temperature towers?
So, I am really really new to 3D printing, and purchased the Mk2 with the MM upgrade (actually it was a present from my wife), upon recommendation of a friend.
As I am trying to learn about 3D printing, I realize maybe I should have stayed with the single head version of this printer as the MM adds a lot of complication.
I am currently trying to learn how to print temperature towers to calibrate different filaments. I am finding that this is rather problematic with the MM Prusa because Simplify3D doesn't really work directly with this printer (with the MM upgrade). I wish I had known that before spending $150 on S3D. In all my digging, it does not appear that Slic3r Prusa edition allows one to set nozzle temps by layer. Correct me if I am wrong and please point me to how to do it if possible.
So, my question is twofold:
1. Is there a simple solution to generate and print temperature towers to calibrate filaments loaded in any or all 4 extruders? If not, is there an easy way to set up a temperature tower (assume I am starting with STL files from Thingiverse) for just the first extruder? Maybe via S3D and using the Prusa in "single mode"?
2. In another thread in here a user has posted a temperature test cube that works on one extruder, but he suggests editing the gcode to make it work on multiple extruders. I need someone to point me to a noob way to learn how to edit gcode, and learn how to set extruders and nozzle temps in gcode.
The amount of info on the web is a bit overwhelming, so I am struggling to find where to start.
Thanks.
Andrew Grover “Evil isn’t the real threat to the world. Stupid is just as destructive as Evil, maybe more so, and it’s a hell of a lot more common. What we really need is a crusade against Stupid.…
Re: temperature towers?
Not really answering your questions, but helping you to get 150 $ back 🙂 . It seems that Simplify3D has a two weeks return policy, please see their website if it hasn't been two weeks already.
Re: temperature towers?
Download PJRs temp tower from the blockage thread. The file already has temperature changes corresponding to increasing height, you can determine the temperature simply by measuring the block. He explains it there.
The gcode changes are simple: Your extruders are T0 to T3 from left to right. All you have to do is search&replace all instances of T0 with your extruder of choice in the gcode. You can just keep a file ready for each extruder.
Re: temperature towers?
I'm just starting to explore S3D myself. Up to this point I really like it. I believe you can do what you want with the "Process" settings. Personally I have not gotten to the point of using multiple process settings in a single print yet so I am not sure.
Hope that helps,
Neal
Re: temperature towers?
I've been working on getting Simplify3D working with the MMU. There is a python utility called filaswitch ( https://github.com/spegelius/filaswitch )that auto generates a purge tower and does filament switching. I wrote some modifications for use with the the Prusa MMU (checkout the cfgfiles branch: https://github.com/spegelius/filaswitch/tree/cfgfiles) . It is pretty straight forward: just duplicate a process 4 times (there is a template process in hw_config directory) and set the appropriate extruder and model for each.
Re: temperature towers?
I haven't tested this with MMU specific g-code, but I wrote it a while ago for doing stuff just like this. It requires having python 3 on your computer (free), but it just goes over the Gcode and finds the layer changes at a given increment (I think every 20 mm?) and adjusts the temperature by a couple degrees. The code is here: https://github.com/jexoteric/tempChange Play with it at your own risk. It also works with z-hop enabled which is what I trying to accomplish that most other programs at the time didn't do.