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  #1  
Old Fri 07 August 2009, 01:15
KenC
Just call me: Ken
 
Klang
Malaysia
Customized Gas Spring

Found a local vendor who can supply customised gaspring in small quantity. as small as 1 unit. :-)

He is quoting me US$40 a pop
with choice of mounting as well

Now, what will be the dream physical dimension and spec of this gas spring?

I am be willing to organise a group buy for the benifit of fellow MM builders.

Last edited by KenC; Fri 07 August 2009 at 01:31..
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  #2  
Old Fri 07 August 2009, 02:07
KenC
Just call me: Ken
 
Klang
Malaysia
Attached is the .rar of the gas spring dimension form,

the vendor wrote me this,

Hi Ken,

You can delete those data in the from and fill in yours....we left those data there so that you can have an idea what info we need to build the gas spring for you.

If you need other mounting type(eg L-plate), kindly speficy details.
Attached Files
File Type: rar Gas Spring form.rar (9.0 KB, 117 views)

Last edited by KenC; Fri 07 August 2009 at 02:31..
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  #3  
Old Fri 07 August 2009, 05:13
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
Ken, that spreadsheet doesn't read nicely at all.
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  #4  
Old Fri 07 August 2009, 07:49
KenC
Just call me: Ken
 
Klang
Malaysia
OK,
I'll try to redraw what I understand from it.

Cheers

Ken
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  #5  
Old Fri 07 August 2009, 08:59
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
I am interested to see;
- the major outside diameter (max of 22mm will fit)
- the diam and length of the threads at the ends (I presume both male ends)
- lengths measured from the shoulders of those threads

Regarding the charge pressure, realise that some guys use heavy spindles, others light routers, so there won't be one specification for everybody.

The price of $40 is not attractive - we also have them made to spec in Cape Town (also one at a time) and the price is about $12 - $15 each
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  #6  
Old Fri 07 August 2009, 12:03
KenC
Just call me: Ken
 
Klang
Malaysia
Thanks for the heads up Gerald.

Anyhow, this is the last component on my shopping list which I hope to find a local supplier, at least I know where to buy an expensive gas spring now.
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  #7  
Old Fri 07 August 2009, 13:05
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
Ken, our gas spring suppliers are linked to auto spare parts shops. These springs are common on tailgates (the big folding up doors) on the back of hatchback cars and small trucks/busses. The spares shops keep some uncharged ones in stock and then charge with nitrogen gas to a specific load (kilogram) requirement. The charging device is ridiculously simple (and cheap). I think you could find less expensive springs if you shop around some more.
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  #8  
Old Fri 07 August 2009, 23:42
KenC
Just call me: Ken
 
Klang
Malaysia
I guess I didn't look hard enough.
thanks for the lead.
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