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You really don't need the calipers. Just adjust the Z offset until the first layer looks nice and solid.
by
Andrew Diehl
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General
This is different, unfortunately.
I've gone so far as to set the residency to .1s and hysteresis to 50deg.
The residency time counter never even triggers, just stays at ? forever.
by
Andrew Diehl
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General
I've been having some variation of the same M109 bug for months. I'm currently bribing someone to fix it.
by
Andrew Diehl
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General
Looks like you are .05-.1mm too high off the print bed.
by
Andrew Diehl
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General
a) put the Z jerk to 0. This won't help much but it will help.
b) reduce the XY jerk to 7-10 and you might be able to have a larger than 900mm/s acceleration. Also, your default acceleration value should be lower or equal to the max acceleration values for XY. (ie: 900)
I have no idea why there is only one value for default acceleration and 4 values for max acceleration....
by
Andrew Diehl
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General
a) That looks like a servo arm, not a stepper arm. Makes controlling it a lot harder, and outside the realm of expertise for most of the reprappers
b) Dynamic accuracy is more important than static accuracy. Most arms have poor dynamic performance, even though they can be fairly accurate when still.
Possible to convert to a printer? Probably.
Realistically? Not without massive effort.
by
Andrew Diehl
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General
Depends on the type of flux. If it's organic (water based) use soapy water and a toothbrush, let dry well. Distilled water is ideal but 99.9% of the time regular tap water will work fine too.
If it's rosin flux, use isopropyl and a toothbrush, and let dry well.
Heat sink compound can be conductive. (and so can organic flux, for that matter) and should never be touching the leads of a chip li
by
Andrew Diehl
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General
Sooo, looks like somebody never cleaned the flux off the driver chips?
by
Andrew Diehl
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General
I'm 95% sure they use the same plastic supplier as Makerbot and Ultimachine.
by
Andrew Diehl
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General
That isn't true. I've kept my business interests out of the equation.
If you look at the machines I build, they are quite far removed from what the aforementioned 'standard' machine is shaping up to be. The only similarity is I use marlin and pronterface.
I'm in this because when I first wanted to build a reprap it was extremely confusing, and I find enjoyment in improving things.
Unrelated
by
Andrew Diehl
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Developers
at 5in^3/hr (more than triple the typical value) it will take over 16 days to print the object.
With existing software there is no way to restart the print from it's point of failure if it fails (kinked filament, power loss, comm error, running out of filament, clogged nozzle, etc) You will need to modify it appropriately and likely have some form of power backup.
I will reiterate my doubts a
by
Andrew Diehl
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Wanted
I apologize, I had the word standard on my mind. I meant Stable :p
by
Andrew Diehl
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Developers
I really like the "Latest Stable Build" nomenclature.
by
Andrew Diehl
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Developers
God forbid someone comes along and finds there is a well documented and simple place to start.
Who are YOU to say we can't call something a 'standard' machine. We're not claiming it is "official" by the way, only that a group of users came together, looked at what was happening around the community, and thought; " Hey! This looks like the most common thing going on right now, lets make it easi
by
Andrew Diehl
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Developers
How big of a part were you printing?
by
Andrew Diehl
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Reprappers
Also, an output for the extruder heater!
by
Andrew Diehl
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Developers
I just tried with painting on a saturated sugar solution at 110C (let evaporate), then print
I got very poor results.
by
Andrew Diehl
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Reprappers
Actually, aluminum is a better conductor than brass by 30-50%
by
Andrew Diehl
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General
The same material break away support actually works quite well with good settings.
by
Andrew Diehl
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General
That looks pretty shallow/dull, and could certainly be your problem.
by
Andrew Diehl
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General
Standards are always useful.
Since I've iterated a few designs over the months a surprising number of minor (though important) design decisions are purely arbitrary. Having some standard simplifies those decisions, and also makes things more compatible.
by
Andrew Diehl
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Developers
Small steps.
Some people won't research what it takes to get one going no matter what. At least this way they might get something up to date and workable with as little hassle (to us and them) as possible.
by
Andrew Diehl
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Developers
Buback Wrote:
-------------------------------------------------------
> So for a rough surface, you need an intermediary
> that fills the cracks on one side, and bonds to
> the plastic on the other.
DING!
This is why abs/acetone solution on frosted/sandblasted glass works so well. The dissolved ABS bonds into all the nooks and crannies of the glass, and then when ABS is printed on it
by
Andrew Diehl
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Polymer Working Group
Ramps also appears to be the most widely available, and is more modular (less likely to fry everything at once for a newb)
I think marlin should be the firmware. The look ahead makes all the difference in the world as far as print quality/speed, and it's been working reliably (for me anyway) for a couple months.
Ramps/Marlin also are the only combo to have preliminary support for dual extruder
by
Andrew Diehl
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Developers
That all looks pretty good to me as a reasonable starting combination of cost/quality/tried and true/most common. (at least based upon forum comments I've seen over the last few months)
What would make this perfect is if once we agree on a 'basic" model we can include a complete set of files for it in a single place. All the stl's, marlin (configured for the specific ramps, hotend, etc) pronterf
by
Andrew Diehl
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Developers
Forgive me for being skeptical when very little information is given about an advertisement posted in the general forum. As of now I don't even see a mention as to of the printer being open source (only a few of the components it uses?) I will praise them when they contribute, but so far they have used the general section as free advertising. There is a for sale forum for that.
If there is some
by
Andrew Diehl
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Reprappers
Open source software – means huge support base available on the Internet
I guess that means you won't be providing support?
by
Andrew Diehl
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Reprappers
This is the same poor quality Chinese filament I've been seeing pop up everywhere lately.
by
Andrew Diehl
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For Sale
Well there goes my simple idea :p
I was thinking if 1/4in layers were acceptable, you could use a large format laser cutter to produce the "layers" with internal alignment guides for steel bars. It would allow very large and moderately precise parts with just a laser cutter and some software.
See the link for a good example:
All the current plastic deposition methods we use have expensive ma
by
Andrew Diehl
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Wanted