Electric conversion: Project ForkenSwiift - Page 38 - Fuelly Forums

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Old 01-18-2007, 12:55 PM   #371
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Yes, good eye! Gotta love peer review.

I'll update and post drawing version 2.1.

(SilveredWings - we're having version conflicts with the drawings. )
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Old 01-18-2007, 02:21 PM   #372
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Old 01-18-2007, 04:44 PM   #373
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Yes, good eye! Gotta love peer review.
...and open source.

Quote:
I'll update and post drawing version 2.1.

(SilveredWings - we're having version conflicts with the drawings. )
quick, better get a source control system.
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Old 01-21-2007, 09:48 AM   #374
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Ah memories of cannibalizing old TV sets. If you go with a used one, make sure you get a linear taper and not an audio (logarithmic) taper pot.

OK, if I understand the potentiometer conundrum, the Curtis uses a 0 - 5K ohm variable resistor (the center and one end of a pot.), and the forklift controller came with a ~23K ohm pot. From your photos, it looks like a common part:


a single-turn, linear-taper, 1/4" shaft carbon potentiometer rated at 1 Watt (without a built-in switch I assume). Don't put an underrated part in or you might smoke pot .

Anyway, if you can't get the exact length shaft, you can always go over-size and cut it to fit (usu. aluminum).

So, which controller are you going to be using?
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Old 01-21-2007, 10:08 AM   #375
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The forklift pot is interesting. With a jumper wire (short) connected between the 2 ends of the resistor, the 0-23k pot acts as a 0-6-0 k pot - meaning resistance is highest with the wiper centered between the 2 ends and drops as you turn it either way from center.
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Old 01-21-2007, 10:12 AM   #376
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Tidbit: the 2 Youtube videos of the motor spin-up have been collectively viewed over 2000 times. Apparently there's a healthy interest in conversion info.

And Project ForkenSwift is inspiring other people. Check this out:

Quote:
I’m taking inspiration from http://www.forkenswift.com/ as a low-budget conversion. That’s a good model to start on for us as we will be learning much along the way – so mistakes won’t be so costly!
http://www.43things.com/people/progr...rschaq/6037794
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Old 01-21-2007, 10:13 AM   #377
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PS - get the fuel pump installed?
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Old 01-21-2007, 10:19 AM   #378
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...working on it, thanks.

Edit: no really, I am.
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Old 01-21-2007, 10:31 AM   #379
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Originally Posted by MetroMPG View Post
Tidbit: the 2 Youtube videos of the motor spin-up have been collectively viewed over 2000 times. Apparently there's a healthy interest in conversion info.

And Project ForkenSwift is inspiring other people. Check this out:

http://www.43things.com/people/progr...rschaq/6037794
Kudos for the Kudos. It's a really great project!
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Old 01-21-2007, 01:56 PM   #380
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PS - get the fuel pump installed?
It's in and tested! If I hadn't spilled a little gas it would have been perfect. (news flash: I'm not perfect )
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