Day 2 of using my H2D after running an X1C for two years. I’ve printed lots of ASA and the heated chamber is awesome – both the bed and the chamber heat quickly. No shrinkage, lifting off the plate, or smells! I could smell the ASA on the X1C.
One downside but total user error – I have already disassembled the tool head to remove a piece of PLA from the extruder gear. I loaded some PLA right after an ASA print finished – make sure you let the system cool down before moving to a lower temp filament.
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No noise from my silicone/rubber feet. Check for PTFE tube smacking something. There is a print area and printing motion that makes a clicking noise with the PTFE tube. It is very rare for me, luckily, Bambu attempt to quiet most edge cases with the tape on the top inside right works well.
I have found one major annoyance with the H2D. Every time it starts a print it make a high pitched sound for 10 to 30 seconds. Any ideas where this sound is coming from and how to stop it?
Yeah I checked all that. Confirmed it comes from the bottom of the printer. When I manually wiggle the printer the sound is there. To me it sounds like the adhesive for the feet is unsticking and then sticking. That’s the best way to describe it. Only issue is mustering the courage to flip the printer over and double check it’s all tight 
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Doublecheck that you haven’t blocked any of the automatic louvres. I can imagine if there is a blockage on top or in the rear, that it may have a sound like that.
I just checked all the louvers and manually activated each of the fans- No noise from any of them. Thanks for the suggestion.
I’ll never understand how people can pay $100 for the vision encoder and not print a simple before and after calibration cube. I mean seems like everyone just gets it and prints on it and is either like “uh I think it work” or “I’m not sure”.
I mean Jeeze just print a calibration cube before and after, then measure it with calipers. Is that so difficult?
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I would imagine that during manufacturing they are all calibrated with the plate, so the before/after might not show you much.
There’s a checkbox that supposedly turns the calibration on and off. But still to this day, I’m not seeing any real benefit. I did tons of before and after, along with several tests with calibration on and off, and the difference still look slightly worse with the calibration. Again, not by much, and many would probably consider the difference to be within normal variance, but I’m not finding the value of using it.
I was championing the reason for the cost, but after I got it… it would surprise me to see it really match the level of accuracy they claim it’s made to give. Just looking down the sheet, there are lots of ripples and there no way a camera can use it for that level of accuracy. Not sure a lidar sweep can do that either. Maybe the ripples mean I got a bad sheet… don’t know, but I’m not impressed.
Is this happening during the calibration cycles? If so, what is it doing when it makes the noise.
It happens just after the print file is sent to the printer while the print head and print bed are moving.
Only weird sound I get is from the ams 2
Easy check for the feet would be setting it on pieces of paper and seeing if the sound goes away.
That sounds like maybe you didn’t peel off protective sheet from the vision encoder, the blacks should be rich and dark, and there should be no ripples or fog or anything once the sheet is removed, it should be extremely crisp
I didn’t think of it and to be honest your opinion of where and what I would spend $100 on could not matter less to me. If I’m seeing quality prints and I feel its partially because of the vision encoder than I’m happy to have bought it whether I get my calipers out or not.
LOL, actually I spent 10 minutes asking myself if that should be peeled off or not. I finally decided it shouldn’t be there and peeled it. Unfortunately, the rippling was still present (although there was a difference). I’m considering bumping up the bed temps to 55-60C and see if they stay. But the literature suggests this probably shouldn’t be done. So, we’ll see, but in all honesty, I wasn’t expecting much from it anyway. Just thought I had to try.
Oh dang, looks like you might’ve gotten a bad one, that sucks. Here’s what mine looks like at an angle
I don’t think it’s going to do much for anyone right now, it’s not been long enough. The VEP is to be used quarterly or monthly depending on usage to keep things calibrated long term. I would like to see numbers before and after calibration after 6 months of heavy usage (say 2500 hours or so, around 11-12 hours printing a day), I think that would give a better representation of what it can do
