[ELECTRON] Proposed new club + Arduino meet up

[Blair Thompson]

 From what I have read, they indeed do use finer pitch cable.  But 
apparently that is not the main differences.  The profile of the teeth 
on the belt aparently make a difference.  The teeth I believe have 
rounded sides which close the gap between them an the pulley.  They also 
are deeper I think.  Aparently there is another belt called GT2 that is 
better suited to reprap purposes.  I struggled to find a supplier for 
this belt though.  Then I saw the synchromesh stuff on Thingiverse.

Upshot is that as long as it's no worse than T5, GOSHG can have my 
timing belts and alu pulleys. :)

Working on the extruder right now.  It came out mostly alright though I 
had to do a little fettling.  It looks like it will work.

*We do need a hobbed bolt though... These can be bought for a few pounds 
on E-bay, but if anyone has access to some tools perhaps they would like 
to have a stab at making one?*

On 19/01/2012 21:10, Clive Mitchell wrote:
> Printers usually use a fine pitch timing style belt and get pixel
> accuracy in both directions.  I'm not sure if they use anti-backlash
> pulleys like the ones that are split in two with slight spring tension
> between them so they grip both faces of the timing belt as it passes
> over their staggered teeth.
>
> On 19 January 2012 21:00, Blair Thompson<mail at justblair.co.uk>  wrote:
>> The problem with T5 is that it is designed as a timing cable.  This means
>> that it is effective providing that it only moves in one direction.  On a
>> reprap of course switches direction on either axis constantly.  That said I
>> am getting really good quality on the T5 belt.
>
>

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