Has time flown that quickly? I thought I'd just recently posted the pics of the Streamer PCB & DevDAC
Its been very busy...
The new reflow oven arrived to replace the useless underpowered larger oven I'd bought to handle VFET sized PCB's... the ovens tiny - but wil handle DevDAC, Streamer, Detox and maybe MDAC2.
For VFET and FDAC I'll have to purchase a larger oven - certainly a professional unit not this temporary Mickey Mouse affair!
To use the oven hardware and software modifications are required - I'd performed these only to discover the oven had a fault with its temperature sense circuits (I'd not tested it before the modifications) - it took a few days to resolve the issue (poor Chinese design)! I then need to wait for the components to arrive to modify the oven's design.
One of the modifications is to remove Masking tape used everywhere internally (which burns and smells during use) with Kapton tape:-
https://www.dropbox.com/s/ypzd8ij6y47xlxb/Oven Kapton tape.JPG?dl=0
I've not yet characterised the ovens reflow profile (and thus optimised the reflow curve for our PCB's) - but during Ramp tests the oven is in a different league to the larger useless oven:-
https://www.dropbox.com/s/2n6s2x79kgybmu3/Oven Profile.JPG?dl=0
During these week I'll be running a batch of PCB's - so lets see how it goes.
We are in the process of updating the MDAC2 streamer PCB and DevDAC design, I hope to issue the PCB files to China this week (to manufacture bare PCB's for production here in CZ) - we will order 12 Pcs. of each, two for internal use and 10 for the first PFM testers.
To add to my workload, both of our cars have died so I have to get atleast one going so that Renata can get to Uni.. just what I need at this time...