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I run my 'experimental' printer at home on top of a cast iron stove surrounded by concrete floor/walls.
by
Andrew Diehl
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General
I switch between PLA and ABS on a daily basis without incident. I think problems people are having are more to do with bad nozzle temperature regulation than anything else.
by
Andrew Diehl
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General
Open SOURCE means the program the design was made in. NOT what program is most accessible to everyone. It is not the designer's problem if YOU aren't willing to spend the $$ to use what they have provided.
For example, all CAD requires a computer, but if I am too broke to buy a computer, I wouldn't dare bitch at someone releasing their .scad files instead of printing me physical dimensioned blue
by
Andrew Diehl
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General
What you want is a multibody part.
When you extrude a part there is a little check box that says "merge"
If you un-check it, that extrusion becomes it's own separate body.
Look up multibody part tutorials and it should become fairly obvious how it works. You can even copy, add, subtract and combine those bodies to do some really cool stuff that would otherwise be very complicated.
When you
by
Andrew Diehl
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General
The thing I dislike most about Thingiverse is the lack of source files. A .stl file is NOT a true source file 99.9% of the time. That needs to be made more clear to up-loaders.
Also, sort files by source type (solidworks, eagle, iges, sketchup, etc) and rank files based on "hackability" (variety and availability of source files maybe?)
Additionally, provide a button to download all files ass
by
Andrew Diehl
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General
W need a "if you post here you are implying participation" disclaimer
by
Andrew Diehl
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Competitions
I like how he lies on the page that Makerbot HAS to be open source because they use other people's designs. Not even close to true for the hardware. While they borrow ideas like everybody else, the actual designs are original to the best of my knowledge.
If this is successful, I wonder if future Makerbots will remain open source?
by
Andrew Diehl
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General
Bah! Sorry I forgot to check up on this!
Bruce is the official winner with excellent bridging and quality, and simple no-hardware-required solution to the layer cooling.
Congratulations!
by
Andrew Diehl
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Competitions
Chances are, something else is the issue.
Maybe your heat bed is not regulating temperature properly (loose connection on the thermistor, poor contact, draft)
Maybe the first layer height is not remaining constant. surprisingly small changes in the 'squish' of the first layer can make a big difference in part adhesion. Check your endstops perhaps.
by
Andrew Diehl
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General
I just remove the heat shrink entirely. Would fit fit in 2mm no problem that way.
by
Andrew Diehl
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General
I would buy a cheaper one with fiberglass insulation more like this
by
Andrew Diehl
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General
I can print Parts in PLA or ABS for $10/hr. + Shipping. All materials included.
Part build envelope is 7x7x7in, ABS parts should be smaller then 5x5x5in to prevent warping issues, but there may be exceptions based on part geometry.
Layer heights of 0.125mm 0.17mm and 0.25mm are standard, as well as 100%, 33% and 10% Fill.
A variety of colors are available, and special colors may be possible
by
Andrew Diehl
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Job Shop: I make stuff!
The problem with a mill is it requires a lot more work to make all but the simplest parts. Changing tool heads, re-orienting parts, setting up zeroes, etc. Reprap is a LOT easier for people who don't have lots of experience working with machine tools. Sure, an experienced machinist can make parts on a mill better than a reprap can, but compare a newbie with a mill to a newbie with a 3d printer an
by
Andrew Diehl
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General
I haven't heard from Greg, so I'm going to go ahead and post another competition here to get things going again.
I made this a while ago, and it is both cool to have lying around and a challenge for bridging! Good luck!
by
Andrew Diehl
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Competitions
@nophead, it's been a long time since I've used SF. If you put the machine acceleration settings into the slicer, it's reasonable it could compute the 'actual' print time. Surprised it hasn't been implemented yet, actually.
by
Andrew Diehl
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General
How accurate is SF's machine time estimate? Does it include the acceleration of the machine?
by
Andrew Diehl
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General
I do a lot of projects for people, mostly business related. ie: prototype housings, linkages, proof of concept, etc.
I charge a flat hourly rate, which I calculated based on average material usage, power consumption, machine wear, etc. I go straight off the time predicted by the slicer +20% for loading filament, removing any little bits of support, boxing parts, etc.
We have a very high (95%)
by
Andrew Diehl
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General
Quality can be a heck of a lot better than the picture on the left. Depends a lot on the printer and your patience though.
Check out the threads in the competition forum to see a bunch of prints from folks who have mostly dialed in their printers.
http://forums.reprap.org/read.php?282,139442 for example
by
Andrew Diehl
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General
I use 75C for PLA. Hotter than most it seems.
by
Andrew Diehl
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Competitions
Also, PLA sticks perfectly fine to A clean glass bed. Also seems to stick pretty well to the slurry.
by
Andrew Diehl
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Competitions
Lots of experimentation has taught me not to mess with the .4mm extrusion width under most circumstances. I use it from .3-.1mm layer heights with great success.
Julio Wrote:
-------------------------------------------------------
> Andrew Diehl Wrote:
> --------------------------------------------------
> -----
>
> > I use 36in of 1.75mm filament dissolved in 2oz
> of
&
by
Andrew Diehl
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Competitions
Greg Frost wins this week. Congratulations! I admit i would have liked to see more entries with the support, but such is life :p
The one I printed was using KISSlicer PRO, using 1.75mm Nuclear Green ABS.
I use 36in of 1.75mm filament dissolved in 2oz of Acetone to make a slurry, spread a thin coat on the bed while cold. Works wonderfully.
96% of the support came off really easily, the last b
by
Andrew Diehl
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Competitions
My own attempts turned out pretty well. The thin edges certainly caused some issues though.
by
Andrew Diehl
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Competitions
> Hi Andrew,
>
> Well done on the win, very nice print indeed. Were
> all the colours done in PLA or is it ABS?
> The yellow looks like PLA but I can't tell with
> the other ones.
>
> I would try to print the Quadcopter blade, but I
> usually hate Support structure, but then again
> this is a printing competition, so maybe we can
> all learn a thing or too about
by
Andrew Diehl
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Competitions
This week's competition is a propeller blade, as a test of thin features and support structure
The files can be found here with different orientations.
The parts will be judged functionality.
by
Andrew Diehl
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Competitions
Thanks!
So, I need an opinion before deciding on this next competition.
Too hard?
by
Andrew Diehl
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Competitions
Within the firmware you can set the acceleration values (Well at least in Marlin)
By a 1cm melt zone, I mean there is no more than 1cm worth of filament that is molten in the nozzle at one time. A short melt zone inhibits really ridiculous flow rates, but gives excellent precision when stopping/starting.
I forgot to mention, the threads are really loose on mine as well.
Thanks for the commen
by
Andrew Diehl
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Competitions
Hey Greg,
Combination of everything. Relatively fast acceleration (for a non-bowden bot) of 2500mm/s, .35mm nozzle, 1cm melt zone on the extruder, .5mm retracts at 15mm/s.
KISSlicer does each island individually before moving onto the next.
by
Andrew Diehl
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Competitions
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Pages: 12345