[chbot] Another parts problem :(

[Richard Jones]

How about using chain for your drum drive? Available from either old
bicycle chain or old garage door opener chain complete with matching cogs?
I have some old bicycles you could use, but sadly disposed of a door opener
just a couple of weeks ago.

Richard

On Wed, Feb 4, 2015 at 10:59 PM, Robin Gilks <robin at gilks.org> wrote:

> Greetings all
>
> And so the saga of the walnut washer continues. Last Monday, 121kg of
> galvanised steel arrived - 24m of 40x40 2mm wall, 16m of 40x40 3mm wall
> and 8m of 25x25 2.5mm wall square tube. I managed to scrounge up half a
> metre of 50x50 to fit inside the brush, mount the axle and fit the drawer
> bar coupling from a local company.
>
> With the addition of an old trailer axle, it now looks like this.
>    http://gilks.ath.cx/gallery/index.php/Nuts/IMG_3459
>
> Three things left to do
>  * mount the controller in such a way as it can be easily removed to keep
> out of the weather
>  * install the plywood base and pond liner for the 'sump' that supplies
> the washing water
>  * build the drive for the drum.
>
> Its the last item I need ideas on how to reduce cost.
>
> I've already determined that the way to go is to use a toothed belt
> 'in-side-out' on the drum so it becomes a large cog, being driven via
> toothed belt from a cog on the motor shaft. Adding the bits up I'm not
> going to get much change out of $500 for the 2 belts and the cog if I buy
> new from somewhere like i-trans.
>
> Does anyone know where I can get the same sorts of bit second hand (i.e.
> cheaper) - the cog will require adapting for the correct fit onto the
> motor anyway and the drum is 560mm diameter - longer than most car belts
> as far as I know.
>
> So - where do I get a couple of long belts?
>
> Cheers
>
>
> --
> Robin Gilks
> Internet: robin at gilks.org    http://www.gilks.org
> Tel:      (+64) (3) 347 4370
>
>
>
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