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Re: Reflow Fred Style! :-)
Posted: Sun May 20, 2012 7:10 pm
by Fred
Re: Reflow Fred Style! :-)
Posted: Sun May 20, 2012 7:30 pm
by Fred
Re: Reflow Fred Style! :-)
Posted: Sun May 20, 2012 7:42 pm
by Fred
After some scratching of my head, and chatting to DeuceEFI on IRC, I realised that I had
simply been ignorant and ignored a crucial but unimportant-looking part of the schematic.
In the process my thermocouple wire got shortened a significant amount :-)
But, it was time for another test!
This was the noisy test that I posted earlier, but largely a success.
The thermocouple wire insulation showed signs of being plenty hot.
And the noise meant that I thought I'd follow the schematic even more closely and add some filtering.
Plus, the expansion forced the door partly open from about 200C up, so I fixed that too.
It must be time to control it! :-)
I don't have the rest of the pics handy right now, but I'll try to find them and do another post soon.
To be continued.... but not today! :-)
Fred.
Re: Reflow Fred Style! :-)
Posted: Thu May 24, 2012 12:18 am
by Fred
viewtopic.php?f=9&t=1621 < johntramp, now it is! :-p
Re: Reflow Fred Style! :-)
Posted: Sat Jun 02, 2012 12:38 am
by Fred
How many people bugged me about these pics? How many of those commented at all? Poor form.
Today the oven baked another tcouple IC. Tonight I have two working and tested. Tomorrow I might do some experiments!
Re: Reflow Fred Style! :-)
Posted: Sat Jun 02, 2012 4:31 am
by ToxicGumbo
Fred wrote:How many people bugged me about these pics? How many of those commented at all? Poor form.
I was skeptical about the need to insulate and double plate the unit, but you sure as hell have it down to a predictable state, which is nothing short of impressive.
You need to come up with a logo, such as:
Oops...wrong image. Maybe more like this:
Re: Reflow Fred Style! :-)
Posted: Sun Jun 10, 2012 2:02 am
by johntramp
Classic. Do you think the insulation helped much? And have you tried your slice of bread heat distribution test again with the alloy plate?
Re: Reflow Fred Style! :-)
Posted: Sun Jun 10, 2012 6:16 am
by Fred
johntramp wrote:Do you think the insulation helped much?
Yes, a LOT. You can almost touch the top and back with the inside @ 300C now. Before you couldn't get closer than about 10cm from the back - the radiated heat was too much.
johntramp wrote:And have you tried your slice of bread heat distribution test again with the alloy plate?
No, but that's a stellar idea! If we obtain another
bimbo for thorough use, I will commandeer some for this purpose.
Re: Reflow Fred Style! :-)
Posted: Wed Jun 20, 2012 2:05 am
by Spudmn
Re: Reflow Fred Style! :-)
Posted: Wed Jun 20, 2012 8:59 am
by Fred
LOL :-p
The actual link, for those wishing to short cut Aaron's trickiness ;-)
http://hobbybotics.wordpress.com/projec ... ler-v8-03/