poissonrouge Wrote: ------------------------------------------------------- > Further to the above info, the forecast sizes in > pronterface are incorrect, with X and Y being > over-estimated but Z being correct. Is this a > problem with pronterface or slic3r? The X and Y sizes indicated in pronterface will include any perimeter loops or brim that slic3r is set to generate. Does thby RobA - Printing
thecrazy Wrote: ------------------------------------------------------- > Yes! definitly! > > Thank you very much guys. > > Proves how good GT2 pulleys and belts are though. > My belts are very slack compared to that video and > I still only get a 0.04mm variation on my X and Y > when calibrating. > > Cant wait to thighten and recalibrate! If you are printing cubby RobA - Reprappers
1. Type of PSU: -- HP model DPS-600PB series ESP135 PS (used in ProLiant DL380 G4 Rack Servers) 2. Specified overall PSU power: 575W 3. Specified current on the 12V rail: 47A 4. Approximate current of the heated bed: 12A 5. Firmware in use (Sprinter, Teacup, ...): Marlin 6. Does the heated bed use PWM (yes / no / unknown): No 7. Does it work / what fails? Works great. Modified the PS to beby RobA - Controllers
Interesting project! Would it be possible to provide streaming video support as well so the physical printer can be monitored via the web browser? -Rob A>by RobA - Developers
I am using 0.9.2 without the lift feature, and have not experienced any if the issues, so I assume it is only when using lift. -Rob A>by RobA - General
Dale Dunn Wrote: ------------------------------------------------------- > Never heard of anyone actually trying it. What's > the advantage? Lead screws are simple and already > pretty rigid. Mainly to allow the printer to be smaller when not in use. Rather than a gantry style, I'm imagining a core-xy style where the entire X/Y frame can be elevated using a scissor lift. This would giby RobA - Mechanics
Does anyone know of any experiments with non-linear Z-axiz, or even support for such in any firmware? I'm thinking specifically of a screw drive scissor-lift style of Z axis to act as a mechanical multiplier. It may be similar to the changes made to accommodate a delta design? -Rob A>by RobA - Mechanics
Once your extruder steps are calibrated to correctly pull in the amount of filament, jump to this: and calibrate slic3r in that manner. The only change I had to make was to print two of the _40x10.STL files at once (even with cooling on) as the filament was not firming up fast enough and it was making a mess with only one copy. (printing PLA) Following this got me bang on with 0.9.2 -Rob A.by RobA - Huxley
Lodorenos Wrote: ------------------------------------------------------- > I realize this is an old topic, but would the same > work for the Marlin firmware? My X and Y values > are both at 80, but my circles turn out slightly > oval every time. The only thing I haven't tried is > changing that value. > Is you oval shape orthagonal to the X/Y axis? If so, you need to calibraby RobA - Reprappers
I've also doodled a few designs like this, in particular for printing threads. One thing that would have to be done is to manage the print surface velocity to the extruder by varying the angular velocity with the distance from the core. -Rob A>by RobA - General
Slic3r has roughed in code for arc detection and generation of G2/G3 arc codes. There are some issues with it however, so it is not enabled in current builds. -Rob A>by RobA - General
Lodorenos Wrote: ------------------------------------------------------- > Thanks for your replies, that would work to a > degree. I guess having the voice of a russian lady > saying "Operation Completed" is a bit beyond the > scope of a normal RepRap. if you are only using one endstop, just mount a switch on the other end (pick X or Y) and send the gcode at the end to move there atby RobA - Firmware - mainstream and related support
stabbs Wrote: ------------------------------------------------------- > I am having a similar problem explained more here, > but I have to set the extrusion multiplier to .1. > I am using a high-torque extruder so I had to set > my E-steps to 6400. I wonder if the higher > E-steps value is exaggerating the problems others > on this thread are experiencing. Are you using micrby RobA - Slic3r
I use the IRLB8743 for my heated print bed, which should carry more than enough current at logic levels. -Rob A>by RobA - Reprappers
NumberSix just shared a nice link of his Jhead assembly in another post -Rob A>by RobA - General
Once you are fully sync'd it will display "In Sync" at the top. To roll back to a previous commit, select the commit in the list on the right side with a left mouse click. In the main pane, click on "roll back to this commit". On the right side it will now state "uncommited changes". Click on the "Show" button. The main window will now have a bunch of files and state "Select all Xby RobA - Slic3r
Attached is a graph of what X backlash, Y backlash, or both look like when printing a circle, assuming a counterclockwise print direction. I have graphed these with 0.05PU backlash to clearly show the effect, and the flats -Rob A>by RobA - Reprappers
I don't use spring on my idler, I just use rubber grommets between two washers. After loading filament, I just tighten them up. -Rob A>by RobA - Reprappers
It depends on the OS. I'm using GIT for windows, and in that GUI I just click on the version I want. I then have to discard changes since that version and I'm back to the old one... If using git from the command prompt I'd suggest google, which gave me: -Rob A>by RobA - Slic3r
Roll back to one commit before Allesandro's July 27 commit. This work for me. The bug report also states that turning off multiple processors may help//? -Rob A.by RobA - Slic3r
You could trap the rods in regular bearings, much like the original mendel does: -Rob A>by RobA - Reprappers
Firmwares that use SD cards utilize the SPI Bus interface, not the one or four bit SD Bus interfaces. This is a synchronous 1-bit interface that is accessed in the arduino by bit banging I/O pins, as far as I know. This makes I/O limited by the speed the microprocesor can generate the SCK clock pulses. -Rob A>by RobA - General
Will this work on a RAMPS 1.2 board? -Rob A>by RobA - For Sale
You can go inkscape to openscad: -Rob A>by RobA - 3D Design tools
A good read (for those who haven't already seen it) is Michael Weinberg's paper "It Will Be Awesome if They Don't Screw it Up: 3D Printing, Intellectual Property, and the Fight Over the Next Great Disruptive Technology" -Rob A>by RobA - General
The real money will happen and pull in "big business" to the consumer market once the 3d printers with proprietary print cartridges/material take off. The "give the printer away for free, give the designs away for free, but we'll gouge you on the consumables" strategy. Worked for disposable razors. Worked for inkjet printers. I'm sure it will work for 3d printers, too. There are already compby RobA - General
I just use a 120mm case fan running at 9V blowing across the entire print surface, from the front. I don;t experience any difference front vs. rear in terms of non-curling. -Rob A>by RobA - Reprappers
I tried to print this: and found that the dovetail tabs are too big to fit in the slots by about a mm. Is this the same issue? (I ground them down and epoxied everything together, so no harm no foul, but this does seem like a bug in 0.8.4 -Rob A>by RobA - Slic3r
There is already a setting "Infill Every N Layers" which does this. If you set your layer height to 0.2mm and set this value to "2", it will infill using 0.4mm layers.by RobA - Slic3r
Triffid_Hunter Wrote: > we can't measure the filament > diameter with enough precision. remember that > extruded plastic is proportional to square of > diameter, so even a tiny inaccuracy in diameter > can have visible effects on output volume Fair enough. I've also attached a photo of my current print quality: -Rob A>by RobA - Slic3r