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Author Topic: Geepstar Build  (Read 1265 times)

migman

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Geepstar Build
« on: 24 September, 2011, 03:20:56 PM »
Hi All,

Well ive made a start and cut up some MDF
I was thinking it would be a nightmare to cut out the mdf peices
but i was supprised just how easy it was, I must have dropped on the right blade for the job,

So ive got a few panels put togeather and i am happy with it,  So far its been very enjoyable
aint it good when a plan comes together

I will try and link a few photos of the progress so far

http://i817.photobucket.com/albums/zz96/migman_2009/Toylander%20Geepstar/G8.jpg

http://i817.photobucket.com/albums/zz96/migman_2009/Toylander%20Geepstar/G7.jpg

http://i817.photobucket.com/albums/zz96/migman_2009/Toylander%20Geepstar/G10.jpg


Ive not had a go at puting photo links on before so sorry if it aint worked

Best Regards

Tony
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Thomasb140

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Re: Geepstar Build
« Reply #1 on: 24 September, 2011, 05:42:54 PM »
looks very good keep us posted ;)
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Jeepmadmike

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Re: Geepstar Build
« Reply #2 on: 25 September, 2011, 08:30:15 AM »
Looking good, is that just regular MDF rather than moisture resistant stuff?
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migman

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Re: Geepstar Build
« Reply #3 on: 25 September, 2011, 08:45:04 AM »
Hi Mike,

Yes its just regular mdf
its said that it will do the job as long as it is well sealed ,
Well here's hoping !!

Best Regards

Tony
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migman

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Re: Geepstar Build
« Reply #4 on: 27 September, 2011, 06:23:40 PM »
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multisync

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Re: Geepstar Build
« Reply #5 on: 27 September, 2011, 06:59:44 PM »
Hi Tony
Thats alll looking good, you seem to have a nice finish on all the edges, which is a great help in getting things to fit. Looks like its coming on well
Walter
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migman

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Re: Geepstar Build
« Reply #6 on: 27 September, 2011, 08:38:26 PM »
Hi Walter,

Thank You, I agree it is a great help with fitting when the edges are decent
And i think the way is to have a decent blade and let the saw do the work and not push it
too hard, All of which you are aware of better than I am,

And i must say its good to get comments from the experts such as yourself and other experienced builders
on this forum.

Thank You

Best Regards
Tony
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migman

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Re: Geepstar Build
« Reply #7 on: 28 September, 2011, 07:27:05 PM »
Hi All,

I am using the transaxle & motor and all electronics from a DMA MERITS 4MPH Mobility scooter
The original wheels/tyres are 200x50  with the circumference of 60cm
I intend using the 15" wheels and tyres from Richard,
I recon i will need 14 tooth sprockets on the transaxle and and 18 tooth sprockets
on the wheels to keep the speed approx 4 MPH

Can anyone confirm or dismiss these sprocket sizes

Thank you

Best Regards

Tony
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Jeepmadmike

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Re: Geepstar Build
« Reply #8 on: 28 September, 2011, 08:12:32 PM »
If my brain is working this evening

200x3.142=628mm

15"x25.4=381mm

381x3.142=1197mm

1197/628=1.9 therefore you need 1.9:1 reduction

So if the wheels Richard supplies come with 18 tooth sprockets you will need a 9 tooth sprocket on the transaxle (2:1 reduction)
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migman

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Re: Geepstar Build
« Reply #9 on: 28 September, 2011, 08:30:45 PM »
Hi Mike,

Thank You for your advise on the sprockets,

Maths was never my hot spot and it would have been a miracle if i had got it right  LOL
so that's 18 tooth on wheels and 9 transaxle,

Thanks Again

Best Regards Tony
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multisync

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Re: Geepstar Build
« Reply #10 on: 28 September, 2011, 08:34:49 PM »
Hi Tony
What Mike says is spot on!
As I see it you originally had wheels of 60 cm circumference, thats 60 divided by 2.54 or about 24 inches.
Richards wheels are 15 inch, thats 15 times 3.142, or 47 inch circumference.
So in round figures your new wheels are twice the size so must run at half the speed. Metric or Imperial the results are the same
QED
Walter
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Jeepmadmike

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Re: Geepstar Build
« Reply #11 on: 28 September, 2011, 08:36:03 PM »
That's it 18tooth on the wheel and 9 on the transaxle

But a 9 tooth sprocket is very little....you might have to move up to a 10 or 11........... But that will gear it up a bit
« Last Edit: 28 September, 2011, 08:41:17 PM by Jeepmadmike »
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migman

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Re: Geepstar Build
« Reply #12 on: 28 September, 2011, 09:35:43 PM »
Hi Walter / Mike,

Thanks again, As you say i think i will move up to  11 tooth as the transaxle as 15mm output shafts
and so i should be able to get an 11 tooth with enough boss to machine to fit the shafts , If that makes sense.

Best Regards Tony
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migman

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Re: Geepstar Build
« Reply #13 on: 11 October, 2011, 05:09:52 PM »
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cheeky-m

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Re: Geepstar Build
« Reply #14 on: 11 October, 2011, 08:26:46 PM »
The build looks like it is coming along nicely. Have you had any problems up to now?
I'm going to build a TL1 aas soon as I get home from work. Hoping to have it finished for christmas.... fingers crossed :)
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