Measured nozzle temp? I don’t have the tools to precisely measure that, but the minimum temp before it jams when printing is around 180C-190C.by Physics_Dude - Reprappers
QuoteVDX try with rising your extruding temperature I've been using 218C with PLA. Any idea on how far I should increment up?by Physics_Dude - Reprappers
It's a bit hard to describe, but take a look at the attached image. I get these silk-like filaments oozing between the outer shells of all parts on a print bed. In all my novice tuning in Slic3r, I have been unable to get better results then this. Surly better results are feasible though, right? These fibres are not as easy to clean off as one may expect. I'm printing with PLA on a RepRapPro Hby Physics_Dude - Reprappers
Alright everyone, my problem is solved 100%! To start, I sourced some new parts. I am using two NJM7812FA regulators in parallel, each sporting a small clip-on heat sink. They are in parallel to distribute the heat evenly across the two heat sinks which would otherwise be too small for a single regulator's needs. The datasheets on this regulator also highlight "Excellent Ripple Rejection" whichby Physics_Dude - General
Correcting myself on something... The sputtering was due to the regulator (7812CT). Apparently the extra load from the caps caused to the regulator to get a little too hot and drop current. This was tested at around S100 in the G-code. Sending a steady 16 volts, or 100% duty cycle, to the regulator under load without filtering proved this point. On a related note, in that last test, I clocked tby Physics_Dude - General
I would prefer to not to alter the printer's PWM frequency for now. It doesn’t seem too healthy for the thing. I do have a couple L78S12 7812CT voltage regulators, I'll see what those can do tonight. Update: The regulator seems to have made the fan a bit more happy and quiet, but there is still a very noticeable whistle/buzz. Adding a 25v 10uF cap on the fan's input reduces the sound, but causby Physics_Dude - General
I found the specs for model 225DS-1LP11 (not LP13). It should be roughly the same. Voltage range = 7.0 - 13.8 Current = 710mA (Can the Huxley handle that?) Input = 8.52w Speed = 2800rpm Airflow = 120cfmby Physics_Dude - General
I just obtained these two massive 120mm fans for my Huxley. I cant find the exact datasheet, but they are 12v, manufactured by Etri, and have the part number 225DS1LP 13510. They are quite literally my biggest fans. (Pun intended ) Anyhow, while I was setting one up in Slic3r and Pronterface, I noticed the very loud whistling that was likely the pwm signal on the Huxley for regulating the speeby Physics_Dude - General
As a final follow up, I have found and fixed the issues. It was not exactly a temp issue, or a extrusion multiplier value, or whatever else I was changing previously. At this moment, all those previous mentioned settings are at their defaults for my printer. To get everything working perfectly, I went to Advanced Settings in the Print Settings tab, and there I changed all those Extrusion Width vby Physics_Dude - Printing
Who would of thought; I always was keeping my nozzle temperature at 200C because, well, I thought that was the norm for PLA. I just bumped it up to 216C or 218C and everything works almost perfectly. I say almost, because I still have a few kinks left to work out. After all this though, my 0.3mm nozzle should be in the mail soon, and when it comes, the tuning woes will have to start all over agaiby Physics_Dude - Printing
After many hours of tuning, I have yet to find the optimum Slic3r settings. The best improvement I saw was when I told Slic3r that I am using a .4mm nozzle instead of a .5mm, witch is all that have at the moment. This produced the most perfect top layer/shell I have ever seen on any calibration cube! However, briefly seen in the calibration cubes, and even more so in a larger item I need to printby Physics_Dude - Printing
I just finished building my RepRapPro Huxley the other day and the only issue I have is one with Slic3r. For some reason I can not figure out, it is giving the horizontal shell layers a poor fill ratio. It's almost as if it is skipping every other pass on these horizontal shell layers. Take a look at the attached picture, the main settings used there apart from what was default were 0.2 fill deby Physics_Dude - Printing
Update: I just scrolled down to the very bottom of the wiring instructions page and read: QuoteAs you can see, "HOTBED" connector is not connected to anything, since we are using the bed mounted MOSFET to control the heatbed. Ok, so I guess thats that then, but why can't I use the MOSFET on the main board? You'd think it would make the wiring look a bit neater, right?by Physics_Dude - General
I'm nearing the end of completing my RepRapPro Huxley when I notice that both the Melzi electronics and the heat bed have a power MOSFET between them. The has brought me to a stand still since I've been following the instructions up until this point where it says there should be an empty spot for a MOSFET on the Melzi electronics, this is not the case. Any advice on this issue would be helpful.by Physics_Dude - General
Alright, excellent! Thanks Sally, I will certainly be ordering a full kit later tonight.by Physics_Dude - Reprappers
Hi Sally, I appreciate your offer for a sample piece, but I find that unnecessary as I will likely place the order for RepRapPro Huxley (and .3mm nozzle) this week. Ideally it would be best if I knew what the typical print settings are for the production prints. (i.e. infill, shells, nozzle diameter, etc.) Other than that, I am very impressed by the capabilities of the RepRapPro Huxley. Maby Physics_Dude - Reprappers
I'm looking forward to getting a Huxley from RepRapPro to replace my Makerbot Thing-o-Matic, but I have a few questions before I make the order. - First off, what is the stock nozzle diameter for the RepRapPro Huxley kit and how does a well-tuned Huxley's print quality compare to a healthy Thing-o-Matic w/ Mk7? - I don't have any PLA plastic, only ABS, so would it be worth it to get the printedby Physics_Dude - Reprappers