Greetings --

I recently received an additional Smart Effector (I have 2 already) and when plugging it in to existing connections, the z-probe hit doesn't register.

In my general debugging, I swapped out the new one with one of my existing Smart Extruders and there was no problem -- the Z-Probe and all electronics worked as expected.

I'm assuming that this Smart Effector is defective, but I'm told by my distributor (Filastruder) that I need to post to this forum to authorize the exchange. Are there other steps I should attempt in order to get the hardware running? I didn't have to go through it with the other ones...

Thanks in advance for your support.

Thanks to everyone for their help and suggestions! Turns out it WAS totally a mechanical issue. There was a grub screw that fell out of the stepper motor pulley on the back motor. Here are the results after adjusting!

Original in Purple, new in BLUE:

Sure -- Focusing a little closer:

I was able to wipe that area with a microfiber cloth and get 2 of the 3 to work, but the third still will not. This is the most recent one that came in June. I don't see any discernible scratches or anything, it just flashes 7 times regardless...

@Phaedrux -- On the topside (white line) or bottom side (no line)?

Greetings --

Over the past 6 months, I have purchased 3 smart effectors (ideally for quick swapping nozzle/heater block configurations).

2 of them came (purchased 6/12 and 4/26) and immediately were flashing 7 flashes out of the box and an older one (purchased 3/9/2020) started flashing 7 times yesterday after working fine since purchase.

Per the smart effector docs, I'm assuming that something is amiss with the strain gauge traces, but not sure how it would have happened with the older effectors as I am always very careful in mounting and unmounting components.

Current set up:

• Anycubic Predator (24v power supply)
• Duet 2 wifi (with PT100 daughterboard) running RR3.0
• Smart Effector (with Volcano hotend and printed fan mounts)
• Panel Due 5"

Attached are photos of the affected effectors:

Adding photos for reference here: ![IMG_7443.jpeg]
(/assets/uploads/files/1594694592247-img_4005-resized.jpeg)

@Phaedrux -- I have recently purchased a few smart effectors and without fail I have 3 of these that are flashing 7 times. I do have one that does work, so I'm pretty sure it's not anything having to do with the external set ups, but it seems strange to me that a bunch of them would have the same issue?

For reference, where are the strain gauge traces?

Thanks... Posting photos of my approach. Effector B is the "faulty" example.

I get +3.284v on both the faulty effector and the working effector.

Sorry for not being clear. The green LED doesn't flash at all (which I believe is the same LED that signifies the Z probe hit.)

But like I said, the thermistors register the proper temp, so I know that there's power going to the device and that SOME of the connections are working.

So I have already commissioned the printer with another smart effector. I shouldn't have to change my settings right?

But to be clear, step 5 is where things fail. While I don't even get the LED to signal a successful startup, the thermistor registers the correct temp, so I know it's getting power and some things are working.

It's when I tap on the hot end and don't get the green light that I'm sure to have failed...

If I immediately unplug the faulty smart effector and replace it with another one, it works just fine. Same thermistor, hot end, heat sink, etc.