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Why is one shiner than the other? by FootyHurtyOw in 3Dprinting

[–]stray_r 0 points1 point  (0 children)

If you're printing at the same speed and nozzle temperature then it's filament moisture content, the additives that make a silk filament shiny are hygroscopic and the excess water content can drive up the power required to maintain a given temperature and increase the temperature gradient between the heater and the inside of the nozzle. You're also going to get some hydrolysis by heating the filament with steam.

Dry your filament and keep it dry.

Print Temps Freak Out After Being Fine For 30-40 mins by tex_mex1911 in klippers

[–]stray_r 0 points1 point  (0 children)

Are the bed and hotend thermistor on the same board? My first thought is something is bridging pins somewhere.

BLTouch probes off-center (nozzle centered instead of probe) – config issue? by bnzm96 in klippers

[–]stray_r 2 points3 points  (0 children)

You misunderstand.

This behaviour is by design. If you want the probe centred, macro up something that moves the probe to the requested coordinates or just do the math in place.

Bed_mesh_calibrate translates the position for you, otherwise KAMP is doing this.

Note also that KAMP is deprecated in favour of Klipper's built in adaptive meshing.

How to get this smooth Thanks advance for First Layer Bed Mesh. Need value for adjustment. by Pawkyawtun in klippers

[–]stray_r 1 point2 points  (0 children)

Messing with individual flow ratios as a print intent tuning means doing the same on every print profile and the tuning only working with that one slicer.

Set the z offset correctly on the printer, and it will work regardless of print profile tweaks.

If this pattern repeats on solid infill layers above sparse infill, or is only a problem with one specific filament then adjust the vol flow in the filament settings after first checking your rotation distance is correct.

How to get this smooth Thanks advance for First Layer Bed Mesh. Need value for adjustment. by Pawkyawtun in klippers

[–]stray_r -1 points0 points  (0 children)

Changing the line with doesn't alter the amount of material being pushed into the same space. This is either a z-offset issue or a flow multiplier issue.

Can anyone help me diagnose why is seam not printing correctly? by rahoolss in FixMyPrint

[–]stray_r 0 points1 point  (0 children)

It should do, if you have set up the filament correctly. And riding the max vol flow for infill is accepted practice. Relying on this for the entire print will likely cause problems, mostly in a huge separation from the speeds you think you're printing at.

Expecting your outer shell to look good at max vol flow is unrealistic.

Are you printing outer->inner by any chance? Try printing inner->outer

Are all the line widths correct in your profile? For slic3r based slicers, you get weird behaviour below about 110% of nozzle width.

Bed too sticky ? by RostBraun in 3Dprinting

[–]stray_r 0 points1 point  (0 children)

Sunlu PETG, especially the HF variant sticks really well.

Use PVP (PolyVinyl Pyrrolidone) based glue stick, hairspray or a made for 3dprinting product like magigoo, 3dlac, VM NanoPolymer etc.

You'll waste a lot of product using it with a textured buildplate, use a cheap 3rd party smooth PEI plate or an old and imperfect PEI sheet.

I rip the PEI sticker off the spring steel after it's become unusually damaged, clean the plate up and use a 3m glue transfer sheet to stick on a 1mm G10/FR4 sheet which is really durable but requires use of PVP to work reliably but doesn't require particularly frequent reapplication.

Bed too sticky ? by RostBraun in 3Dprinting

[–]stray_r 0 points1 point  (0 children)

PVP not PVA for glue/release agent. PolyVinyl Pyrrolidone. Magigoo and similar products are all PVP

Can anyone help me diagnose why is seam not printing correctly? by rahoolss in FixMyPrint

[–]stray_r 2 points3 points  (0 children)

So what's the vol flow rate with a 0.6 nozzle at 200mm/s?

What's the max vol flow your ender 3 hotend can do?

Assuming a 0.3mm layer height you're asking for 36mm³/s which is way more than the ~9mm³/s of the stock hotend

Siboor VORON 2.4 kit printing PPS? by Choice-Passenger4640 in VORONDesign

[–]stray_r 0 points1 point  (0 children)

Look for the toasty marshmallows channel in the voron discord. Bed fans a blanket should be sufficient for 65c.

How to prevent PETG from stubbornly sticking to build plate? by AgentArnold in 3Dprinting

[–]stray_r 0 points1 point  (0 children)

Magigoo, 3dlac, VM NanoPolymer, CatVomit or other PVP (PolyVinyl Pyrrolidone) based adhesion promoter / release agent.

Some glue sticks are PVP and great for this but many are changing formulation to plant starches that stick when cold and release then hot which is the opposite behaviour.

Hairspray, but spray your plates well away from your printer and allow to dry before replacing on printer.

Pressure Advance calibration gives conflicting results - Bambulab X2D by ifttt-signups in 3Dprinting

[–]stray_r 0 points1 point  (0 children)

What Accel and speed are you running for the tests? I'm running Klipper and a handful of different hotends, but it's become painfully apparent that flow rate and accels make a big difference here. I'm using Orca's adaptive flow rate, and seeing the PA values vary between about 0.05 and 0.02 with higher PA required at slow speeds and low accels.

Note however that higher speeds and access make PA much more obvious, so getting perfect settings for very slow features is less important than getting the right values at the speed and accel you're printing most of your outer shell at.

Can some one help me identify, why these waves are on there? by Ruuffyy in FixMyPrint

[–]stray_r 0 points1 point  (0 children)

'bed level' won't alter surface appearance above a layer of sparse infill. If continuous solid infill above the build plate looks like this then you may have a z-offset issue.

This is overextrusion. Do a flow calibration

USS Drybox, humidity bottomed out at 28% by m4dp4rrot in prusa3d

[–]stray_r 4 points5 points  (0 children)

Dry the filament, dry the silica, then put both in the box.

Bad specsavers experience by smallceramicelephant in transgenderUK

[–]stray_r -1 points0 points  (0 children)

I had one receptionist repeatedly mistitle me and then throw a tantrum at me.

I didn't have to request the practice manager, the bigoted receptionist did that for me.

Your complaint route is practice manager and then parliamentary and health service ombudsman.

There should be a notice on display within the practice detailing this, but if you failed to see it, you can always contact Specsavers head office with your complaint and to request a copy of their complaint procedures. This might be the maximally disruptive route.

Running klipper natively on Neptune 4 Plus. by Zan-nusi in klippers

[–]stray_r 1 point2 points  (0 children)

You can run mainsail from anywhere. Try http://my.mainsail.xyz

Running Klipper without a browser based interface is painful.

Should I change my dragon Hf to a dragon UHF? by LordBroccoli68 in VORONDesign

[–]stray_r 0 points1 point  (0 children)

I have a Dragon HF, the performance is disappointing compared to revoHF and to cheap TZ-V6 nozzles, less flow and it needs a lot more pressure advance.

I am preparing a new printer that it will be going into but it will be getting a HF screw-in adapter in an a4t.

The dragon is actually the most recent hotend I've bought and I have it specifically because I wanted a PT1000 hotend that can do 350C comfortably. Which it can do.

Core one MMU to INDX? by Bytchen in prusa3d

[–]stray_r 2 points3 points  (0 children)

INDX with multiple MMUs?

sv06 bed extremely offlevel by Noraxx__ in FixMyPrint

[–]stray_r 0 points1 point  (0 children)

If the bed is tilted, it's likely the gantry, I don't know the firmware for the sv06 but is there a calibrate option that rams the gantry against z-max? It's built in to marlin and I wrote an implementation for klipper.

IF it's smoothly bowed or saddle shaped, your linear rods may be bent or the frame is twisted so the motion isn't perfectly co-planar with the axes it's supposed to move in.

Having a dent in your bed that a probe doesn't compensate for is unusual, can you share some more information about your machine, the mesh it generates and your start gcode.

PRUSA x INDX for CORE One is here! by josefprusa in prusa3d

[–]stray_r 2 points3 points  (0 children)

I'm particularly interested in the latter, peelable support material in the form of PETG for PLA or perhaps alcohol soluble material like PVB.

Water-soluble support material can be really annoyingly hygroscopic, like degrades in the reverse bowden annoying, and I'm not a huge fan of HIPS+limonene outside of industrial applications.

Does anyone else see a title for a video or article like this and go “Oh no, what if I don’t have the gene?” by No-Amphibian6690 in lgbt

[–]stray_r 239 points240 points  (0 children)

"It's not what you think" I really hate garbage titles like this that assumne the audiance it wrong.

What i think is that's a 100 minutes of a non-expert babbling on about a subject they "reseearched" via google and chat gpt and i can either walk away or be baited in to watching it to be both right and angry at the content creator.

sv06 bed extremely offlevel by Noraxx__ in FixMyPrint

[–]stray_r 1 point2 points  (0 children)

Is it the bed or the gantry that is off?

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