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RRCRat Rig Community [Unofficial]
Created by Achi447 on 12/27/2024 in #fix-my-print
First layer Perfect everything after that is garbage
Unfortunately not, I do not have a minion. When you upgraded the z-axis, did you also change the lead screw? If I remember correctly the Oldham uses a 4mm pitch lead screw while some of the older printers used 8mm pitch lead screws. In that case you would to adjust the steps/mm on z. But that should also be fairly easy to tell if you print a calibration cube, as the height would be off by a factor of 2.
19 replies
RRCRat Rig Community [Unofficial]
Created by Achi447 on 12/27/2024 in #fix-my-print
First layer Perfect everything after that is garbage
1.5 seems like a lot, usually if you need to adjust the flow more than about 10% that is a good sign that something else is wrong. Since you basically replaced everything that needs calibration on the printer I think the easiest thing would be that you just run through ellis tuning guide from start to finish and hopefully you will find the issue along the way: https://ellis3dp.com/Print-Tuning-Guide/
19 replies
RRCRat Rig Community [Unofficial]
Created by Achi447 on 12/27/2024 in #fix-my-print
First layer Perfect everything after that is garbage
Sounds like both your z offset and your flow rate are too low. If your z offset is e.g. 0.05mm off your first layer will only be 0.15mm thick instead of 0.2mm thick. That means that there is less space for the filament to occupy and a flow rate of ~75% will be enough to produce a perfect first layer. The problem arises when you get to the following layers which have the proper layer height of 0.2mm. On these there will not be enough material if your flow is at 75%. The other option is of course that your steps/mm on the z-axis are off. But since you said that you changed the hotend , extruder and z probe I think the first option is more likely.
19 replies
RRCRat Rig Community [Unofficial]
Created by Yucca on 12/15/2024 in #fix-my-print
PLA cracking on Minion but flawless on Vcore3
Looks like you are struggling with layer adhesion. Do either of your printers happen to use a rapido 2? Apparently they had a bad batch where the thermistors are approximately 20 degrees off.
7 replies
RRCRat Rig Community [Unofficial]
Created by Fabiolous on 12/5/2024 in #fix-my-print
Artifacts on top layers
Try reducing your flow rate a bit. The top of your print looks slightly over extruded to me. Depending on how your first layer currently looks you may also need to adjust the z-offset after you have done that. Otherwise it would help if you could post some more pictures of the part. There seems to be something funky going on towards the bottom of the image aswell, but I can’t really tell from the picture.
4 replies
RRCRat Rig Community [Unofficial]
Created by Dom Dell Computer on 11/24/2024 in #fix-my-print
Vcore 3.1 idex overhangs and support material
Since this is a designated support filament you can probably get away with decreasing your support z-distance and increasing the support density. These are usually set as a compromise between providing adequate support and being able to remove the support from the print again. Also if you can get away with it I would suggest a design without rounded overhangs, as those are never easy to print and you will probably spend a lot of time tuning them. Otherwise if you only care about the surface finish on the outside it may be an idea to turn the part upside down for printing so that the overhangs and supports are on the inside surfaces of the part.
3 replies
RRCRat Rig Community [Unofficial]
Created by Campapalooza on 11/24/2024 in #fix-my-print
Strange infill separation problem after pretty good first layer
Do other prints come out fine? Also, do you get the impression that the nozzle was clogged when the lines started to lift? One suspicion I have is that the quality of the first layer is the result of both the z-offset and the flow rate. That means if your z-offset is too high you can still end up with a perfect first layer if your flow rate is also too high. For example in an extreme case where your nozzle is at 0.4mm instead of 0.2mm for the first layer you could still get a perfect first layer with a flow rate of 200%. The problem starts when you get to the second layer. At that point you are trying to squeeze 0.4mm worth of material into a 0.2mm layer. Especially on larger prints that will eventually end up clogging your nozzle. If that is the case you should also be able to hear your extruder skipping steps and at that point there will no longer be enough filament coming out of the nozzle, resulting in the separated lines.
17 replies
RRCRat Rig Community [Unofficial]
Created by Teo_ on 11/24/2024 in #fix-my-print
Edge roughness on the first layer
What´s with the green stuff under the first layer? Is that tape or is that green filament that was printed with the other extruder?
4 replies
RRCRat Rig Community [Unofficial]
Created by lost on 11/20/2024 in #fix-my-printer
Extruder Temp Reading Very High
Your new hotend probably has a different kind of thermistor than your old one. You will need to update your config for the new thermistor (the rapido 2 should come with a 104NT thermistor).
134 replies
RRCRat Rig Community [Unofficial]
Created by Mikey on 11/19/2024 in #fix-my-print
Commissioning - Ripples in first layer
No description
4 replies
RRCRat Rig Community [Unofficial]
Created by Elixer on 10/28/2024 in #fix-my-print
Fillament change
If this is a small part my guess is you are running into the minimum layer time. There are few solutions to get around that: 1. Print multiple small parts at the same time 2. Slow down your printing speed 3. If your cooling solution allows it, reduce the minimum layer time
2 replies
RRCRat Rig Community [Unofficial]
Created by Nudlc on 10/27/2024 in #fix-my-print
infill/ bottomsolid infill issue
I am guessing the perimeters were printed first. That would mean that there was still room to the side where excess filament could escape without flowing up. Then when the infill came along there was no room left and you got the classic overextruded look. So you probably have a issue with your extrusion multiplier or your first layer offset. I would suggest following a tuning guide like this one: https://ellis3dp.com/Print-Tuning-Guide/
3 replies
RRCRat Rig Community [Unofficial]
Created by NastyStew on 6/21/2024 in #fix-my-printer
Auto levelling problem
What printer, z-probe and firmware are you using?
33 replies
RRCRat Rig Community [Unofficial]
Created by WarbossGork on 6/18/2024 in #fix-my-print
Reverse elephant foot
Are you able to share what the model is supposed to look like? It looks like the walls are also tapered inward toward the top, but maybe that is just distortion in the photo. My first guess would be that the extrusion multiplier is too high, which would make the top solid layers bulge out, as there are no longer any gaps in the infill where the excess material could go. At the moment however, that is just a vague guess, if you could share a photo of the top of the print and your slicer project as a .3mf file I might be able to give a better recommendation.
6 replies
RRCRat Rig Community [Unofficial]
Created by Skilless on 6/14/2024 in #fix-my-printer
wifi module
https://discord.com/channels/582187371529764864/1244660915618713663 Have a look here, basically the network tab in klipperscreen does not work in RatOS because it requires NetworkManager and RatOS does not support NetworkManager. If you scroll back in #ratos-development by ~2 weeks there was a lot of discussion about this there aswell.
4 replies
RRCRat Rig Community [Unofficial]
Created by fargo on 5/26/2024 in #fix-my-print
Internal bridging issues
Cura has a setting called "Infill wall count" that might help here, you could also try and see if adjusting the infill overalp helps. I am not sure about prusa/super slicer but in orca and bambu studio there don´t seem to be any settings that would help here. Personally I would look into why the edges are curling (print temperature, cooling, drafts, etc.), as most printers should be capable of printing the internal bridges as they are. That is probably also why most slicers don´t include a setting for adjusting this.
2 replies
RRCRat Rig Community [Unofficial]
Created by mavi - ilezirabbit on 5/13/2024 in #fix-my-print
Stringing Isue
In that case I would try with 0.1mm intervals starting at 1mm, there should be a point between where it clogs and where you get stringing. But for a direct drive extruder this range is usually quite small. Otherwise you could also try varying your retraction speed while keeping the distance at 1mm. Another thing you could try is reducing your temperature. I haven’t used esun PLA but for most PLAs 205 should be fine, so this isn’t the first thing I would try. Then again both stringing and pla clogging can be caused by printing too hot.
5 replies
RRCRat Rig Community [Unofficial]
Created by CookieJunky on 5/21/2024 in #fix-my-print
Ring on my hand ring on my print
As far as trivial things go, have you made sure that one of the grub screws on each timing pulley is tightened against the flat side of the stepper motor shaft and that all grub screws are tight? Otherwise I would suggest posting your input sharper graphs in #fix-my-resonance.
4 replies
RRCRat Rig Community [Unofficial]
Created by thenaimis on 5/21/2024 in #fix-my-print
support tuning for Bender
The ideal solution would be an IDEX/MMU system with soluble support material, but I am guessing you don´t have access to that. However, even in that case it should still be possible to tune some of the support settings to make the bottom surface look better. Personally I don´t use a lot of supports, but this guide gives a good overview of some of the settings you could try tuning: https://www.instructables.com/Best-Support-Settings-for-3D-Printing/
5 replies
RRCRat Rig Community [Unofficial]
Created by mavi - ilezirabbit on 5/13/2024 in #fix-my-print
Stringing Isue
I would try using a retraction tower to find the ideal retraction value for your printer. There is an auto tower generator plugin for cura that will create a retraction tower and automatically change the retraction settings for each value: https://marketplace.ultimaker.com/app/cura/plugins/Kartchnb/AutoTowersGenerator I would start with a tower with 1mm increments and from there go all the way down to a tower with 0.1mm increments to find the correct value.
5 replies