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Re: looking for a RepRap in Denmark / Europe - 15 years ago

Kristian, I would suggest you get the Arduino pre-assembled and get your experience with the smaller, less complex parts. The Arduino is easily the most complex of all the parts involved, and the only one that is mass-produced. Having the Arduino also allows you to experiment with the machine-electronics interface without having to worry about frying your USB port or anything. -Lars

by larsrc - For Sale

Re: looking for a RepRap in Denmark / Europe - 15 years ago

I was talking about the original poster, actually.

by larsrc - For Sale

Driver PCBs wanted - 16 years ago

After failing to print 'em myself, I'm now looking to by the necessary prints for a RepStrap (minus the Arduino, which I already have) from somewhere in Europe -- shipping from the US gets me charged a ridiculous import fee. I'm willing to go in on a combined order of prints if others are in the same position. -Lars

by larsrc - Wanted

Re: looking for a RepRap in Denmark / Europe - 16 years ago

Oh hi, another Danish reprapper. I've been starting to make PCBs, but having not tried it before my experiments with toner transfer came out too awful for such a complex design. So now I'm looking into getting some printed, and wouldn't mind doing a group order to offset the starting costs. So if you want to start on the soldering level, wanna join up? -Lars

by larsrc - For Sale

Re: Etching: Speeding up with induction burners? - 16 years ago

I did use boiling water for my etching. Still took forever.

by larsrc - Controllers

Re: Etching: Speeding up with induction burners? - 16 years ago

I know that. I was pondering whether with an induction heater, you can heat the FeCl while etching, even if you have it in a plastic container that would melt/deform from ordinary heat sources.

by larsrc - Controllers

Etching: Speeding up with induction burners? - 16 years ago

When I did an etch of a very small board, it took me quite a while to get the copper off, much longer than I expected. Obviously, part of the problem was that the FeCl got too cold and didn't work very fast. It occurred to me that given the iron content, it should be possible to heat it up with an induction burner, thus speeding up the process quite a bit. Has anybody tried that? I have been wan

by larsrc - Controllers

One-sided or two-sided PCBs? - 16 years ago

I'm a little confused about the files for making PCBs. While the generic electronics build instructions talk about a "copper side", indicating that the print is one-sided, there are two "traces" files and two "silkscreen" files for each board. While I can understand silkscreening both sides, I don't get what the other "traces" file is for. The guides don't talk about the various files included, s

by larsrc - Controllers

Re: Understanding the PDFs for the PCBs - 16 years ago

The GIMP will do what you want. That is one way to do it, I suppose. I'm not too happy about getting it pixellated, but if I use high enough resolution and make d*mn sure I keep it all to scale, it could work. -Lars

by larsrc - Controllers

Understanding the PDFs for the PCBs - 16 years ago

(Gotta use them TLDs while you can Just did my first test etching, just to see how it worked. The result is here (I had to stop short on the etching as it started to snow and got dark). Result is pretty good, but before I start mass production (such as it is), I have a couple questions about the files downloadable from Sourceforge. I would like to print multiple PCBs per page of paper, is ther

by larsrc - Controllers

Re: Problems with Mac OS X software - 16 years ago

Running it from Terminal would give you more info. It should be enough to do java -jar , where is the name of your jar file (including path if you're not in the same dir).

by larsrc - RepRap Host

Re: Getting java host software to run on Leopard - 16 years ago

I had this problem also. I saw somewhere to remove the RxTx jar files in the system Java Extensions folder, and it seemed to help.

by larsrc - RepRap Host

Re: Problems with Mac OS X software - 16 years ago

I used the obsolete instructions and the modifications mentioned in this thread, and got so far as to programming my Arduino, which should be most of the work. -Lars

by larsrc - RepRap Host

Can't download schematics from sourceforge - 16 years ago

It seems that Sourceforge is having some setup problems. I've tried several different mirrors, but can't download the stepper motor schematics v 1.2. Anybody has a copy, or is there a different place to get it?

by larsrc - Controllers

Re: Problems with Mac OS X software - 16 years ago

Thank you, Robert. I hadn't noticed that. The patch posted at iharder was broken by formatting. I'm attaching a working (well, compiling at least) version.

by larsrc - RepRap Host

Re: Problems with Mac OS X software - 16 years ago

Did you get it to work? I just managed to get talking with my Arduino on a Max OS X 10.5.6. Removed the rxtx stuff that was (maybe by default, maybe from a prior install) in the Java Extensions folder, then ./configure --disable-lockfiles, edited the Makefile as per (both CFLAGS and cc -bundle lines), ran make and sudo make install, and now it works. Oh, also made myself a member of the wheel g

by larsrc - RepRap Host

Re: New builder in - 16 years ago

The cheapness is also a factor, for sure. And once I have it running, I can look at builder a RepRap proper if the speed annoys me. I'm not into this for the replication so much as for other things I could make: cake decoration, lens hoods, boxes for other electronics projects, and all manner of other bits and pieces that I come up with randomly. But if replicating seems like a good idea once

by larsrc - Reprappers

New builder in - 16 years ago

Hi Reprappers! I'm about to embark on building a repstrap. Since I already got an Arduino (a farewell present from my former colleges), I figure I will start with the software, then get a stepper motor controlled, then delve into the frame. I have plenty of programming experience, but very little mechanical experience, so I'll probably pop up with stupid questions fairly often Right now I'm le

by larsrc - Reprappers