Idlers and Pulleys all freely rotating, clean and moving smoothly when pushed around by hand?
Is this with or without accelerometer based input shaping?
Input shaping is on and my understanding that it is correcting for oscillations that happen due to rapid accelerations and these normally fade. These on the picture always have the same spacing no matter what speed I am printing at
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That would be quite a project to test. What I am planning to do is to print a cube across x and y and then do the same at a 45 degree angle. Hopefully this will help isolate belts from rails in all directions. Will post a picture then
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And my problem was in my printing settings. Apparently at some point I changed the order of printing walls / infill to infill first and that messed up my walls. All good now.
Another update: I just replaced V6 with a volcano heating block and ordered volcano E3D nozzlex and some thermal paste. I want to maximize my speed with a nozzle that can print abrasives but so far these nozzles were bottlenecks. Next step will be bumping 0.4 to 0.6. I will report back
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Quick update: added addressable LED lights and camera, also switched to klipper
Still can’t figure out that to replace painter tape with to hold glass bed, painters tape works surprisingly well tho.
Also, figured, painter’s tape torn by nozzle on a prime run makes great nozzle cleaning tool
Added some tool holders, too
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Looks good sounds good.
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Nice lighting! Like the diffusers/grill, saw similar on a Voron at OpenSauce. Great to see on a V1E MP3DP!
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I had to design my own grills/diffusers due to custom size and mounting and since I am new to CAD these printed not very well. I am not sharing since printing them is a PITA 
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Err, are those layer lines running along Z axis in this pic? Meaning that you printed these diffusers vertically with bridging well tuned? Even more impressed.
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Starting a new thread you might be interested in, Help develop the next MP3DP!?!
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@vicious1 in response to your comment about pulleys, I believe I have correct ones. I also made a video that shows how Y axis moves slightly if you watch carefully when X axis moves
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White PLA? Able to share your Cura/Prusa settings and gcode? Never printed a benchy, happy to try and see if I repro indents, curious if they’re build specific, or something to expect at the speed/settings you’re using.
2 things:
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the waviness you are seeing, could that be from the belts riding up or down on the pulleys from something in the drive train not being aligned? My front left motor will tweak a little and the belt will ride upwards on it. the undulation you see could be belt notch spacing.
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adhesive to hold a glass bed on could be as simple as some super 77 spray adhesive you can buy in a can. Spray it on the bed holder or the glass, wait for the solvent to flash off, then stick it down. Because the adhesive will be so thin, it will be difficult to get under it to pry it up. If you really want to be able to get it off, there are some foam adhesives available you can get off with sawing with fishing line, but they will sit a bit higher off the bed support and likely not heat the glass very well since the gap will be insulating.
This is what I use to hold my glass bed on…
Check the sizing, I just clicked on a random one to give you the idea. I only run 2 in the front. If I put any in the back the fan knocks them off when probing.
That’s PETG but I have the same pattern with all materials and models
I think you have a pulley that is offset, like not concentric hole, watch the pulleys as they move fast to see if you can see one wobbling.
It is one of the pulleys or idlers must be not running true. That is pretty bad.
Make sure there is no black gunk built up on any of your idlers, one of my printers did that. Lumpy bugger.
I actually replaced one of the motors that had a bent shaft. At some point I will probably order expensive E3D pulleys and belt since I can’t see anything else wrong with mine at this point. What you say makes perfect sense but I just don’t see anything with a naked eye