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That's really bad news. Repetier's products were the best offering, in my opinion, and now I have to look for something else.
Anyone working full time on free open-source software and not getting fair compensation (i.e. being employed by someone making a profit on something else) is asking for heartbreak and frustration. I thought the point of FOSS was to get community involvement, not just comp
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Chowderhead
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Repetier
I've got a salt water nano near my printer. The aquarium took a shot because I spend all my time with my printer now
I've worried about ABS fumes, too, and recently decided to migrate to 100% PLA. Have toyed with printing a protein skimmer for the aquarium, though.
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Chowderhead
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General
3mm PLA and ABS - better luck with ABS with up to 120mm/s perimeters and infill w/ 300 mm/s translations on my Prusa. Haven't been able to go too fast with PLA, yet.
0.5mm Budaschnozzle on a heavily modded Prusa.
0.35 mm J-head running 3mm Bowden on my (also modded, and still debugging) Rostock. Building a 1.75mm Airtripper Bowden that will drive a 0.35mm J-head on the Rostock this weekend.
W
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Chowderhead
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General
Nice jab.
I find the challenge of greater value than the money. Easy is rarely worth it.
Thank you Crispy1, you've helped me make up my mind. I'll stick with the original intent of RepRap and enjoy the challenge of printing my own pulleys and gears. Besides, my prints look great. I never liked store bought cookies anyway.
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Chowderhead
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General
Don't get me wrong, this all cool but it isn't answering my question:
I see the assertions regarding the value of different tooth profiles/pitches, e.g. buying 2mm pitch belt and commercial pulleys (http://www.reprap.org/wiki/Prusa and and others) instead of printed pulleys and T5, but I've not seen anything to back up the assertions.
I'm not willing to fork over the money for expensive pulle
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Chowderhead
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General
Is there really a difference between timing belt performance?
Has somebody got empirical evidence that one profile produces better prints, is more reliable or easier to work with?
Thanks!
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Chowderhead
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General
Does anyone know a way of concatenating point arrays? I have a repeating polygon that I'm presently extruding, translating and rotating, making a bunch of trivial holes along the way that force the rendered shape non-simple. I think I could avoid the holes by applying cartesian rotation to the point arrays and concatenating into one gimongous polygon.
If there's another solution, please feel fre
by
Chowderhead
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3D Design tools
It's related to filament, I think. The Wade's extruder is tearing up the filament more readily and extrusion just stops mid-print. I've played with idler tension, tried two different style hobbed bolts (the aggressive hyena-like version and the more typical hobbed style - it's worse with the hyena-style), messed with slicing settings (slowed printing, varied hotend T).
It seems to happen more fr
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Chowderhead
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Reprappers
I've gone from making stellar prints to total $#it over the past month. I can't keep filament going through the extruder to save my life. The ONLY thing that has changed is the season - it's now very humid while not being terribly much warmer.
Has anyone similar experience? If so, suggested remedies?
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Chowderhead
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Reprappers
I don't know why it increased speed, but it did. It was the only variable I changed between print attempts. Something requiring clear instruction is whether units are included when entering values or if the software interprets whole number values as percentages and decimal values as mm. The documentation isn't keeping up with the (too frequent) updates...
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Chowderhead
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Slic3r
Perhaps living up to my handle, but...
I cannot get 0.8.3 to print a good first layer. The default extrusion rate is way too slow so there's no squish and therefore no adhesion to the build surface. Tried overriding it in the advanced tab by setting First layer extrusion width to 100% - which sped up the first layer to 100% print speed and made the issue worse. Then tried 0.7mm in the same textb
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Chowderhead
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Slic3r
I ranted some earlier about "calibration" of the extruder and want to follow up. Please shoot me down or add to the discussion; I think this topic is worthy of critical scrutiny.
I now have some printing time under my belt with media of different types and from different suppliers. There's the obvious need to re "calibrate" upon changing media type (abs<>pla) and a surprising need to recal
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Chowderhead
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General
Thank you all for the explanations, never would have occured to me all that's required to control these little motors! I'm sitting here loving the music of the printer.
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Chowderhead
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General
nophead Wrote:
-------------------------------------------------------
> Absorbed moisture and other volatiles that boil
> off must reduce the filament volume slightly but
> you were getting far too much plastic, so
> something doesn't add up there.
The point is that I extruded too much plastic because I followed the calibration procedure based upon filament feedrate, hence my opini
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Chowderhead
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Printing
For what it's worth:
Ran filament feedrate calibration at 30mm/s, 60mm/s and 90mm/s generating E-steps/mm of 630, 534 and 516 respectively. Reset E-steps to 525 (mean of last two) and produced better prints, but still extruding too much. Printed the 20mm calibration box at 100% infill to verify over-extrusion. Reduced E-steps more to produce a pretty 20mm box and now the solid infill layers loo
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Chowderhead
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Printing
Really back to basics; sorry to be pedantic and/or overly simplistic:
1) Assuming there is no slip, stepper motors rotate through a given arc by firing a set number of coils sequentially regardless of the rate of acceleration?
2) Acceleration is accomplished with stepper motors by changing the frequency at which motor coils fire?
3) Slip limits acceleration?
4) Real time current draw increases w
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Chowderhead
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General
I understand that w:t isn't a calibration in the slicing program, but its calculation must rely on the volumetric flowrate calibration (approximated by filament diameter and lineal feedrate).
I think Sublime's note regarding the speed at which I calibrated the extruder is what's impacting my print quality. I think I calibrated at too slow a speed (30mm/s as I recall). I'll recalibrate at higher
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Chowderhead
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Printing
Sorry if I came across wrong, I share my opinions a little too easily, I guess.
I have nothing but respect for what you all have accomplished! This is one of the coolest things I've come across, ever. I hope I can make some sort of contribution.
Thanks for the help, I'm going to put your suggestions to work tonight!
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Chowderhead
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Printing
Sublime: I used this which I found on the calibration page in the RepRap wiki.
ttsalo: I printed several infill boxes (http://www.thingiverse.com/download:17274) from the calibration page, but it says to play with the w:t (w:h is what I called it) which I did to little effect because I felt like I was making too big adjustments. Probably because I "calibrated" extrusion following the lineal fil
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Chowderhead
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Printing
If I'm understanding right:
Acceleration improves machine reliability by managing motor torque.
Tuning acceleration is a means of increasing production rate.
So if I'm not concerned with maintaining a high production rate, I don't really need to worry about optimizing acceleration? Does print quality benfit by lower acceleration settings? I'm guessing lower acceleration reduces energy consumpti
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Chowderhead
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General
Prusa, Slic3r 0.7.0, Pronterface, Windows, 1.8 stepper w/Wade's, hobbed bolt, ABS media, Budaschnozzle w/ 0.50mm orifice
I think I followed the extruder calibration procedure correctly, but maybe blew it as I've performed it with the hotend in place and heated, so made lots of little ABS doggy piles. Ended up with an E steps of 630. Measured the filament at an average of 2.88mm diameter.
The on
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Chowderhead
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Printing
In my ongoing effort to undersand what's happening, I stuck a print under the stereomicroscope. Layer height comes in at 374 microns, pretty sweet given that I sliced it at 0.37mm.
Comments and suggestions are welcome.
The print is a Greg's Accessible Extruder with ABS through a 0.5mm nozzle at 230C.
I'll throw a print in the SEM when I get a chance and post pics. Always fun...
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Chowderhead
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General
I'm an older-timer, too and just dove into this about two months ago. It's one awesome experience to watch that first print come out and then some real frustration while flailing around trying to get it to produce consistent print quality, but I'm almost there.
I inherited a kit which was partially assembled. The hot end was the weakest part and I finally set the acorn nut and threaded barrel as
by
Chowderhead
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General
I think I have a very basic understanding of the advantages of acceleration, but I was hoping someone could elucidate it further for me and make some suggestions regarding tuning acceleration settings.
Thanks!
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Chowderhead
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General
Well, chalk this up to a violation of the KISS principle.
The issue was the x-axis pulley not being properly assembled (wrong nut) and so the pulley occasionally free wheeled. Doh!
Thanks for all the help and now I'll be starting another thread...
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Chowderhead
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General
Thanks! I'll give that shot tonight after work...
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Chowderhead
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General
Prusa, RAMPS 1.4 on a 2650 r3, Marlin, Slic3r 0.7.0, Pronterface, Windows.
I get one very nice print (in this case a footed vertex) and after clearing the build platform, try to print another with the same gcode and after 4-5 layers the whole print skews 10mm or so towards the x-axis end stop.
-or-
Every time (and I've tried at least a dozen times) I try to print an extruder, at some point the
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Chowderhead
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General
In the same boat as terramir, only older - once worked with ACAD v1.0 on a then-brand new TI 8086. Blech...
Having putzed around for a few days now, I find FreeCAD to be most promising. Shallow learning curve thus far and the most logical and easy to use interface of the lot I've tried. It's leaving some artifacts on my screen as I bumble around, but they don't persist on save and reload. Editin
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Chowderhead
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3D Design tools