Lanthan Wrote: ------------------------------------------------------- > I recently gave a first try at Marlin. Prusa > Mendel with RAMPS 1.25 and Arduino Mega 2560, > heated bed, GregFrost's extruder, ParCan - > supplied thermistors on both the bed and the > extruder, current Sprinter configured and printing > well: quite standard. Also copied settings one by > one from Spriby miro87043 - General
With the firmware I sent follow these directions and you should be set up. First set you steps per mm. In Marlin they look like this (half way through configuration.h in a section labeled mechanical settings): #define DEFAULT_AXIS_STEPS_PER_UNIT In Sprinter (near the top of configuration.h): float axis_steps_per_unit Just copy the bracketed numbers from sprinter into marlin. Now compile and uplby miro87043 - General
I just did the change your asking about on an identicle (by your description) machine and yes my prints are much better and faster than with sprinter. I opened my sprinter config.h and marlin config.h side by side and went through making the necassary changes. I had trouble compiling though; errors in the SD files. I ended up deleted all the SD files (since I don't need SD support) and edited tby miro87043 - General
Andrew Diehl Wrote: ------------------------------------------------------- > In regular skeinforge it's a setting called > "infill in direction of bridge." Should be off. I can't find that setting in sfact. Pointedstick Wrote: ------------------------------------------------------- > I print Yoda with no infill using Slicer and get > good results with 3 perimeters. The hardest parby miro87043 - General
Hello, Here's what I got: Sfact-Pronterface-Marlin-Ramps 1.4-SAE Prusa Here's my issue: Unless needed for strength, I try to print most parts with 0 fill or as little as possible to save time and material. However sfact seems to think there are bridges where there aren't. For example, I'm printing this, with 0 fill and sfact is printing more than half of the layers as bridges. It seems to happenby miro87043 - General
I had the same issue with pronounced corners. My solution was to change firmware. I was using Sprinter FW, but after reading through the forums, it seems Marlin FW produces smoother perimeters. This has certainly been my experience. I've almost doubled my perimeter speed and have almost no buldge at direction changes. As toehead stated, oozebane may also work, but I've done little with oozebaneby miro87043 - Printing
criswilson10 Wrote: ------------------------------------------------------- > Linear bearings work better than bushings, but > they also usually cost > 10x more. Are they? It seems to me that brass bushings with tight tolerance would offer less friction and therefore better accuracy. What about the 9 bearing setup that puts the rod between 3 bearings? If adjusted properly it seems likby miro87043 - Mechanics
After messing around a bit I found a unexpected solution. I changed the minimum feed speed in Marlin FW to 1 mm/sec (previously 0) and Z axis now moves as it should. However, I'm baffled as to why this worked. If for some reason the Z axis was told to move at 0 mm/sec this action would pause the printer as it would take an infinate amount of time to reach the specified distance (right?), but instby miro87043 - Firmware - mainstream and related support
I've decided to try marlin as it seems that others are getting smoother perimeters than with sprinter. I've got everything working as expected except while printing my Z axis moves inconsistently. Sometimes it's fine and rises for each layer as expected, but sometimes the motors wine but don't move. I read this topic and tried the suggestions with no success. I lowered my Z acceleration to 25 mmby miro87043 - Firmware - mainstream and related support
TheCase Wrote: ------------------------------------------------------- > I got the rod from lulzbots, > > > et.html > > But it was much cheaper ($25) when I bought it a > few months ago. So it didn't matter that I didn't > need the threaded rod from the set. > > If you have a Fastenal in your area, you should be > able to special order in-store to avoid theby miro87043 - General Mendel Topics
TheCase Wrote: ------------------------------------------------------- > Ok, thanks - was able to get the 8mm's relatively > inexpensively (12 for under $25, shipped). Where'd you find your 8mm rod? I'm in the states and having trouble sourcing some.by miro87043 - General Mendel Topics
Well... I've spent the last week doing what I thought was calibrating, but it seems the defaults work the best. For the most part... Sfact is setup for 3mm filament with .5mm nozzle with extrusion height x width of .4 x .6 I'm setup for 1.75mm filament with .35mm nozzle. Obviously I adjusted the filament and nozzle settings in sfact, but I also changed my extrusion to .25 x .45 This seems to workby miro87043 - RAMPS Electronics
evans, I just saw your response. Thanks! Coincidently I gave up with ReplicatorG and went with pronterface and sfact. After much tinkering I have gotten pronterface running and have began printing. I'm now struggling to tune my machine to the best of it's ability. It's occurred to me that going with 1.75mm filament was not the easiest of choices. I've found that the settings that work best forby miro87043 - RAMPS Electronics
You've solved my problems! Thanks!!!!!by miro87043 - General
Alright, so I got full control of all motors with replicator g. I can jog and find home without any problems and I've calibrated my distances. Now my problem is printing. I've started with the 10mm cube. But when I tell it to print only x and y axis operate. No extrusion or Z movement despite operating fine in the control panel. Any ideas?by miro87043 - RAMPS Electronics
Hello, A couple weeks ago my friend introduced me to thingiverse and open source printers and I was immediately sucked in. After a little research I ordered some kits and began assembly. I have a prusa with RAMPS 1.4 from ultimachine and NEMA 17 stepper motors. I have soldering experience and did the RAMPS assembly. My first issue has been with firmware. The only one I can successfully compileby miro87043 - RAMPS Electronics