[saurabhmalani]

I see, you are right the 90 degree angle does add some concerns. In your paper, in the supplementary Figure S13 (Image Link: https://ibb.co/bJZptgr), if you still recall haha, how did you get that data? Did you use a ‘scattering’ solution of sorts like you suggest or was it just the naive readout of an empty reactor? If this data was collected from just an empty reactor, perhaps that may indeed be sufficient enough to give a decent calibration, though you’re right that using a scattering solution would likely be more rigorous.

[saurabhmalani]

Ah, goodness. Is there any way I can fix it short of requesting a full replacement from LabMaker? I may have access to 3D printers near me.

[saurabhmalani]

The height of the reactor assembly without the feet is 112.9mm !

I’ll try different stir bars too. Do you have any suggestions for which kinds have worked best in your experience with regards to shape?

[saurabhmalani]

I have sometimes experienced stalling with stirring too, my reactor is v1.2, is this version supposed to have had the stirring issue rectified?

[saurabhmalani]

Hi Harrison,

If I start without the reactor, then connect reactor, then scan devices, I can do things like change set points, I can measure OD and get a reasonable value. I can click ‘switch’on the LED and the app does not crash, though I actually do not observe the LED turning on (though if I’m able to measure a OD, clearly the LED must have been turning on?)

I only have one reactor and one pump board, I was hoping to get some good data from it to justify getting the full complement of 8 reactors.

I’ve used different micro USB cables, I don’t ~ seem ~ to see anything amiss in the electronics at the bottom of the pump board.

The pumps have worked well for two runs, aside from some intermittent “Failed Pumps Comms” that usually seems to quickly resolve automatically.

Also – another thing that I’m not sure if it’s relevant to this issue, when I plug in the reactor to the power supply, the heat plate immediately starts heating up even before an experiment is started (i.e. no temperature target is set), not sure if it’s remembering the setting from a previous run, but it gets pretty hot – is this normal behavior?

I’ve dropped LabMaker an email too about this.

[saurabhmalani]

Hi Harrison,

I’m facing the exact same issue as Timo. I was running the reactor well for 4 days, it occasionally threw a “Failed Pumps Comms” message intermittently but otherwise worked fine. Now, it does not start at all.

If I do bash cb.sh without the reactor connected, it loads and I can look up the GUI at 192.168.7.2:5000. I can connect the reactor then click Scan Device, my reactor pops up. I can change all the parameters, including pump rates, but if I click “Start Experiment”, or click ‘Switch’ on any pump, it instantly throws 11 Failed Pumps Comms messages and crashes.

If I do bash cb.sh with the reactor connected, it immediately crashes with the same 11 Failed Pumps Comms messages.

There was no spill in the reactor, but I cleaned the moisture sensing tracks with ethanol for good measure anyway, but to no avail.

I’ve tried multiple ports for the reactor but same thing.

I have the latest software installed, including the latest ones from the github repo.

What can I do further?

[Author]

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