we don’t officially support this scenario.
What I’m going to suggest might result in some broken nozzles.
I’m not sure why it takes a long time to generate the plan that step goes through all the selected toolpaths and creates a big list of all the commands we need to send to the printer. This is done after you hit START because that’s when I know you’ve committed to the current set of selected toolpaths. As for the slowness, my best guess would be the circular shapes, which generate lots of tiny lines.
(@freezedream, that should answer your questions)
print the circuit (panel) in phases. That is, select one quarter of the panel, print it, then select the next quarter. If that doesn’t work, try selecting fewer features in each phase. Obviously, this is not as good as clicking START once (and grabbing a coffee)
I really like @cborn’s idea of a soft rubber pad. A damp sponge might work too (damp, meaning, not dry and does not drip). You can send commands to the printer from the console to lower the dispenser to the pad/sponge – hit alt-c to open the console. while connected to the printer, type ‘V?’ to list the standard commands, you will want V1 (absolute move) and V2 (relative move), V0 will output the current location (but it’s echoed often enough that you can just read it from the output). I suggest using the probe to experiment with these commands, once comfortable, you the dispenser. – The idea would be that you enter a command to lower the dispenser into the sponge after the calibration step, when you hit start in the dispense step the plan will generate while your tip is safely in the sponge… the first command in a dispense plan is ‘raise to max height’, so the nozzle should exit the sponge before heading to the board.
I like the sponge since it seems easier to find and requires less precision when figuring out the height to lower to.
If you try this let me know how it goes. I like hacking the v-one, you never know, a feature might pop out.