My Second build (in progress)
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@Dad003 said in My Second build (in progress):
but the tubing couldn't make the bend
Eventually, a spring over the tube helps against kinking?
But this works only, when the tube isn't to stiff. -
@cosmowave I didn't think of that .
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swapped my 3d printed bed base for some basic aluminum parts , they are a bit crude lol i have limited tool at my hand for that but they will be good enough .
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@Dad003 That looks like a piece of cast tooling plate. That means it is flat. 3 points define a plane, not 4, so trying to tram with 4 screws is not a great idea.
You might want to look into a kinematic mount for that bed plate. As it heats it will expand. That means something is going to have to flex and that means it will shift out of tram. A kinematic mount has 3 bed support points and just two tramming adjustments. It allows the bed to expand without causing anything to flex so doesn't go out of tram.
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@mrehorstdmd it a voron 8mm thick plate , and I will use a glass bed on top I don't think it will warp much to make any issue , time will tell anyways
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z axis belt have been put in , and the pulley ratio are doing their job well , bed is not dropping free working as intended . just waiting for the expansion board showing up in the mail to finish wiring , and organizing the last few wiring . with a bit of luck i might be able to test print this monster next week-end , still need to enclosed this things but it not my priority right now that for a later stage
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got the lED light and heated bed and heated chamber heater plugged
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@droftarts danm autocorrect lol
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So got the expansion board up and running ,
Just need to work out a few sensor and the config and then i can put the xy axis belt on and fill up that water loop hopefully this weekend
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wiring is all done , basically only things left is to go throw the config and make sure axis and limit switch are good , need to replace some of the 3d printed gantry to aluminum , added an extra thermistor that will monitor temp of the gantry between both watercooled hotend and extruder . tested the cpap fan and it work even at 5% and it feel stronger than most fan ive tried before at that level , cant wait to test that baby at 100% lol were we come with speed run benchy lol
just need to dremel it a bit to get it closer of the 3d printed part and clean it a bit , might be a bit crude but him not worried about that lol
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Had to redesign some part , there was a few issue but i might have this thing going today ! Reprinted a few part overnights , and hopefully they fix the problem then I only need to fill up the water loop .
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So now I need to calibrate things a bit more but I ended up doing it quick I wanted to test print lol
So far it seem the single 2020 were the z axis rail is, is not stiff enough and make the bed shake a bit , so I will need to had Some reinforcement to stiffen that . Need to work on my klicky dock as well . test printed with some old PLA that i had laying around ,
current setting in config is :
; Axes
M584 X0.0:0.1:0.2 Y0.4:0.5:0.3 Z1.1:1.2 ; set axis mapping
M350 X16 Y16 Z16 I1 ; configure microstepping with interpolation
M906 X2400 Y2400 Z1200 ; set axis driver currents
M92 X80 Y80 Z2560 ; configure steps per mm
M208 X10:205 Y-40:200 Z0:300 ; set minimum and maximum axis limits
M566 X900 Y900 Z100 ; set maximum instantaneous speed changes (mm/min)
M203 X90000 Y90000 Z500 ; set maximum speeds (mm/min)
M201 X20000 Y20000 Z500 ; set accelerations (mm/s^2)him curious to see how far i can push this machine once i fix the last few things
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so a bit rough looking and lots of stringing from the old pla but not the worst benchy ive ever seen since it on an untuned machine , lots of stringing lol
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Did some further tuning , extruder is nearly fully dial , skew compensation should be bang on , z axis step seem fine , just need to reinforce the z axis and we should all be set for more printing test .
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Got the accelerometer working tonight and I it seem zvddd at 40-42hz was the flatest curve like.
Tomorrow I can hopefully fix the print bed shaking and keep going on those calibration and push the speed to see how far it can go -
Well adding up reinforcement on the z axis didn't seem to have fixed my issue , i think i would just have to double the linear rail and block on it , but i had some old mgn15 rail laying around and tested something , so i decided to put that rail at the front of the platform , it look at bit goody but so far it seem to have completely eliminated any wobbling of the print bed . platform goes up and down without any problem , so i think him gonna test this a bit more and see how to it goes . before i order any more rail for this
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I had my bed being lifted at three points, so as to allow auto leveling.
I used steppers with integral planetary gearboxes. He are most of the parts related to the Z axis. It is quite simple, to my way of thinking.
Regards, Frederick
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@fcwilt yea , my goal was to keep it simple with only one axis to power the bed , I always run a bed mesh before print so bed leveling doesn't need to be 100% perfect , him just testing things out .
