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The following idea is published under the LRC licence, it is free for all personal use
For commercial use, who owns the license, the concept outlined has been around for at
least 15 years to my knowledge.
by
johnrpm
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General
This post was a genuine attempt for a simple solution to a complex problem, I tihink if some thought was put into it, it could
work, but this has largely been ignored.
johnrpm Wrote:
-------------------------------------------------------
> As I said before, I am more than happy to share
> with fellow tinkeres and experimenters, but not
> with someone who just wants to make money.
>
by
johnrpm
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General
How about improving this one? All the means required are here, you "just" have to show your ideals actually work better than the commercial-centric approach.
No point trying, as you already stated that reprap is mainly shop keepers
To achieve this, you'd likely have to get rid of all the shops and their owners, first. The sole purpose of running a shop is to make money. Regardless wether it's o
by
johnrpm
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General
My estimate is, you're one of very few. No objection with this, I'd like to do development, only, too. But I had to decide wether I wanted to do RepRap stuff 100% or another job and only 10% RepRap. My choice was the former.
Well this confirms I am naive, I thought this was a place to share ideas and create something, not a collection of business people, I suppose I had better look
for a commun
by
johnrpm
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General
Our views of the reprap community must be very different, or is it just me who is not running a shop?.
Traumflug Wrote:
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> QuoteAs I said before, I am more than happy to
> share with fellow tinkeres and experimenters, but
> not with someone who just wants to make
> money.
>
> To achieve this, you'd likely have to get rid o
by
johnrpm
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General
As I said before, I am more than happy to share with fellow tinkeres and experimenters, but not with someone who just wants to make money.
therefore, this may be a naive idea, but why not have an area of the wiki for NC, clearly stated as such, developers can choose to post their work
in the gpl or nc area.
I am the first to admit that I have not thought this through fully, and it may not work.
by
johnrpm
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General
I feel a right burk, the stl files are all about 27k, right clicked them and selected save as, so tried a different
stl file and it worked, both orient.py and reorient.py, so it was my fault, although I can not see how else to
download them.
So sorry to waste your time
Edit, it seems that it works with ascii but not binary files, unless its me again.
by
johnrpm
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Developers
Sorry still getting the same error, (edited it in geany) am I missing a module ?.
Processing: prism.stl
Traceback (most recent call last):
File "orient.py", line 209, in
s=solid(sname)
File "orient.py", line 71, in __init__
data=struct.unpack("12f1H",f.read(50))
struct.error: unpack requires a string argument of length 50
P.S no rush if you are busy.
by
johnrpm
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Developers
python 2.7.3 on linuxlite, an ubuntu derivative.
Edit, perhaps I am missing a python module ??.
Hmmmm Tilt-n-Twirl.
by
johnrpm
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Developers
thanks for doing this, as far as I know their is no auto orientation software, but I may be wrong.
Edit, getting this error message, am I doing something stupid?, Hmmmm tilt&twirl.
Processing: prism.stl
Traceback (most recent call last):
File "orient.py", line 209, in
s=solid(sname)
File "orient.py", line 71, in __init__
data=struct.unpack("ffffffffffffH",f.read(50))
struct.err
by
johnrpm
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Developers
This is a proposal for a semi-commercial engineering organisation - i.e. partly commercial and partly non-commercial. A broader aim is that it will provide a stronger integration of the open-source movement on the one hand and anyone interested in a reciprocal (or ‘non-commercial’) economy on the other.
Bobc, I do not read it that way, it apperars to be a wider context, but that is just a quess
by
johnrpm
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General
One mechanical nozzle movement for each droplet? That's quite a bit.
yes, but it can handle high viscosity, also the frequency can be high, material dependant of course.
by
johnrpm
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Plastic Extruder Working Group
Approx 25 years ago I made a co-fibre extruder, it premade the fillament though, the 3d printer needed a flying cutter to cut the fibre under the nozzle,
I had to build the extruder, then build the 3d printer, in those days stepper motor boards and software were not off the shelf.
it was a very interesting project.
by
johnrpm
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Wire and Thread Embedded Extrusion
A small bench top injection moulder is not difficult to make, a friend of mine made one years ago, a drill press could be modified, tooling may be more of an issue.
by
johnrpm
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Plastic Extruder Working Group
this is a similar concept to the first air brush patent in around 1900 by pasch, (not sure of spelling), and similar to something I have been working on,
(on and off) for a while, the polymer forms discrete spheres, (maybe for the salke of the video), metal spheres welded together have also been mentioned on the forum.
so nothing new under the sun, we have no shortage of ideas, but a lack of dev
by
johnrpm
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Plastic Extruder Working Group
Yes 120v is dangerous, but you could use a stepup transformer to give the volts but not the amps. it should work at a lower voltage, but for wax
he may have needed the extra.
please keep us informed and add to the wiki page or start you own.
by
johnrpm
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Powder Printing and Selective Laser Sintering
Don't know how I missed this, excellent stuff, he is printing hot wax.
his circuit looks good to me, but electronics experts would give a better opinion, no mames but the previous poster comes to mind.
by
johnrpm
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Powder Printing and Selective Laser Sintering
could you use the standard output from slic3r, it would give a template to work to ???.
by
johnrpm
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General
Looks like a sensor, how would you use it ???, I am working on a deposition head that may deposit many materials, if I get it working I will publish the whole thing, but its not woking yet.
by
johnrpm
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Powder Printing and Selective Laser Sintering
snip> and we should understand how to make it work
I hoped that bobc would expand a bit on this as I value his input, I get the feeling that amongst other issues
makerbot going closed source etc, the community has not yet found its place in the world, if people become
dissilusioned we could loose some people who could make a difference, I must admit that I do not feel that
everything in the
by
johnrpm
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General
NormandC
I use linuxlite, the best operating system in the world, ubuntu based.
you have sold freecad to me, I shall install tonight.
by
johnrpm
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General
Who would have thought that people would be additced to telephones and social media, takes all sorts.
by
johnrpm
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General
bobc, exactly what I was thinking, I did try designspark pcb, but decided I was being lulled into
something.
by
johnrpm
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General
Not sure if this is of interest, self hosted.
by
johnrpm
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General
vegasloki wrote
The market for 3D printers including Reprap type printers has changed from one of developers to one of consumers
I think their is more than a little truth in this, but a vast amount of development is needed to achieve self replication, and if that is to happen we need a lot of people to become active developers and not just users.
by
johnrpm
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General
A question for the laser experts,not about engravers but,
As slow progress is made on my DLP 3dprinter, I am now thinking of different light sources,
the plan is to have interchangable "lamps" including a 405nm laser, can anyone advise me on
a goog one to buy, preferably with driver, and the optics needed (I assume) to defocus the spot
into the light gate, will I need a beam expander?.
I unders
by
johnrpm
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Laser Cutter Working Group
bobc wrote
Open Source really is a radical way of thinking about how IP is owned and used, which most people are not used to, and uncomfortable with. However, it does actually seem to work, and we should understand how to make it work, rather than take the lazy path and bastardize it to turn it back into the closed source model we are familiar with.
Thanks for the explanation, i genuinly am try
by
johnrpm
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General
Maybe when this license thing is resolved and the community agree on a way forward, if anyone
abuses the license they will be black balled, and the fear of this may be enough, otherwise if lawyers get involved the cost of defending would need an overseeing organisation which in turn would need funding.
Example, fur coats were every womans dream, until the cruelty campainers made it moraly unacce
by
johnrpm
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General
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Pages: 12345