Well, this may sound like a joke, but I am actually serious... I think you may be able to find someone who would want to get rid of her/his Prusa i3, and get it as a bargain. There could be a number of reasons for someone to want to sell her/his printer. Maybe she/he has built another printer - bigger, better, and improved design. Maybe she/he no longer has time to play with her/his 3D printeby Yamster - Reprappers
Hmm.. that's a very interesting idea. If not square, how about a flat nozzle, like a slit or elongated oval shape. At least in theory, we should be able to control the extrusion width by controlling the angle of this slit in relation to the movement of the nozzle (or the bed underneath, which is basically the same thing). This means there will be another motor to rotate the nozzle head on XY pby Yamster - Reprappers
These samples are PLA; I found a sticker (not invoice, but a sticker that they would've stuck on the plastic bag, if these filaments were in a plastic bag) which says "PLA Samples 4043D". It says "Samples", not "Sample", so I believe it's referring to both samples. So, I got the plastic type wrong. LOL. Man, I'm a king of guessing-the-plastic-type-wrong. If anyone is not certain about whatby Yamster - Reprappers
Yesterday I was wondering what type of plastic the free sample I have received was. Naturally, I posted a question in this forum, and also Googled a bit. One of the ways to tell them apart was the smell test - how sweet PLA smells when melted, and how "plasticy" ABS smells when burnt. This made me wonder... the one and only PLA plastic spool I have ever owned and used (I'm relatively new) is tby Yamster - Reprappers
Well, I doubled checked the order summary in the invoice sheet, but it does not say what type of plastic these samples re. I wonder if they didn't mention it because there was no space left (I'v also ordered some other little parts, like nuts and screews) I printed it at 220 C. I first tried 230 C, but it was popping at when it came out of the nozzle - maybe some moisture in the filament? Itby Yamster - Reprappers
What are your retraction settings? Did you by any chance try different retraction settings and see if they make a difference? By the way, are you having a print quality problem with objects that have bridges like this only? Do you get a good quality (i.e. even layers, no curl ups, and etc) when you print simpler objects? The questions below are for my own curiosity, probably not related to yby Yamster - Reprappers
appdev007 Wrote: ------------------------------------------------------- > > Make sure filament isn't binding somewhere and > spool is feeding smoothly. > appdev007, maybe this was it... I have a spool mount on the wall and the spool spins freely without any binding actually... however, the spool mount is a couple of feet behind and above the printer, so the filament forms a looby Yamster - Reprappers
I did a snap test. Compared to my black PLA filament, which snaps right away when I try to bend it, these filaments took quite bit of effort to snap - I had to flex it back and forth. So, I guess they sent me ABS filament samples. Come to think of it, that only makes sense since I ordered a batch of ABS filament - they probably wanted to show me the other cool colors. Thanks!by Yamster - Reprappers
I've ordered some ABS filament from UlitMachine. It was delivered to me today, and the package also had several feet of orange and clear filaments. While I appreciate the free sample, I wish they'd told me what type of plastic these were... Is there a way to know whether they are ABS or PLA before trying to melt them and extrude them?by Yamster - Reprappers
So I basically told you what I have learned from you. LOL Sorry about that, but I hope it shows how much I appreciated the tips and knowledgeI have picked up from you, as well as others. Yeah.. I'm pretty bad with remembering name and faces to begin with, so it's almost impossible for me to remember someone's online ID, which is often cryptic and/or meaningless (at least to me). But anyway, tby Yamster - Reprappers
The biggest misguidance for me was the instructions from the RepRap Wiki Calibration page. It does a good job touching this subject (tuning the motor current) very first and stresses the importance of it, but to my personal disliking, it says to turn the trimpot 1/8 of a turn. I believe 1/8 of a turn is actually quite small.. small enough for us to be able to know the difference within 50% margby Yamster - Reprappers
Wow.. that's very clever.. Let me test..by Yamster - Reprappers
Hello, I've attaching pictures when making a post (when I need to show some picture, that is), but I see some people including pictures in their post. You know, the pictures show up as a part of the document, instead of readers having to click and open the attached file. I guess it would require some kind of web space which is accessible by general public, to which I need to upload the pictureby Yamster - Reprappers
Updates... I've been trying everything to resolve this issue past few days. I've looked at and checked all the "usual suspects", i.e. temperature, feed rate, bed level, and etc, whether they logically make sense to have anything to with the particular characteristic of this issue, I still checked and checked again. Apparently, the issue I am having is like a "mini jamming" - a jam not bad enouby Yamster - Reprappers
tleneel Wrote: ------------------------------------------------------- > That looks packed! what is the filling percentage? Well, those were first 3 layers and I had 3 solid layer setup, so the infill percentage would be 100%.by Yamster - Reprappers
3Diddy , I think you are spot on, once again. When I wrapped the Teflon tape around the metal head of the hot end, I couldn't help wrapping the bottom as well. I didn't intend to put insulation there, but as the Teflon tape get stretched when I put them around the side of the metal head, the edge of the tape wrinkled up (because the edges are not stretched as much) and got over to the bottom.by Yamster - Reprappers
mike1986, Did you ever resolve this issue? I think I am having the same issue, so would like to know how you have resolved yours, if you did. Thanks!by Yamster - General
A problem after problem... The latest issue I have is... (I wonder if I'm destined to taste every possible problem there is with 3D printing) that the extrusion "periodically" gets thinner and then becomes normal. I have attached some pictures for reference, and you will see that this has nicely (?) created a criscross/checker pattern. I have tried different feed rate and temperature, even thby Yamster - Reprappers
kburr, Thank you for your concern. I didn't know about the crystallizing of PLA, so I'm glad you told me. I actually was worried a little bit when switching from ABS to PLA, because of higher melting point of ABS - if I have some ABS left over in the hot end, I won't be able to melt them with PLA printing temperature - but didn't know going from PLA to ABS can also have its own share of probleby Yamster - Reprappers
So.... are you seconding what Wissing said... or are you saying something else? chris33 Wrote: ------------------------------------------------------- > no richraps guide on nicer and sclicer and im sure > thet the above triffids guide says the same i > have the same issue but it does make sense if your > gcode says it needs to feed 3mm filament then to > print the particular sby Yamster - Reprappers
jkoljo Wrote: ------------------------------------------------------- > You only have to change the steps/mm value, and > you will have to do that anyway when you set up a > new printer. In Marlin you make the change in > configuration.h file, you will find the correct > place when you look for it. Is this it? #define DEFAULT_AXIS_STEPS_PER_UNIT {80,80,4000,870} If I what toby Yamster - Stepper Motors, Servo Motors, DC Motors
I revisited Triffid Hunter's calibration page and tried to tune the extruder steps again. When I feed the filament without hot end (as instructed) it was feeding about 2-3 mm extra filament, when I fed 100 mm. So, I adjusted the steps per unit for E motor accordingly. Then I reassembled the extruder, heated up the hot end, and just for the hack of it I fed another 100 mm filamet at a lower spby Yamster - Reprappers
I actually thought about that, but my thermistor is really stuck so I couldn't get it out.. I hear some cracking sound when I tried to pull it out, so I stopped right there. Well, I've actually ordered some thermistors (not for the cleaning purpose, but for something else). I am waiting for them to be shipped from UK - I ordered a different kind of thermistors from US vendor, but I had to ordeby Yamster - Reprappers
Wow.. so wrapped the Teflon tape around the hot end installed in my printer. Heated it up to 200 C and let it sit there for a while. Then I turned the hot end fan on... Not even a single degree drop in the hot end temperature!! This is great. This time I put plenty of layers of Teflon tape, and it seems to be doing its job. My one two concerns now is... 1. Long term use. Both deterioratiby Yamster - Reprappers
Okay, today I went to a neighborhood hardware store to get myself a role of Teflon tape... because I couldn't find the one I already have. I must have at least 4-5 of these in my house - they are so small, so rarely used, and so hard to find. LOL Anyway, I have conducted my little experiment with this Teflon tape and my extra hot end. I wrapped the nozzle (the brass/metal area) with the tape aby Yamster - Reprappers
jkoljo Wrote: ------------------------------------------------------- > But to be realistic, you will not hit the > microcontroller speed limit with 0.9 steppers and > 16x microstepping. > > I am using 0.9 degree motors, and I am very happy > with them. More accurate printing. Can you kindly tell me the configuration changes you had to make? I've been told to increase (doubleby Yamster - Stepper Motors, Servo Motors, DC Motors
That's a good point cnc. I guess I should've included the filament size in my question. Yes, as a matter of fact I had a hellish time trying to print with 3 mm ABS filament through 0.35 mm nozzle. It just won't pass through. Interestingly, however, I managed to print with the same 3 mm diameter PLA filament using the same 0.35 mm nozzle. Seems like PLA melts easier so it probably is easier fby Yamster - Reprappers
That curved bottom looks a lot like what I am getting with my printer - in my case it usually only happens with much bigger object which takes a very long time to print. Also, I am using PLA, not ABS. Just curious.. does this always happen, regardless of the shape and size of the object? Also, did you let it naturally cool all the way down to the room temperature after printing is done, or didby Yamster - Reprappers
I was finally able to print X carriage for Prusa i3 after three failed attempt. Because the way this part is oriented on the hot bed (I believe it's for better structural strength for the stress points) it gets knocked down quite easily. In my last attempt, I went crazy with the hair spray as if it's 1985, and started printing and went out for a lunch. I honestly expected to find another birby Yamster - Reprappers
What does it mean by "internally geared"? The motor has some gears just like we have in Wade style extruders? Would there be certain indication or term in the motor's technical specification if the motor is internally geared? I've been always wondering how those direct drive extruders have enough force to push the filament without any gears. Also, with gears we have more precision, so I wasby Yamster - Reprappers