3D printing forums

I'm sure there are some people crazier than you or me out there who are working on that exact thing.   Crazy thought I just had: could you make something with as perfect a corner as possible, about equal with your layer height (as long as that's thinner than how far the nozzle) stick it on your bed precisely in position and make the filament use that as a mould for the corners? Although I guess that would only work for a layer or two, tops... maybe not the most practical idea. But hey, I'm trying!   We're awesome people making awesome things. Of course we're amazing, and we get collectively more amazing as people learn how to do things like you are!

Hello,   So the noise still persists to me also. I would like to mention the following: - Core 1 - CC 0.4 new - Core 2 - BB 0.4 new (tried with Aa 0.4 the same result)  - Nozzles clean - Build plate leveled and cleaned - Weirs are correctly positioned and no damage - Lift switch calibration calibrated - Tested with front fan plugged and unplugged, no difference in noise - Fan bracket alignment correct Noise level 30-60     

Here are the latest updates on this case. yesterday I replaced the Z-Nut and did a testprint. Sadly this did not solve the problem. Strange thing is, the lines are getting clearer and clearer after each attempt of making the Z-Movement smoother. they are now +- 4.3 mm appart from each other.  The new linear Z bearings arrived also yesterday. So this will be the next step. Is there a guide on how to replace them? As it looks, the bearings are pressed into the bed so the risk on damaging something is high on my oppinion. Any guidance is appriciated. 

I watched two great videos on 'pressure advance' aka 'linear advance' after watching videos on setting up Sonic Pad. And it seems the corner will have a radius of some significant amount. This would be a tip diameter of 0.2 mm or less in a perfect world (I imagine), or if I added a little more speed relative to the extrusion rate and temperature maybe the longitudinal axis can be stretched out a bit — by fifty percent? OR, perhaps I can machine a square orifice "tip" as the final step in the extrusion, attach a plate to a 0.4 mm tip — in a more perfect world, and get 90° corners down to 0.001 mm radii (at like 350°C 450 mm/sec).    I'm night-dreaming. 😹  I'm printing the Sonic Pad test tower stl now. The printing is very quiet but it takes at least ten hours to complete (if nothing goes wrong). I'm waiting and I will probably have to print 1 - 4 more over the next few days if I'm going to be doing any crazy stuff.    Thanks for all your help on this. I think I'm on the right track, the 3D printing community is amazing!    

It would really help if you could share your Cura project file (.3mf, in Cura get it ready to print then go to File > Save Project). At least knowing what printer you have would help 🙂   I'm not sure if you're using the term "purge tower" correctly 😕 A purge tower is what a multi-extruder printer prints in a corner usually to get the new extruder ready when before it starts printing with it. It's completely there for function and doesn't matter if it looks like crap.   I'd be very surprised if your nozzle was able to grab or push the model with such force as to move the print bed (unless the magnetic force from the bed is so weak it couldn't even hold a paperclip). Skipping a step or two on the motor when it hits a blob is something which might be possible if you don't have your belt tensioned correctly.   You might also want to check your setting for Travel > Retraction Extra Prime Amount: if it's retracted the filament, that makes it push a bit more than was retracted out to make sure there's enough pressure in the nozzle that it can start extruding as soon as soon as it's supposed to, but it can also result in overextrusion. I've never needed it, but it really depends on the printer (and you're more likely to need a little bit if you've got a Bowden extruder just because of how long it takes the filament to react to changes). Also if Travel > Retract at Layer Change is on, it'll be doing that every layer, and if it's overextruding a bit that effect can sort of build up.   Without a project file or anything to go on it's really hard to try and make informed suggestions.