of NOS parts got stashed ten years ago.

I am starting to research possibilities, but leads so far have been dead
ends. https://freerangeelectric.com/ doesn't answer their phone or email.
Clean Power Supply doesn't sell kits. Another email I found on the forum is
unreachable. A local Elec-Trak expert recommended by my favorite Cub Cadet
person doesn't return calls. The Elec-Trak Owners Club stopped sending me
birthday messages nine years ago. Most of the posts I read lately are
ancient. AllTrax won't sell direct and sent me back to Electric Tractor
Store. EV Album has a bunch of addresses I haven't tried yet, though.

Help!

John

Eight five seven - two three four - five seven eight nine

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Message: 3
Date: Fri, 05 Nov 2021 17:01:20 -0400
From: "David Roden" <etpost drmm net>
To: <elec-trak cosmos phy tufts edu>, "John Hosken \UUSA\""
        <john hosken usa net>
Subject: Re: (ET) E-20 Rebuild w/Electronic Controller Kit
Message-ID: <61856360 20226 4D1B8356 etpost drmm net>
Content-Type: text/plain; charset=US-ASCII

Hi John,

The Electric Tractor Store seems to be a very part-time activity for Jim.
Keep trying and eventually he'll respond.  It may take days or weeks.

Jim offers a GE controller.  IIRC it's a bit on the pricey side but looks
to be a solid choice.  I don't know of anything other than Jim's package
that's closer to being an actual ET controller kit.

Other controllers will probably be cheaper, but will require some
moderately significant electrical / electronic chops to adapt and install.

Alltrax once made a controller designed for the ET.  It worked very well.
They discontinued it in 2018 when they redesigned their controller range.
They hadn't sold enough of the first model to make a new one worthwhile. If
memory serves, the only reason that they ever made an ET model at all was
that at the time they had an engineer on the staff who owned an ET.

Several people here have used Curtis golf car controllers, apparently with
success.  Some electrical design work is required.

Probably an Alltrax could also be used.

Any series motor controller is a bit iffy with an ET motor.  The ET motor
inductance is lower than a series motor controller usually expects, so the
controller's current limit may not be able to react fast enough.  If you
use a series motor golf car controller I recommend getting the highest
current capacity that you can afford.

4QD controllers from the UK are harder to come by than Curtis or even
Alltrax, but I think might be a better choice.  they're meant for PM motors
but should work fine on an ET sepex motor if you rig up field control.
Some 4QD models have brake release outputs that can be used to operate a
field relay.

I may have a slightly used older 4QD with brake output for sale soon.


David Roden - Akron, Ohio, USA

= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
Note: mail sent to the "etpost" address will not reach me.  To send
me a private message, please use the address shown at the bottom
of this page : http://www.evdl.org/help/
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =






------------------------------

Message: 4
Date: Fri, 5 Nov 2021 17:20:09 -0400
From: jlantonucci <jlantonucci comcast net>
To: elec-trak <elec-trak cosmos phy tufts edu>, "John Hosken (USA)"
        <john hosken usa net>
Subject: Re: (ET) E-20 Rebuild w/Electronic Controller Kit
Message-ID: <97cdca68-fc8b-4b8b-8ffd-731ca8ea564c@edison>
Content-Type: text/plain; charset="utf-8"



I've restored an E-20 and added Alltrax.    I have the circuit diagrams.   
 E-mail me off list.










>
> On Nov 5, 2021 at 1:14 PM, John Hosken (USA)  <john hosken usa net>  
> wrote:
>
>
>  Greetings Trakkers,
>
> After fifteen years, my E-20 floated to the top of the list. Varmints ate
> the wiring before I got it. The batteries were used as cores for another
> project. A box of NOS parts got stashed ten years ago.
>
> I am starting to research possibilities, but leads so far have been dead
> ends. https://freerangeelectric.com/ doesn't answer their phone or email.
> Clean Power Supply doesn't sell kits. Another email I found on the forum 
> is
> unreachable. A local Elec-Trak expert recommended by my favorite Cub 
> Cadet
> person doesn't return calls. The Elec-Trak Owners Club stopped sending me
> birthday messages nine years ago. Most of the posts I read lately are
> ancient. AllTrax won't sell direct and sent me back to Electric Tractor
> Store. EV Album has a bunch of addresses I haven't tried yet, though.
>
> Help!
>
> John
>
> Eight five seven - two three four - five seven eight nine
>
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> <http://cosmos.phy.tufts.edu/mhonarc/elec-trak/attachments/20211105/def801e6/attachment.htm>
> _______________________________________________
> Elec-trak mailing list
> Elec-trak cosmos phy tufts edu
> https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
>

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Message: 5
Date: Fri, 5 Nov 2021 17:49:33 -0400 (EDT)
From: Steve Gaarder <gaarder ecovillage ithaca ny us>
To: "John Hosken (USA)" <john hosken usa net>
Cc: elec-trak <elec-trak cosmos phy tufts edu>
Subject: Re: (ET) E-20 Rebuild w/Electronic Controller Kit
Message-ID: <alpine DEB 2 21 2111051748160 14899 mailtoad evi.earth>
Content-Type: text/plain; format=flowed; charset=US-ASCII

And I have installed a 4QD in an E-15 and can help you if you choose that
route.

steve

On Fri, 5 Nov 2021, jlantonucci wrote:

>
>
> I've restored an E-20 and added Alltrax.    I have the circuit diagrams. 
>    E-mail me off list.
>
>
>
>
>
>
>
>
>
>
>>
>> On Nov 5, 2021 at 1:14 PM, John Hosken (USA)  <john hosken usa net>  
>> wrote:
>>
>>
>>  Greetings Trakkers,
>>
>> After fifteen years, my E-20 floated to the top of the list. Varmints 
>> ate
>> the wiring before I got it. The batteries were used as cores for another
>> project. A box of NOS parts got stashed ten years ago.
>>
>> I am starting to research possibilities, but leads so far have been dead
>> ends. https://freerangeelectric.com/ doesn't answer their phone or 
>> email.
>> Clean Power Supply doesn't sell kits. Another email I found on the 
>> forum is
>> unreachable. A local Elec-Trak expert recommended by my favorite Cub 
>> Cadet
>> person doesn't return calls. The Elec-Trak Owners Club stopped sending 
>> me
>> birthday messages nine years ago. Most of the posts I read lately are
>> ancient. AllTrax won't sell direct and sent me back to Electric Tractor
>> Store. EV Album has a bunch of addresses I haven't tried yet, though.
>>
>> Help!
>>
>> John
>>
>> Eight five seven - two three four - five seven eight nine
>>
>> -------------- next part --------------
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>> URL:  
>> <http://cosmos.phy.tufts.edu/mhonarc/elec-trak/attachments/20211105/def801e6/attachment.htm>
>> _______________________________________________
>> Elec-trak mailing list
>> Elec-trak cosmos phy tufts edu
>> https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
>>
>
> -------------- next part --------------
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> URL: 
> <http://cosmos.phy.tufts.edu/mhonarc/elec-trak/attachments/20211105/c3285e2f/attachment.htm>
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> Elec-trak cosmos phy tufts edu
> https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
>



------------------------------

Message: 6
Date: Fri, 5 Nov 2021 20:34:49 -0400
From: Rob Brockway <getractor yahoo com>
To: noaddress drmm net
Cc: elec-trak cosmos phy tufts edu, john hosken usa net
Subject: Re: (ET) E-20 Rebuild w/Electronic Controller Kit
Message-ID: <2271616A-2273-4999-9BFA-56FCCB29BD4D yahoo com>
Content-Type: text/plain; charset=utf-8

Dave,
Two questions on controllers.

First how much braking can you get from regen on the 4q?  Is it good 
enough to not use the mechanical brake?

Did the altrax have regen?

Thanks,

Rob


Sent from my iPad

> On Nov 5, 2021, at 5:01 PM, David Roden <etpost drmm net> wrote:
>
> ?Hi John,
>
> The Electric Tractor Store seems to be a very part-time activity for Jim.
> Keep trying and eventually he'll respond.  It may take days or weeks.
>
> Jim offers a GE controller.  IIRC it's a bit on the pricey side but looks
> to be a solid choice.  I don't know of anything other than Jim's package
> that's closer to being an actual ET controller kit.
>
> Other controllers will probably be cheaper, but will require some
> moderately significant electrical / electronic chops to adapt and 
> install.
>
> Alltrax once made a controller designed for the ET.  It worked very well.
> They discontinued it in 2018 when they redesigned their controller range.
> They hadn't sold enough of the first model to make a new one worthwhile. 
> If
> memory serves, the only reason that they ever made an ET model at all was
> that at the time they had an engineer on the staff who owned an ET.
>
> Several people here have used Curtis golf car controllers, apparently 
> with
> success.  Some electrical design work is required.
>
> Probably an Alltrax could also be used.
>
> Any series motor controller is a bit iffy with an ET motor.  The ET motor
> inductance is lower than a series motor controller usually expects, so 
> the
> controller's current limit may not be able to react fast enough.  If you
> use a series motor golf car controller I recommend getting the highest
> current capacity that you can afford.
>
> 4QD controllers from the UK are harder to come by than Curtis or even
> Alltrax, but I think might be a better choice.  they're meant for PM 
> motors
> but should work fine on an ET sepex motor if you rig up field control.
> Some 4QD models have brake release outputs that can be used to operate a
> field relay.
>
> I may have a slightly used older 4QD with brake output for sale soon.
>
>
> David Roden - Akron, Ohio, USA
>
> = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
> Note: mail sent to the "etpost" address will not reach me.  To send
> me a private message, please use the address shown at the bottom
> of this page : http://www.evdl.org/help/
> = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
>
>
>
>
> _______________________________________________
> Elec-trak mailing list
> Elec-trak cosmos phy tufts edu
> https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak




------------------------------

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End of Elec-trak Digest, Vol 19, Issue 103
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