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Discussion Starter #1
I had a a couple Gizmos. One was quite early and the other was fairly
recent. They both were geared at about 6:1.
They both seemed to have the right balance for starting and running
at top speed (~40mph).
Tom

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Discussion Starter #2
Tom,

Did either of your Gizmos have a belt drive? Also, did
either have a SepEx motor and Sevcon controller?

David
--- Tom Gocze <[email protected]> wrote:

> I had a a couple Gizmos. One was quite early and the
> other was fairly
> recent. They both were geared at about 6:1.
> They both seemed to have the right balance for
> starting and running
> at top speed (~40mph).
> Tom
>
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev
>


David D. Nelson
[email protected]



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Discussion Starter #3
Hi David,
Both were chain drive. The first one was built around 2001. It had an
ADC motor and a burnt out Curtis controller. It was burnt out while
it was being
loaded onto the delivery truck. The seller's wife switched between
forward and reverse while trying to move it onto the loading ramp and
took out the controller.

I bought a rebuilt Curtis from Golftech, which was defective. After
getting pissed off while waiting for a call back, I decided to put in
an Etek motor and a Sevcon Millipak 4Q controller. The Etek bolted
right in, so I figured that was a sign from God. LOL.

It ran pretty good, but in hindsight I am skeptical about the
longevity of the Etek. The Sevcon was a very impressive controller
that was hard to understand how to program. The directions were
written by British engineers and were a little confusing. Their US
engineers were extremely helpful and talked me through the
programming. They were able to diagnose a couple issues and get me
running in no time.

Anyway, the other one was an early basket case that was all in
pieces. I cleaned it up and used a contactor controller that was
24/48V with a starting resistor. It had a 3hp PM motor that was
fairly heavy, so I figured that 48V would be fine on it. It ran very
well also.
The last step on the controller would snap you back like a kickdown
on an automatic transmission would when you floor it.

Both were about 6:1. The chain drives were a little more noisy than a
belt would've been, but they were simple to maintain and work on.
And they are cheap and parts are easy to find. I noticed the BugE
uses a chain, probably for the same reason. The sound level is the
same on the BugE as it was on the Gizmos.

Tom
PS. I still have a contactor controller archive on www.hotandcold.tv.




Tom,

Did either of your Gizmos have a belt drive? Also, did
either have a SepEx motor and Sevcon controller?

David
--- Tom Gocze <[email protected]> wrote:


> I had a a couple Gizmos. One was quite early and the
> other was fairly
> recent. They both were geared at about 6:1.
> They both seemed to have the right balance for
> starting and running
> at top speed (~40mph).
> Tom
>
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev
>
>


David D. Nelson
[email protected]

_______________________________________________
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Discussion Starter #4
Tom,

Maybe if I can't find the right stuff for a belt drive
I may just have to go with a chain drive setup. I'd
rather not have the extra noise but I don't really
know how much noise chain drives really have. I'm just
thinking of the noise from my bicycle chain when I'm
cruising along at 20+ mph. BTW, do you remember the
tooth counts on the two gears or at least on the drive
gear?

David

--- Tom Gocze <[email protected]> wrote:

> Hi David,
> Both were chain drive. The first one was built
> around 2001. It had an
> ADC motor and a burnt out Curtis controller. It was
> burnt out while
> it was being
> loaded onto the delivery truck. The seller's wife
> switched between
> forward and reverse while trying to move it onto the
> loading ramp and
> took out the controller.
>
> I bought a rebuilt Curtis from Golftech, which was
> defective. After
> getting pissed off while waiting for a call back, I
> decided to put in
> an Etek motor and a Sevcon Millipak 4Q controller.
> The Etek bolted
> right in, so I figured that was a sign from God.
> LOL.
>
> It ran pretty good, but in hindsight I am skeptical
> about the
> longevity of the Etek. The Sevcon was a very
> impressive controller
> that was hard to understand how to program. The
> directions were
> written by British engineers and were a little
> confusing. Their US
> engineers were extremely helpful and talked me
> through the
> programming. They were able to diagnose a couple
> issues and get me
> running in no time.
>
> Anyway, the other one was an early basket case that
> was all in
> pieces. I cleaned it up and used a contactor
> controller that was
> 24/48V with a starting resistor. It had a 3hp PM
> motor that was
> fairly heavy, so I figured that 48V would be fine on
> it. It ran very
> well also.
> The last step on the controller would snap you back
> like a kickdown
> on an automatic transmission would when you floor
> it.
>
> Both were about 6:1. The chain drives were a little
> more noisy than a
> belt would've been, but they were simple to maintain
> and work on.
> And they are cheap and parts are easy to find. I
> noticed the BugE
> uses a chain, probably for the same reason. The
> sound level is the
> same on the BugE as it was on the Gizmos.
>
> Tom
> PS. I still have a contactor controller archive on
> www.hotandcold.tv.
>
>
>
>
> Tom,
>
> Did either of your Gizmos have a belt drive? Also,
> did
> either have a SepEx motor and Sevcon controller?
>
> David
>
--- Tom Gocze <[email protected]> wrote:
>
>
> > I had a a couple Gizmos. One was quite early and
> the
> > other was fairly
> > recent. They both were geared at about 6:1.
> > They both seemed to have the right balance for
> > starting and running
> > at top speed (~40mph).
> > Tom
> >
> > _______________________________________________
> > For subscription options, see
> > http://lists.sjsu.edu/mailman/listinfo/ev
> >
> >
>
>
> David D. Nelson
> [email protected]
>
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev
>




____________________________________________________________________________________
Boardwalk for $500? In 2007? Ha! Play Monopoly Here and Now (it's updated for today's economy) at Yahoo! Games.
http://get.games.yahoo.com/proddesc?gamekey=monopolyherenow

_______________________________________________
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Discussion Starter #5
I found the noise from the chain drive in my Aspire intolerable.
Nothing like a bike, its like a motorcycle, a buzzsaw.
Jack

David D. Nelson wrote:
> Tom,
>
> Maybe if I can't find the right stuff for a belt drive
> I may just have to go with a chain drive setup. I'd
> rather not have the extra noise but I don't really
> know how much noise chain drives really have. I'm just
> thinking of the noise from my bicycle chain when I'm
> cruising along at 20+ mph. BTW, do you remember the
> tooth counts on the two gears or at least on the drive
> gear?
>
> David
>
> --- Tom Gocze <[email protected]> wrote:
>
>
>>Hi David,
>>Both were chain drive. The first one was built
>>around 2001. It had an
>>ADC motor and a burnt out Curtis controller. It was
>>burnt out while
>>it was being
>>loaded onto the delivery truck. The seller's wife
>>switched between
>>forward and reverse while trying to move it onto the
>>loading ramp and
>>took out the controller.
>>
>> I bought a rebuilt Curtis from Golftech, which was
>>defective. After
>>getting pissed off while waiting for a call back, I
>>decided to put in
>>an Etek motor and a Sevcon Millipak 4Q controller.
>>The Etek bolted
>>right in, so I figured that was a sign from God.
>>LOL.
>>
>>It ran pretty good, but in hindsight I am skeptical
>>about the
>>longevity of the Etek. The Sevcon was a very
>>impressive controller
>>that was hard to understand how to program. The
>>directions were
>>written by British engineers and were a little
>>confusing. Their US
>>engineers were extremely helpful and talked me
>>through the
>>programming. They were able to diagnose a couple
>>issues and get me
>>running in no time.
>>
>>Anyway, the other one was an early basket case that
>>was all in
>>pieces. I cleaned it up and used a contactor
>>controller that was
>>24/48V with a starting resistor. It had a 3hp PM
>>motor that was
>>fairly heavy, so I figured that 48V would be fine on
>>it. It ran very
>>well also.
>>The last step on the controller would snap you back
>>like a kickdown
>>on an automatic transmission would when you floor
>>it.
>>
>>Both were about 6:1. The chain drives were a little
>>more noisy than a
>>belt would've been, but they were simple to maintain
>>and work on.
>>And they are cheap and parts are easy to find. I
>>noticed the BugE
>>uses a chain, probably for the same reason. The
>>sound level is the
>>same on the BugE as it was on the Gizmos.
>>
>>Tom
>>PS. I still have a contactor controller archive on
>>www.hotandcold.tv.
>>
>>
>>
>>
>>Tom,
>>
>>Did either of your Gizmos have a belt drive? Also,
>>did
>>either have a SepEx motor and Sevcon controller?
>>
>>David
>>--- Tom Gocze <[email protected]> wrote:
>>
>>
>>
>>>I had a a couple Gizmos. One was quite early and
>>
>>the
>>
>>>other was fairly
>>>recent. They both were geared at about 6:1.
>>>They both seemed to have the right balance for
>>>starting and running
>>>at top speed (~40mph).
>>>Tom
>>>
>>>_______________________________________________
>>>For subscription options, see
>>>http://lists.sjsu.edu/mailman/listinfo/ev
>>>
>>>
>>
>>
>>David D. Nelson
>>[email protected]
>>
>>_______________________________________________
>>For subscription options, see
>>http://lists.sjsu.edu/mailman/listinfo/ev
>>
>
>
>
>
>
> ____________________________________________________________________________________
> Boardwalk for $500? In 2007? Ha! Play Monopoly Here and Now (it's updated for today's economy) at Yahoo! Games.
> http://get.games.yahoo.com/proddesc?gamekey=monopolyherenow
>
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev
>


_______________________________________________
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70 Posts
Discussion Starter #6
Hi David, Sounds like you may want to start looking at something like a 1"
wide timing (cog) belt. Chain and sprockets are cheap, available and most
efficient, but noisy. Those Eagle belts and pulleys are expensive and not
worth the extra money. Check McMaster Carr on-line, they also have belt
tensioners and idlers if ya need em. You could consider experimenting with
chain and sprockets to find your ideal gear ratio, then spring for the
Cogbelt and pulleys when you get tired of the noiz. Bob

----- Original Message -----
From: "David D. Nelson" <[email protected]>
To: "Electric Vehicle Discussion List" <[email protected]>
Sent: Wednesday, August 29, 2007 7:09 PM
Subject: Re: [EVDL] Gizmo Gearing


> Tom,
>
> Maybe if I can't find the right stuff for a belt drive
> I may just have to go with a chain drive setup. I'd
> rather not have the extra noise but I don't really
> know how much noise chain drives really have. I'm just
> thinking of the noise from my bicycle chain when I'm
> cruising along at 20+ mph. BTW, do you remember the
> tooth counts on the two gears or at least on the drive
> gear?
>
> David
>
> --- Tom Gocze <[email protected]> wrote:
>
>> Hi David,
>> Both were chain drive. The first one was built
>> around 2001. It had an
>> ADC motor and a burnt out Curtis controller. It was
>> burnt out while
>> it was being
>> loaded onto the delivery truck. The seller's wife
>> switched between
>> forward and reverse while trying to move it onto the
>> loading ramp and
>> took out the controller.
>>
>> I bought a rebuilt Curtis from Golftech, which was
>> defective. After
>> getting pissed off while waiting for a call back, I
>> decided to put in
>> an Etek motor and a Sevcon Millipak 4Q controller.
>> The Etek bolted
>> right in, so I figured that was a sign from God.
>> LOL.
>>
>> It ran pretty good, but in hindsight I am skeptical
>> about the
>> longevity of the Etek. The Sevcon was a very
>> impressive controller
>> that was hard to understand how to program. The
>> directions were
>> written by British engineers and were a little
>> confusing. Their US
>> engineers were extremely helpful and talked me
>> through the
>> programming. They were able to diagnose a couple
>> issues and get me
>> running in no time.
>>
>> Anyway, the other one was an early basket case that
>> was all in
>> pieces. I cleaned it up and used a contactor
>> controller that was
>> 24/48V with a starting resistor. It had a 3hp PM
>> motor that was
>> fairly heavy, so I figured that 48V would be fine on
>> it. It ran very
>> well also.
>> The last step on the controller would snap you back
>> like a kickdown
>> on an automatic transmission would when you floor
>> it.
>>
>> Both were about 6:1. The chain drives were a little
>> more noisy than a
>> belt would've been, but they were simple to maintain
>> and work on.
>> And they are cheap and parts are easy to find. I
>> noticed the BugE
>> uses a chain, probably for the same reason. The
>> sound level is the
>> same on the BugE as it was on the Gizmos.
>>
>> Tom
>> PS. I still have a contactor controller archive on
>> www.hotandcold.tv.
>>
>>
>>
>>
>> Tom,
>>
>> Did either of your Gizmos have a belt drive? Also,
>> did
>> either have a SepEx motor and Sevcon controller?
>>
>> David
>
> --- Tom Gocze <[email protected]> wrote:
>>
>>
>> > I had a a couple Gizmos. One was quite early and
>> the
>> > other was fairly
>> > recent. They both were geared at about 6:1.
>> > They both seemed to have the right balance for
>> > starting and running
>> > at top speed (~40mph).
>> > Tom
>> >
>> > _______________________________________________
>> > For subscription options, see
>> > http://lists.sjsu.edu/mailman/listinfo/ev
>> >
>> >
>>
>>
>> David D. Nelson
>> [email protected]
>>
>> _______________________________________________
>> For subscription options, see
>> http://lists.sjsu.edu/mailman/listinfo/ev
>>
>
>
>
>
> ____________________________________________________________________________________
> Boardwalk for $500? In 2007? Ha! Play Monopoly Here and Now (it's updated
> for today's economy) at Yahoo! Games.
> http://get.games.yahoo.com/proddesc?gamekey=monopolyherenow
>
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev

_______________________________________________
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70 Posts
Discussion Starter #7
Bob,

Do the timing belts have a straight "tooth" pattern
rather than the V pattern? If so, do the pulleys have
a flange on either side to keep the belt from working
off of the pulley? An idler pulley might be needed so
I can get the 6:1 ratio without the belt hitting the
frame but I won't know until I get my motor back.

Thank you for the idea. I'll check it out.

David
--- Bob Martin <[email protected]> wrote:

> Hi David, Sounds like you may want to start looking
> at something like a 1"
> wide timing (cog) belt. Chain and sprockets are
> cheap, available and most
> efficient, but noisy. Those Eagle belts and pulleys
> are expensive and not
> worth the extra money. Check McMaster Carr on-line,
> they also have belt
> tensioners and idlers if ya need em. You could
> consider experimenting with
> chain and sprockets to find your ideal gear ratio,
> then spring for the
> Cogbelt and pulleys when you get tired of the noiz.
> Bob


David D. Nelson
[email protected]



____________________________________________________________________________________
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Discussion Starter #8
David, it sounds like you may be a member of the Gizmo group on Yahoogroups?
You might want to ask there. There was at least one (the last Gizmo made?)
that was belt drive. If they could do it, you should be able to.

I found Gates to be a great source of information and supplies. They don't
sell the Harley belts (by contract) but sell one that's very close.

BTW, I didn't find the chain noise all that bad, even with the curtains
open. Perhaps that was because of how it was mounted or because of the chain
used.

35 seemed a comfortable cruising speed, though it would run at 40 on the
flat. If you have some serious hills, you might well consider dropping the
ratio, especially if going with a belt drive.

----- Original Message -----
From: "David D. Nelson" <[email protected]>
To: "Electric Vehicle Discussion List" <[email protected]>
Sent: Wednesday, August 29, 2007 7:09 PM
Subject: Re: [EVDL] Gizmo Gearing


> Tom,
>
> Maybe if I can't find the right stuff for a belt drive
> I may just have to go with a chain drive setup. I'd
> rather not have the extra noise but I don't really
> know how much noise chain drives really have. I'm just
> thinking of the noise from my bicycle chain when I'm
> cruising along at 20+ mph. BTW, do you remember the
> tooth counts on the two gears or at least on the drive
> gear?
>
> David

_______________________________________________
For subscription options, see
http://lists.sjsu.edu/mailman/listinfo/ev
 

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Discussion Starter #9
Yeah David, they do have straight tooth pattern and side flanges, McMaster
Carr has pics with dimensions to give you something to design around, Kick
some Amps! Bob
----- Original Message -----
From: "David D. Nelson" <[email protected]>
To: "Electric Vehicle Discussion List" <[email protected]>
Sent: Friday, August 31, 2007 9:01 AM
Subject: Re: [EVDL] Gizmo Gearing


> Bob,
>
> Do the timing belts have a straight "tooth" pattern
> rather than the V pattern? If so, do the pulleys have
> a flange on either side to keep the belt from working
> off of the pulley? An idler pulley might be needed so
> I can get the 6:1 ratio without the belt hitting the
> frame but I won't know until I get my motor back.
>
> Thank you for the idea. I'll check it out.
>
> David
> --- Bob Martin <[email protected]> wrote:
>
>> Hi David, Sounds like you may want to start looking
>> at something like a 1"
>> wide timing (cog) belt. Chain and sprockets are
>> cheap, available and most
>> efficient, but noisy. Those Eagle belts and pulleys
>> are expensive and not
>> worth the extra money. Check McMaster Carr on-line,
>> they also have belt
>> tensioners and idlers if ya need em. You could
>> consider experimenting with
>> chain and sprockets to find your ideal gear ratio,
>> then spring for the
>> Cogbelt and pulleys when you get tired of the noiz.
>> Bob
>
>
> David D. Nelson
> [email protected]
>
>
>
> ____________________________________________________________________________________
> Got a little couch potato?
> Check out fun summer activities for kids.
> http://search.yahoo.com/search?fr=oni_on_mail&p=summer+activities+for+kids&cs=bz
>
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev

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Discussion Starter #10
--- Michael Perry <[email protected]> wrote:

> David, it sounds like you may be a member of the
> Gizmo group on Yahoogroups?
> You might want to ask there. There was at least one
> (the last Gizmo made?)
> that was belt drive. If they could do it, you should
> be able to.

I'm wondering if my Gizmo is that one. It was used for
testing things out, according to Carl W. It ends up
that the 3:1 ratio puts the motor at the rated rpm
when doing 50mph. Maybe this is why Carl told me not
to go over 50mph. In talking with D&D Motors that rpm
is not the max and I should use a 6:1 ratio and
should top out at about 45mph. Thanks for the idea.
I'll go over and post on the Gizmo group. I haven't
had luck finding the right gear sizes at
McMaster-Carr. Either they are too big or too small.
Maybe I'll go to a MC shop and see what size they use
on some of the belt driven bikes.



David D. Nelson
[email protected]



____________________________________________________________________________________
Boardwalk for $500? In 2007? Ha! Play Monopoly Here and Now (it's updated for today's economy) at Yahoo! Games.
http://get.games.yahoo.com/proddesc?gamekey=monopolyherenow

_______________________________________________
For subscription options, see
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