Electronics Forum | Thu Jun 09 22:52:16 EDT 2022 | cirsol
Thanks for you reply. I ended up finding a CD that contained them. Our S25 has developed an electrical fault. We've had to take it out of service.
Electronics Forum | Fri Jun 10 17:55:16 EDT 2022 | jdengler
Generally we overprint on the exposed part of these pads. When there isn't enough clearance at the end of the pad we place solder preforms with the placement machine. Jerry
Electronics Forum | Fri Jun 10 19:02:57 EDT 2022 | llawrence
Yes they are far from ideal. What do you mean by profiling on the problem leads? And yes there is a lack of solder on some, but there are no vias in or near any of the pads that could be stealing solder
Electronics Forum | Fri Jun 10 19:05:23 EDT 2022 | llawrence
Overprint, that is putting extra solder on with the stencil that is even further out from the pads, with the idea that it will suck that solder up during reflow? I could give that a try. Are there any general recommendations when overprinting? And wh
Electronics Forum | Fri Jun 10 23:24:02 EDT 2022 | llawrence
Ah okay, that should be pretty easy to do on the current board design. If overprinting doesn't work, then I might try a preform. I wasn't even aware that was a thing, I might be able to do some of our through-hole components that way if they are rate
Electronics Forum | Sun Jun 12 01:44:59 EDT 2022 | mikevb
I forgot to mention that I've measured and adjusted the cog play on the x axis and so it is within range, if that applies.
Electronics Forum | Mon Jun 13 12:52:33 EDT 2022 | leeg1
Has the part not got a pad underneath and therefore the flow up the castellated side doesn't have to be as crucial?
Electronics Forum | Mon Jun 13 15:27:15 EDT 2022 | llawrence
No there are no pads except for the castellated ones on the side. These boards are being used on agricultural machinery though so a less than ideal solder joint would likely be prone to failure over time
Electronics Forum | Tue Jun 14 14:59:13 EDT 2022 | glasscake
I made an app to take in Altium data and an export from our PNP software that creates two separate CSV files then uses win-merge to compare differences. This can be done manually as well.
Electronics Forum | Wed Jun 15 19:46:15 EDT 2022 | mikevb
Hey All. I figured it out. It turns out that the problem was simply a loose coupler on the x wagon motor transducer. I had only checked one screw in the past but the other screw was apparently loose as well.