[Neuroscience] Re: Ideas for getting a Sutter to pull reasonable pipettes?

[Richard Vickery]

Have you tried a two stage pull?  Pull it but not so it breaks, then pull 
again.  On the last Flaming Brown I used it could pull with a different set of 
parameters on each stage.

Cheers
Richard

Bill wrote:
> Hey,
> 
> I've got a sutter P-97, Flaming/Brown, Puller. I'm using thin walled
> 1.5mm OD borosilicate glass (hHrvard glass). I've tried every
> combination of velocity, temperature and pull I can think of, and most
> of the ones in the"recipe book". The problem is the tips are too big,
> or to get the tips to a reasonable size, the tapper is so long then
> walls of the electrode are parallel by the end, and the resistance is
> massive.
> 
> I know no one can give me exact numbers, but does anyone have any
> general ideas?
> 
> Anything appriciated,
> 
> -Bill
>