Joker inspired MP3DP

This topic contains 216 replies, has 8 voices, and was last updated by  Jeffeb3 2 years, 2 months ago.

Viewing 30 posts - 61 through 90 (of 217 total)
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  • #37108

    Mmmfishtacos
    Participant

    Well I got the berd air kit in the mail today. This pump looks so much larger than their photos on their website. It’s bigger than the rambo. I’m going to have to figure out a good way to mount this thing. I was hopping to put it under the bed or on the side with the rambo, but it’s too big for either location.

    #37335

    Mmmfishtacos
    Participant

    Man this thing is going to be clean when I get done with it.

     

    Only one small problem. I have to turn the pump up to 250% to really get it running correctly. Slic3r doesn’t let you set the fan speed that high.  And there’s next to nothing online about it. Any body got any Ideas?

    #37349

    Jeffeb3
    Participant

    250%? What do you mean? 250 in the LCD is out of 255, I think… It’s been a while since I looked at it. So that might be 99%. Can you have slic3r do 100% all the time, and see if the fan comes on?

    Also, just generally how do you have that set up? Are you saying you have it powered from the fan port? I wonder if it’s power supply is just too smart to use PWM.  You may have to find another way to control the speed, or else just get only on or off.

    #37355

    Mmmfishtacos
    Participant

    I have it on fan port 2. And yes 250 on the lcd I assumed it was percent. I havent tried to run it from s3d or slicer yet.  After 3 ot 4 attempts i finally have a mount for the pump. I should be able to do a test print tonight.

    #37527

    Mmmfishtacos
    Participant

    Ryan, it was plugged into the T1 port. I plugged it into 2 just to see and it works. In your photos it looks like you have the heated bed on T1.

    #37548

    Mmmfishtacos
    Participant

    I’m not sure what’s going on here. I got the extruder to give me spot on 100. and when I go to print. it under extrudes all over the place. I’m having a whole bunch of issues.

    Also the extruder fan doesn’t come on by it’s self. I have it on fan port 1 now and I have to turn it on. Of course I have no cooling fan when I do this, not that it matter much right now. Just printing test cubes.

    #37549

    Ryan
    Keymaster

    100C for the extruder? Try doubling that for PLA, I use 195-205 depending on the brand all other filaments are even higher than that.

    The fan on the heatsink should be always on, wired directly to your 12V power port, the print fan is for PLA and blows directly on the print as it happens, where you set it to not all the time.

    #37550

    Mmmfishtacos
    Participant

    No, 100mm durring the cal test.

    I didnt directly wire it this time because i read that it can cone on automatically when it hits 50c. Its just a firmware edit.

    But i suck at this firmware thing.

    #37551

    Ryan
    Keymaster

    Have you printed my test part?

    If your calibration hits 100 then it is most certainly a slicer issue. If my part prints well it will confirm it. The setting most missed is nozzle diameter, 0.4mm. Just go through my setting page and triple check every single setting.

    #37552

    Mmmfishtacos
    Participant

    No, but ive tired slic3r and s3d. Both work on my old printer but not this one.

    #37555

    Ryan
    Keymaster

    If your extrusion test is right, then that confirms the firmware settings and the hardware. The only thing it can be is the slicer, or your stepper overheating and going into thermal shutdown but I am sure you would have noticed an incredibly hot stepper.

    #37556

    Ryan
    Keymaster

    How are you doing the extrusion test?

    The filament is set to the right diameter in the slicer?

    #37561

    Mmmfishtacos
    Participant

    I mark 100 mm on the filament. And extrude a 100. it stops right at the tube leading into the Aero, maybe slightly past it. so if anything I’m over extruding during the test just a bit. and yeah the filament is right. And its not just a little under extrusion. It’s quite dramatic, like Infill is a broken mess and perimeters don’t join.

    Using Slic3r Prusa Ed is usually my go to when S3D is giving me fits. Because it just works. but I’m seeing the same problems in both slicers.

    The good news is the square is 20 by 20 like it should be. Don’t know about z yet, I have’t let a cube finish.

    #37562

    Mmmfishtacos
    Participant

    Running the cube again to see how the stepper feels. and it’s not warm at all.

    #37563

    Ryan
    Keymaster

    I mean how are you telling it to extrude 100mm, manual gcode, lcd or repetier, simplify?

    Try the first few layers of my file to double check, it is small.

    #37564

    Ryan
    Keymaster

    If it isn’t warm at all maybe you need to boost the power to it.

    #37565

    Ryan
    Keymaster

    You can test the power by trying to pull out the filament while it is printing, it should be really tough to do.

    How fast are you printing at?

    #37566

    Mmmfishtacos
    Participant

    40 mm/s

    Something weird is going on. Now I’m failing the test. Just ran 100mm twice and didn’t make it past my first mark.

    I wonder if there is something wrong with my titian.

    #37567

    Ryan
    Keymaster

    It has a 3-1 gear ratio, I don’t think you can print that fast. Rpms that high and your torque drops off fast. If you have there stepper it is also a .9 degree so even less than the normal 1.8.

    What steps do you have in the firmware for the extruder? 837?

    #37568

    Mmmfishtacos
    Participant

    NO, 415

    From the amazon page i got the stepper from

    Short Height
    13Ncm(18.4oz.in) holding torque
    NEMA 17 bipolar 1.65″x1.65″x0.79″ 4-wire
    1.8 deg. step angle(200 steps/rev)
    Rated current 1.0A & resistance 3.5ohms

    https://www.amazon.com/gp/product/B00PNEQ79Q/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1

    Lots of success in the reviews. that’s why i got it.

    #37569

    Ryan
    Keymaster

    If you didn’t adjust the voltage on the mini rambo that stepper should be smoking hot as is.

    #37570

    Mmmfishtacos
    Participant

    Well it running cold. I didnt adjust anything but the steps. I havent run it very long. Maybe 10 layers at the longest.

    #37592

    Barry
    Participant

    Looks like your steps are off a bit.
    Snagged from E3d’s site, highlights are mine;

    Firmware Calibration
    Because Titan uses a known gearing ratio and a consistently machined drive gear, we can offer a fairly accurate steps / mm set-point.

    Steps per Unit (Extruder) = Motor Steps * Micro-stepping * Gear Ratio / (Hobb Diameter * Pi)
    Standard motor steps / rev = 400 for the new style motor or 200 for the old style motor (Refer to assembly steps if unsure which motor you have).
    Standard micro-stepping = 16x
    Gear Ratio = 3
    Hobb Diameter (Effective) = 7.3

    200 * 16 * 3 / (7.3 * 3.142) = 418.5

    400 * 16 * 3 / (7.3 * 3.142) = 837

    To test your value, mark the filament 120mm from the extruder then extrude 100mm slowly. If you do not measure 20mm after extrusion has finished, you may need to tweak this value.

    #37594

    Mmmfishtacos
    Participant

    Yeah i just check my calculator and i had 418 on it and some change. But after talking with ryan i decied to run the test again and its only putting out about 50.

    Now this was right after trying a cube and letting it run for a few layers. So its either slipping which it dosnt seem to be, its got a firm grip on the filiament, or something isnt working well with the motor. Maybe the voltage isnt right. But the motor dosent seem to get hot

    #37599

    Jeffeb3
    Participant

    An error in the z could also cause problems, because it would be trying to fill a space that’s twice as big.

    #37624

    Mmmfishtacos
    Participant

    Well it’s something that’s happening after the motor has been running for a little bit. I ran the test again cold. Passed, Ran it again. Passed. Started printing a block. Let it run maybe 10 layers. Stopped ran the test again, failed, under extruded by more than 50mm.

    #37625

    Ryan
    Keymaster

    Try this I think it is still too high but it is half the power to that tiny little z stepper. It should at least print longer until the heat kicks in.

    #37629

    Mmmfishtacos
    Participant

    Thanks, Seems to be working now. I was looking at the section of the firmware and couldn’t figure out which one was the extruder and then I wan’t sure what to set it too.

    Is it just my machine? But I had to change the steps for everything and e and z are backwards.

    * Default Axis Steps Per Unit (steps/mm)
    * Override with M92
    * X, Y, Z, E0 [, E1[, E2[, E3[, E4]]]]
    */
    #define DEFAULT_AXIS_STEPS_PER_UNIT { 100, 100, 200, 418 } //MPCNC

    this is what I changed it to.

    #37630

    Ryan
    Keymaster

    That looks right, you made those changes to the firmware one post above? (Sorry I forgot to change the steps, I was more worried about you smoking that stepper.

    #37631

    Mmmfishtacos
    Participant

    Yeah, My cube came out 10mm to small. Opps. Look like that z needs to be 400…

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