I support Tom on Patreon and he sent out an anoucment about it. Very cool.by brotherchris - General
I just saw you and Tom will be building a hang printer together, awesome! Are you going to build version 3? Can't wait to see the video.by brotherchris - General
Very nice, this makes a lot more since. That gives some ideas on how I can make the measuring easier.by brotherchris - General
I have moved my printer to a new location. I am having a different set of problems now, but I am still working on it. I am not sure what you mean by vertical distance.by brotherchris - General
My A lines are 1710mm, but can easily be made shorter.by brotherchris - General
I am struggling with my measurements. I don't think I understand fully how it works. I get Pythagoras, but why would I need to figure out the angle? If the two lines are the same length, shouldn't that mean my mount is parallel with the axis? I am sure I am missing something. It would probably be easier for me to move my mounts to follow the calculators assumptions then to find the manual measureby brotherchris - General
Hello, Thanks for the reply. I have eeprom commented out. Chrisby brotherchris - General
A8 measures out, mine is currently set to 0.018, but all 3 axis compensate the 1000mm correctly. Next I commented out the line compensation. It doesn't change anything, the A B and C still feed out line on the way up and retract it on the way down. Not sure how that has happened. I am commenting out this line, #define EXPERIMENTAL_LINE_BUILDUP_COMPENSATION_FEATURE I have made sure all the D lby brotherchris - General
I am not sure how much more accurate I can get. I will think on it and see what I can come up with. It seems like the compensation lets the A, B and C line out to fast as it moves up. No matter what changes I make in the firmware doesn't seem to slow the compensation down.by brotherchris - General
When I move to 100 it does slack the lines, then when I move back to zero the lines are tight again. Is there anyway to troubleshoot anchor position?by brotherchris - General
I am not sure what is going on. After many many measurements and tests I have tried .0099xxxx all the way to .060 for my diameter settings. It doesn't seem to really affect the model or the line slack at all. Still starts going slack enough to make things look bad around 100mm of Z. More testing tomorrow.by brotherchris - General
I am still playing with it, I had it up to .022xxxx now I am brining it back down. Still some inconsistencies I can't figure out, but I am getting closer.by brotherchris - General
It's getting better, I am able to print about 150mm now before it starts to slack. Still tuning.by brotherchris - General
Origo, meaning 0, the center on the print bed? Because my D spool has almost no line on it at 0. Maybe I missed something, I will re-read it.by brotherchris - General
Is the 2000,2000,2000,3000 representing A B C and D, or is the 3000 total length?by brotherchris - General
The testing continues, I am running on a4988 drivers again. This model was to be 575mm tall and 100mm round. This was printed in vase mode at .75 layer height. It turned out to be 515mm high, and oval shaped. The lines did slack and I could manage it if I did G6 A-0.2B-0.2C-0.2 pretty much every 10 minutes. As the lines slack the model would get smaller, then I could bring it back out with the G6by brotherchris - General
Those look pretty sweet. I have just made some printed parts and set an eyelet in the top portion. Seems to be working for the D axis very well.by brotherchris - General
Have you ever played around with 3D printed fishing line eyelets? I am working on some now that use 3mm craft eyelets. Going to try and use them tomorrow.by brotherchris - General
Thanks, I am going to get some a4988's and switch back. Very interested to see how your test goes. Good luck.by brotherchris - General
The benchy is the right height. With that said, I printed the benchy with a different ramps board and a4988 drivers. Because of an "accident" I shorted out the MEGA/RAMPS and all the motor drivers. Now I am running with some drv8825 motor drivers. There is the new problem, these are set for 1/32 micro stepping. I could just double the steps in the firmware, but for the hang printer I am not suby brotherchris - General
I am continuing with testing. It seems like the printer doesn't advance up ward at the proper rate. After 100mm or so the printer will be resting on the model. Should I increase the D axis measurement number?by brotherchris - General
I am going to try again after I check all my measurements. Here is my benchy, its about 300mm long. It started out very well. I think the pausing cause the layer shift you see. By the top of the print it was pretty much just oozing plastic with no direction because the lines were so lose. Still a fun experiment. This was at 0.8 layer height. Benchy Time Lapseby brotherchris - General
It might be the PC I have it hooked to, its not a very good one. I might just have to cable it up. Also, it seems the higher the printer goes that loser the A B and C lines become. This might be from some slight miss calibration on my part. Do you run into line length changes on really large prints?by brotherchris - General
It just pauses. Then I have to hit pause, then resume and sometimes it will take off again. I think I will try a octopi setup next.by brotherchris - General
Torb, What software do you use to stream gcode to your printer? I am trying to use pronterface over Bluetooth. It keeps pausing the print. Thanks, Chrisby brotherchris - General
Thanks for the suggestion, I tired the double figure 8 and it seems to be working well.by brotherchris - General
It snapped it in half pretty much. I added some line to make the D axis longer. It looks like one of the knots failed. Once the first one failed the rest followed. Maybe some pullies wouldn't be a bad idea.by brotherchris - General
Well here is what a hang printer looks like after it snaps a fishing line and falls 8 feet on to a concrete floor. Back to square one.by brotherchris - General
HA HA HA, I did and didn't even know it! Thanks for the fix. I would love to try out a bondtech, they are a little price for me at the moment. Maybe someday I will spring for one. Anything I can do to help the project, I will.by brotherchris - General
Thanks, So, interesting that you noticed that. I had to move my C mount to 1500mm to get the calc to not say Not A Number. Anything under 1500 would cause this error. I didn't notice it until after the video was done. I didn't try to run it with these numbers, it appears to be moving well now. I thought maybe I had my mounts in such a way that caused an impossible calculation. So no clue what haby brotherchris - General