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Printing issues ...
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I have just done a re-install with skeinforge selected in order to get a screenshot, but it would appear that the error only occurred on a virgin PC - i.e. this time it went through the skeinforge install OK..
The first time earlier this evening, (several tries actually), it started the download phase for the install files, but failed with the "cannot create file skeinforgeall.zip" error, and t
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nb99
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Repetier
Just installed repetier host 1.06 on a a 64 bit Win 8.1 PC - new PC, first install of repetier on this machine
Selected to include skeinforge, and it stopped with an error "cannot create file skeinforgeall.zip" ??
I had to back out, and re-install w/o skeinforge.. it did that without hiccup. ( I tried "Run as admin" on the installer - no better)
That would be a really useful facili
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nb99
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Repetier
I've been printing these models successfully for some weeks, 2.8mm PLA on a simple blue tape on glass bed, unheated. ( Prusa mendel, 3mm J-head)
This is the way it is supposed to look These are going to be used as focal points in a high-stakes fundraising campaign being run by a local Knight (I kid you not, checkout medicinemondiale.org , Infant Incubator )
Last night - they started cr
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nb99
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Printing
Well - the gcode shows 0.1mm layers, with an apparent 0.2mm lift for moves,
up to a model height of 1 mm
You would have to include the STL for any further comment on whether this makes sense or not.
I found that Z backlash made Lift pointless on my Prusa. It would not return from the lift height back to the current print height, leading to a nice plastic rendition of a kittens ball of wool.
.
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nb99
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Slic3r
I still use Slic3r for most of my work - but I've recently become a born-again skeinforge fan,
doing some models with gentle underside curves and thin sides which Slic3r had no show of creating usable support for. (no control over support density)
Also when trying 0.1mm layer height, a raft plus a single interface layer takes a lot of the pain out of getting the bed level enough for that botto
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nb99
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General
James Wilson is not the only TV persona hiding in Nelson,
how about Wolfgang West !
Well done getting reprap into the public eye !
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nb99
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New Zealand RepRap User Group
When Slic3r produces support material, most of the 'blocks' of support gcode start with a pair of extrusion moves which try to put filament in the same space.
Is there any likelihood this has a purpose?
( I had a problem viewing the support in Repetier host, and he located this issue )
Move to X1,Y1
Extrude to X2,Y2
Extrude back to X1,Y1
---------------------------------
G1 X66.939 Y98.450 F6
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nb99
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Slic3r
Jolly good.
I shall mention the questionable gcode in the slic3r forum...
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nb99
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Repetier
I'm fairly sure this is more a repetier problem than skeinforge/SFACT... putting config files under whatever the current STL folder is.
e.g. if I have loaded into Repetier host "W:\MySTLs\Part_one\part_one.stl"
and then from "Slicer / Skeinforge configuration", I alter the default skeinforge profile e.g. change the default layer height from 0.4 to 0.3,
it stores all the files (skeinfor
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nb99
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Repetier
It does generate support - BUT - it's got a ways to go....
I've found that it either doesn't kick in until the angle is way past 45 degs - i.e I sliced an inverted 1/2 cylinder and it only put support under the very center,
or too early and too much,
another part - bit like a turtle-shell, it put so much honeycomb support that it was impossible to clean it out without destroying the part.
I
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nb99
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Slic3r
Two extra pieces of info:
I reinstalled v0.50 - displays support perfectly at all zoom levels. (and presumably it pick s up the same settings from the registry)
So it's only in 0.51
If in 0.51 I select fine or ultra-fine "Filament Visualisation" I can zoom in much closer before it explodes.
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nb99
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Repetier
I've had very consistent results with Vik Olliver's Diamond Age filament, very broad range of colours too... (and because he tends to chuck in a semi-random free sample with each order I've been able to see a lot of the colours 'in the flesh' (so to speak))
DiamondAge
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nb99
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General
1.5K resistor would be fine at 12 v - just a bit less current and a slightly dimmer light.
1K at 12 v, minus the approx 2v LED forward voltage means 10 mA though the LED. 1.5K would give 6.7 mA
Your average small LEDS can handle 20 to 30 mA max, so .the resistance value is chosen large enough as Andrew points out to avoid exceeding that, while small enough to give usable brightness. 6-1
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nb99
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General
gcode attached.
3D dialogue box refuses to screenshot, so registry section below.
I added whatever else I thought might be vaguely relevant.
Note that setting the slicer to skeinforge, on the same half-cylinder with support, and the visualisation behaves normally. Can zoom right in.
Also, with the Slic3r support that does display wrong, the streaks disappear if you zoom far enough out, but t
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nb99
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Repetier
I recommend you stick with the 1 paper thickness bed levelling, and use a slicer parameter to experiment with nozzle to bed distance, that's what I do,
saves fiddling with the bed every trial.
And keeping the Z-home at the smallest easily measurable height gives you most flexibility to experiment (real handy plain paper being 0.1mm)
The slicers I use ( Slic3r and skeinforge) default to putting
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nb99
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General
Cool - that would address the issue exactly...
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nb99
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Repetier
QuoteAfter any long print, I tend to naturally hit Home-All
I should have put it " After any long print is complete and I have removed the part(s)"
From a high Z position - it takes quite a while for the threaded rod drive to get the head back down to zero, so I want to kick off the home action then, when I'm about to take those parts off and do cleanup or whatever, not have to wait for it at
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nb99
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Repetier
Quote300mm/s and normally it goes like 150mm/s
You might have an exceptional machine, but it might be worth also trying it at something like 40 mm/s, then working it back up til you find its max working speed.
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nb99
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General
Slic3r 7.2 has produced support for me - but there is pretty much nothing in the way of options, and on the relatively delicate part I have been printing today, the honeycomb support was too dense and impossible to remove cleanly.
For this job I have had to dust off skeinforge - which allows you to select the overhang angle to start supporting at, and the density of support. It behaved like you
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nb99
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General
A flaw of the Mendell triangular frame design is that after a tall object print, an X-home causes the X carriage stepper to crash into the frame.
I have Repetier host + Repetier firmware, and a Home-All from the Host executes an X-home first.
If it did Z-home first, or even Y-home then Z-home before X-home (to clear anything on the bed before the Z-home) it would avoid this.
After any long
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nb99
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Repetier
The Repetier host title bar shows the current object file - how about making it show the currently selected slicer config as well.
( It's a fairly under-utilised display area. )
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nb99
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Repetier
After slicing the attached 1/2 cylinder hafl-cyl-40.stl with internal Slic3r with support enabled, in 3d view the support structure looks a bit like the "go to warp" visual from StarTrek the movie - i.e. it has streaks to the edge of the viewport.
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nb99
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Repetier
The V2 simply has a bunch of minor improvements on the component designs - like making clamps a little stronger etc
Probably most significant would be allowing for metal linear bearings instead of plastic ones.
Mine was a"V2" set of plastic parts when I got them end of last year.
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nb99
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Reprappers
I love the J-head ( which I got via nelsonrap) - the worst of my reprap frustrations vanished the day I installed it, some months ago now.
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nb99
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Reprappers
Quote(splay) axes of the arm hinges .. close .. sink
Interesting... I shall try some modelling...
Now - yes, the self-holding aspect of a worm drive has great merit - as well as providing the torque increase in a shorter space than my long driven gear arm.
I see a number of printable worms on thingiverse, but I have a concern about the smoothness of thread achievable,
so I guess the obvious c
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nb99
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Robots!
Monitoring the current is a good idea, and if it gives a repeatable result then as well as being significantly cheaper than force sensors, it will double as protection.
(5c current sense resistor instead of a several dollar FSR - using the same atmega A2D input )
In the spirit of low(ish) costs made more possible with the reprap, I'd like to be able to come up with a system that manages to keep
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nb99
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Robots!
A prime reason for my starting my Prusa build several months ago was the potential ease of prototyping robot bits.
Having got the Prusa fairly reliable I've now made some initial progress on my Grand Design.
(love the process - a thought, some sketching, followed by an hour in OpenSCAD, 50 cents of plastic and 30-60 minutes later you have the part in your hand
First object is an experimental g
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nb99
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Robots!
Quote Go to Tempertaure->Continuus monitoring->Extruder 1
OK - that seems to be the magic instruction (doesn't seem to have made it into the help....)
That's fixed it.
thanks
nb
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nb99
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Repetier
QuoteThe heater power seems to works. It needs a firmware sending the power along with the temperature after a M105 c
I am using Repetier firmware.
Yesterday - I updated the host to 0.50. The prior host was one with the separate temperature screen - and it was showing heater power on/off perfectly.
I did not touch anything on the firmware, but now no heater power display.
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nb99
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Repetier
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