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General discussions. For specific printers / electronics / fabrication methods / softwares, please see other sections.
Re: Quality Improvement - Longboat Prusa - 9 years ago
So belts shouldn't be too tight? I printed some test objects this week end at slow speed and the result was a bit better. I'll install marlin soon to check if any improvement. Thanks anywayby Pierre le vrai - General
Re: Quality Improvement - Longboat Prusa - 10 years ago
Thanks for the advice! I'll give it a try tomorrow and let you know the result. Could it also be that my pololu have too low intensity or that they have too few steps? Anyway, have a good evening. Pierreby Pierre le vrai - General
Quality Improvement - Longboat Prusa - 10 years ago
Hello everybody, I'm starting a new topic cause I have been able to print successfully with my Prusa Longboat various objects. But now I think there are some improvements that could be made cause the quality of my prints is quite bad. I'd like to know if other users of the Longboat have been able to obtain better quality and how, and if maybe other reprapers have advices on how to get smoother pby Pierre le vrai - General
Re: Broken PTFE insulator - 10 years ago
Hi Ebcdic, Did you manage to print complete objects with Mkoiri's advice? For me it worked for a while but i had the impression that any print that lasts for more than 30min would be too stressfull for this insulator. Also after a while the thread broke again. Hope you got good prints/fun anyway. Have a good day. Pierreby Pierre le vrai - General
Re: PC USB killed by my reprap - 10 years ago
Hi everyone, Just wanted to share with you my first successful prints. Thanks for the help on this toasted electronics problem. Here's a quick montage of my reprap (printing a Hangdrum model if you're curious). Have a good day. Pierreby Pierre le vrai - General
Re: Broken PTFE insulator - 10 years ago
Hi everyone, Just wanted to share with you my first successful prints (Thank you Mkouri!). You guys helped me to solve quite a few problems so thanks. Here's a quick montage of my reprap (printing a Hangdrum model if you're curious). Now it will be time for optimization... Have a good day. Pierreby Pierre le vrai - General
Re: Please help me finish my Longboat Prusa - 10 years ago
Hi everyone, Just wanted to share with you my first successful prints. You guys helped me to solve quite a few problems so thanks. Here's a quick montage of my reprap (printing a Hangdrum model if you're curious). Now it will be time for optimization... Have a good day. Pierreby Pierre le vrai - General
Re: Broken PTFE insulator - 10 years ago
Thanks people for your answers. In a very short term I'll try Mkouri's tip. But from all I can read this problem is going to come back with a PTFE insulator under mechanical contraint. So next step will be to look at alternative extruders. If I buy a new whole thing, do you have any recommendation on the nozzle size? 0.5 is standard I understand. What would be the advantages over a 0.35? Haveby Pierre le vrai - General
Re: Broken PTFE insulator in hotend - Why? - 10 years ago
Hi Mathieu, French? Anyway, thanks for the information, I'm gonna check out this hot end, but just a quick question. I read on the website that for printing PLA, you need to add a fan? Did you do that? And also does it come with the silicone heat compound? Thanks Pierreby Pierre le vrai - General Mendel Topics
Broken PTFE insulator - 10 years ago
Hello everyone, I have a Longboat prusa bought from the reprapkitsore, and so far I still haven't printed anything I've had several setbacks and the last one is that my PTFE insulator broke. The thread at the end of the cylinder just broke. I had by extruder clogged, and after a while some plastic started to leak between the brass nozzle and the ptfe insulator. I unmounted the whole thing and dby Pierre le vrai - General
Re: Broken PTFE insulator in hotend - Why? - 10 years ago
Hello everyone, I'm posting on this thread cause the exact same failure happened to me. Zittix, could you tell me how you solved your problem? Did you buy another PTFE insulator? Where? Is there any known solution for this problem? Thanks. Pierreby Pierre le vrai - General Mendel Topics
Re: PC USB killed by my reprap - 10 years ago
Hi guys, I gave one of my stepper driver to test on another reprap and turns out they're toasted. So I'll buy 4 new ones and test is the rest of the card is ok. I'll keep you informed. Thanks for helping me investigate this problem. Pierreby Pierre le vrai - General
Re: PC USB killed by my reprap - 10 years ago
Hi Royco, I downloaded your sketch. How did you chose the pin numbers? By looking at the Sanguinolo schematics on the wiki, I changed the pin numbers to match it. So far I can measure that: The microcontroller is well powered. Motors dir pins don't change of state. I measure that the no.20 pin (last on the bottom left) is the one connected to "motor enable" of x, y and e. Is that normal? When Iby Pierre le vrai - General
Re: PC USB killed by my reprap - 10 years ago
Hi Sublime, I think I found the blink sketch. Do you means that I have to upload this to my board, and then change the initial no.13 pin to successively all pins of the sanguino? Should/can I check the FTDI? Should I do that with the external power on or just with the usb of my macbook? Just to be sure: I need to check the voltage between the ground and the pin tested, right? Thanks again Pierby Pierre le vrai - General
Re: PC USB killed by my reprap - 10 years ago
Hi Sublime. The board shipped with my reprap is a Sanguinololu. I can connect with the PC only when external power is on. Before the problem, I could connect without the external power. So at least it means that my USB is not fully ruined. Do you think the Sanguinololu has a fuse? Pierre Quick update: I connected to the reprap with my macbook -> turns the led on, then plug the external poby Pierre le vrai - General
PC USB killed by my reprap - 10 years ago
Hello everyone I'm building a Longboat Prusa from the reprap kit store. I got it to move and extrude all right with Pronterface but at that point I didn't have the heated bed finished. While checking some voltage on the board connected to external power supply and PC, I accidentally touched something I shouldn't have with one of the tip of the multimeter (I think I touched simultaneously the +12by Pierre le vrai - General
Re: Please help me finish my Longboat Prusa - 10 years ago
Hi Mark, I think you got it right. I plugged the usb to my macbook and the led turned on. It means I damaged the PC I was using to command the reprap. I'm a bit skeptical about printing with my macbook after what happened to my pc. I'll try to check on the internet if there is a way to repair the usb. Maybe a fuse in the computer. And I'll continue to check if there is something wrong with theby Pierre le vrai - General
Re: Please help me finish my Longboat Prusa - 10 years ago
So... It turns out that after that chock, no motor will run. The board could have been damaged. Using printerface, I can't move any axis. The thing is I still can connect, set temperature, heat the hot end and check it, this still works. Do you think the board is useless? Is there a fuse or something like that? I also noticed that before, the led would turn on when plugging the usb. Now it onlyby Pierre le vrai - General
Re: Please help me finish my Longboat Prusa - 10 years ago
Thanks Mark. I got the multimeter and was checking some voltage on the board when I accidentally touched something I shouldn't have with one of the tip (I think I touched simultaneously the +12v and the ground of the GPIO pins). My computer was instantly turned off. I disconnected everything right away. My computer's fine, it survived the chock but I was a bit scared. Anyway, I decided to unmouby Pierre le vrai - General
Re: Please help me finish my Longboat Prusa - 10 years ago
Oops. The diagram:by Pierre le vrai - General