Show Chrome GL1500 Heated Grips


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Mh434
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Re: Show Chrome GL1500 Heated Grips

Post by Mh434 » Tue Jun 06, 2017 1:48 pm



I'm guessing, then, that the manufacturer for Show Chrome simply made a bad choice of MOSFET.

WingAdmin - do you think that the Oxford-type rotary (they call it "analog"), infinite-settings (no detents, apparently) type controller would also be a MOSFET design inside the box? I'd hate to throw another $100 for a controller into the mix, if it's unlikely to work...

It's strange - I've found lots of references to this problem with the ShowChrome grips (and a lot of very bad reviews), yet the company doesn't seem to be inclined to offer a fix.



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coldcanuk
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Re: Show Chrome GL1500 Heated Grips

Post by coldcanuk » Tue Jun 06, 2017 3:00 pm

AndyFromWI wrote:Fixing the Controller.
I bypassed the switch on the controller of my ShowChrome heated grips.
I still like having them on cool days, and the bypassed switch has not let me down yet.
The controller is easy to open up and just bypass the built in push button switch.
WP_20170107_003.jpg

-andy
I opened up my control unit last night and found it packed with a clear hard substance. I think trying to chip the hard substance out could damage the board. I think I may try the Oxford solution. As stated, "I would hate to throw another $100 for a controller into the mix".

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Mh434
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Re: Show Chrome GL1500 Heated Grips

Post by Mh434 » Tue Jun 06, 2017 3:04 pm

Well, I've fired off a query to Oxford Products, in England, asking them about their "analog" controller, and whether my thoughts about adapting one to the Show Chrome grips would work.

I'll update when (if?) I get a reply.

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MikeB
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Re: Show Chrome GL1500 Heated Grips

Post by MikeB » Tue Jun 06, 2017 3:40 pm

Guys, I'm telling you, the Heat-Troller is the way to go. $59.00

https://firstgear-usa.com/heated/trolle ... -1101.html

Easy solution to what appears to be a complex problem, but it is not complex. The grips need 12 volts to heat up, the Heat-Trollers provide it. If any of you have a heat controller for your heated gear, try using the output from that controller as a test and I am certain you will see that it will work.

And if that one does not suit your fancy, you can always use this one --> https://firstgear-usa.com/heated/trolle ... llerr.html. Just cut off the coaxial connector that is used to attach to gloves and wire it to your heated grips. It is $69.00.
MikeB
Tacoma, WA, USA

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Re: Show Chrome GL1500 Heated Grips

Post by WingAdmin » Tue Jun 06, 2017 7:34 pm

Mh434 wrote:I'm guessing, then, that the manufacturer for Show Chrome simply made a bad choice of MOSFET.

WingAdmin - do you think that the Oxford-type rotary (they call it "analog"), infinite-settings (no detents, apparently) type controller would also be a MOSFET design inside the box? I'd hate to throw another $100 for a controller into the mix, if it's unlikely to work...

It's strange - I've found lots of references to this problem with the ShowChrome grips (and a lot of very bad reviews), yet the company doesn't seem to be inclined to offer a fix.
It could be a MOSFET that was not rated for the current required for the application.

You could definitely have an analog potentiometer control the duty cycle of an oscillator (say a 555 timer) which would then trigger a MOSFET. That would give you infinite control. That's how I would design it, anyway.

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Mh434
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Re: Show Chrome GL1500 Heated Grips

Post by Mh434 » Wed Jun 07, 2017 10:44 am

Well, I got a response back from Oxford, and it is more or less as I anticipated - my main question was not answered, the fear of liability raises its ugly head, and they want me to buy an entire set of their grips...

"Unfortunately we cannot suggest that this would work as it hasn’t been tested.
With this in mind we are not sure whether this would be safe or whether this would work.
We would recommend purchasing a pair of our heated grips as they have been tested and we know that they are safe.

Hope this helps.

Kind Regards,"


I'm disappointed, but not surprised. It sure would have been nice to know how their controller works, but apparently they're not about to tell me that... :roll:

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Mh434
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Re: Show Chrome GL1500 Heated Grips

Post by Mh434 » Thu Jun 08, 2017 4:51 pm

Well, I came up with a solution! I took my 'Wing's front wheel & my new, Dunlop Elite 4 tire to my local motorcycle shop today to get the tire mounted (they do DynaBeads, too - gonna install 'em when they mount the new tire).

It's a small, family-run business (same guy running it, for 38 years) - you know, the kind of place with pegboard everywhere, and dusty packages of all kinds of bits & bobs hanging from it. While I was there, I inquired about the possibility of finding a rheostat-type controller for my grips. He said "Hmm...let's see...", and consulted the jam-packed wall of bags of items. A second later, he said "Here you go!". Yup - the exact item that Show Chrome USED to sell with their grips. He said that people had broken these by grabbing onto the knob & cranking it hard against the stop at the "hot" end, and breaking a small part inside. He said that as long as you're reasonably gentle with the knob at the "hot" end, they're absolutely reliable, and there have been no issues with the ones he sells over the last decade or two. That having been said, when he found out they were going to stop selling them, he bought ll he could get (3), for stock purposes. He still has one left!

What was even cooler was the price - $11.00. That was the retail when he last brought these in, 10 years ago or so, so that was my price today. He checked his supplier online - even if he could get more (and they're "out of stock" & "no longer available"), his wholesale price would be $39. Score!! The controller even has the same connectors that the Show Chrome grips use, so no adapting necessary!

'Course, I never get out of that shop unscathed - I was poking around, and found a pair of Fox Comp 5 shorty boots, for a ridiculously low price (a guy had bought them, never wore them, then suddenly couldn't ride anymore due to a crash, so he returned them for consignment). I have extraordinarily wide feet (size 13EEEE or 14EEE), so finding riding boots that fit me has been a 20 year adventure in disappointment and disillusionment. These ones FIT!! Yes, they're a little stiff yet, but the reviews on 'em are stellar, so...I'm chuffed!!

Anyway, once I have the new controller mounted, I'll update my progress...

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Re: Show Chrome GL1500 Heated Grips

Post by Rednaxs60 » Thu Jun 08, 2017 4:55 pm

From your description, you went and saw Ken - know the shop and you are right - hard to get out of there without separating your money from your wallet. he is always worth a trip to when looking for items.

Cheers
"When you write the story of your life, don't let anyone else hold the pen"

Ernest

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Mh434
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Re: Show Chrome GL1500 Heated Grips

Post by Mh434 » Thu Jun 08, 2017 4:58 pm

Yep - it WAS Ken!! Great guy, great shop...they've never let me down in all the decades I've been going there. They do specialize in off-road bikes, but they'll bring in just about anything for you, and Ken is extremely knowledgeable about all things motorcycle.

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coldcanuk
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Re: Show Chrome GL1500 Heated Grips

Post by coldcanuk » Fri Jun 09, 2017 11:25 pm

("You could definitely have an analog potentiometer control the duty cycle of an oscillator (say a 555 timer) which would then trigger a MOSFET. That would give you infinite control. That's how I would design it, anyway.")

I found a fellow that said he could design with a potentiometer.....Just have to get my bike to him. :D

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Mh434
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Re: Show Chrome GL1500 Heated Grips

Post by Mh434 » Fri Jun 09, 2017 11:30 pm

From what little I know of electronics, it sounds like this would be the circuit diagram... :roll: :D



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Re: Show Chrome GL1500 Heated Grips

Post by Rednaxs60 » Sat Jun 10, 2017 7:53 am

Mh434 wrote:From what little I know of electronics, it sounds like this would be the circuit diagram... :roll: :D

Funniest-schematic-ever-lg.jpg
Great morning laugh - touche!!


"When you write the story of your life, don't let anyone else hold the pen"

Ernest

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