Re: [CAD_CAM_EDM_DRO] Robotic Arm

Mark Vaughan wrote:

> Actually the oven would be the easiest thing to make, they say it’s all very
> hi tech, but as you know from your delonghi the technology is minimal. My
> conveyer oven does have a few safety issues, like the plug to the fans is a
> microphone connector with 240V on it, and live pins. My only complaint is
> the gap isn’t high enough to get a pizza through.
>
> I looked at an oven on ebay the other day, it went for £20, I was very
> tempted until I discovered it was 5m long, 3m wide and draws 50 amps on each
> of three phases. But for others that are interested there are box table top
> ovens for sale from China starting at around a thousand bucks ($).

Yup, I am planning on making a 3-zone oven for production. I am
afraid the toaster oven, with cool-down time, will not be able
to keep up with the P&P machine. I am first planning on doing
one side at a time, and the capacitors on the back are going to
go on mighty quick. Maybe 30 seconds a board.

I've already figured out a conveyor strategy, using miniature
roller chain pulled through guides on each side. I'd make
little frames to hold the boards by the edges, with bars to span
the width of the heating plates and hook onto the chain.

The commercial ovens are REALLY wide, for those huge circuit
panels the hi-volume makers use. I'd make one that could
accomodate maybe a 7" wide board. I doubt I'll ever do anything
where both dimensions are that big.

Jon