Is this the best place to put bug reports or should I leave comments in the git repo? I've found a few situations where infill is outside the object's perimeterby Andrew Diehl - Slic3r
50mm/s perimeter, 80 infill, 30 small perimeter. I think my acceleration/jerk are set to 4000mm/s^2 and 10mm/s respectively. Z is 30mm/s. 250C for the PLA. Makes bonding really strong, and at this size of an object part cooling is a non-issue. If you are printing a small part, the corners always seem to curl on me at this thickness. It is just crappy natural PLA from esunpla. Actually got rby Andrew Diehl - Slic3r
FALSE. Anyone may make it for any purpose. Copyrights do not apply to physical functional objects.by Andrew Diehl - Job Shop: I need stuff made!
What I would really like to see is a honeycomb infill that creates a two thread thickness honeycomb structure on every single layer, with a solid manifold with T thickness every N layers. The current algorithm does single thread and half the honeycomb every layer, which makes it's strength very poor for any fill below 30% The biggest problem applying any sort of FEA is our material strengths areby Andrew Diehl - General
Tarjak, Solid layers is really only meant to specify the caps on the part. I would not go any higher than 6 with this value. You want to set fill density to 1 for a solid part. Side note, printed Yoda at .1mm layers, 2 perimeters, 10% fill, 1.5x scale: Sliced in 6min, 32s.by Andrew Diehl - Slic3r
I finally got to play with this tonight and all of it's features seem to work really well so far. That being said, I have a list of suggestions I would love to see implemented Have a "Save as default profile" button in the GUI Make every 'island' perimeter start from the same place. ie: lower left corner. Parts look better without the tiny layer change blobs arbitrarily scattered about. Oby Andrew Diehl - Slic3r
Lets just measure the drivers at 1/8 and 1/16 stepping so we can put this to rest already. I've personally noticed no difference going from 1/8 to 1/16th stepping in heat dissipation, torque, or accuracy. I haven't specifically been testing those (other than accuracy) though. The only trade-off I've experienced for reprap applications is sound output and firmware pulse per second limitationsby Andrew Diehl - Firmware - experimental, borrowed, and future
Whenever the stepper motor goes from enable to disable, it snaps from whatever micro step position it is to a full step position. It is bad practice to disable the Z steppers and has some potential for trouble with minimal gain.by Andrew Diehl - Developers
In regular skeinforge it's a setting called "infill in direction of bridge." Should be off.by Andrew Diehl - General
Through a ton of trial and error I've found you want a constant road width, which is slightly wider than the nozzle diameter, regardless of layer height. Makes sense to calculate width/thickness based on the nozzle diameter and layer height, then. I'm just assuming that is what they are doing, since I have not used the more recent versions of slic3r and sfact. nophead Wrote: -------------by Andrew Diehl - Skeinforge
I retract 1.75mm filament by .5mm at 20mm/s. The reverse amount has a lot to do with the distance is between nozzle tip and the pinch wheel. Longer distance, longer (and faster) retract necessary.by Andrew Diehl - Skeinforge
If you have an abundant source of fine plastic powder, perhaps you should look into making some sort of powder bed printer instead?by Andrew Diehl - Developers
Accessible is one thing, but it was nowhere in the thread title Yes, steppers are torque limited. Unlike servos, they will happily skip steps all day long when your carriage misses the opto and rams into the frame. They will vibrate and be noisy, but shouldn't hurt anything unless you have something fragile where they collide. My first repstrap homed the X and Y axis by over travelling the axby Andrew Diehl - General
Stepper motors are essentially torque limiting devices. If you crash the carriage they simply skip and make noise. No need for an additional torque limiting mechanism in the (would need to be large) drum. Belts have essentially no backlash and don't require a spring tensioner system. They are cheap, and widely available. Also, nylon/fiberglass/Kevlar belts will last longer than metal cable (evenby Andrew Diehl - General
Why do you think this has twice the accuracy or speed?by Andrew Diehl - General
By using fire retardant wire (CL2 rated) and appropriately sized fuses, nearly all that risk goes away. nophead Wrote: ------------------------------------------------------- > The most dangerous part of a reprap is the wiring > to the heated bed. Constant movement can break the > strands inside the sleeving. > > If it is a low voltage - high current bed then the > remaining sby Andrew Diehl - General
Resistor, hands down. Nobody seems to be willing to make a small enough cartridge heater for our use, and the reliability/cost of the resistors has been superb. If the resistors had better dimensional tolerances it would be nice though.by Andrew Diehl - General
I'm pretty sure I can print it no problem. I'll run it through the software and give you a cost estimate within the next 24hrs.by Andrew Diehl - Job Shop: I need stuff made!
Print multiple cylinders. ~1in in diameter. That'll show trouble spots.by Andrew Diehl - General
If you upload a .stl file we can be more helpful.by Andrew Diehl - Job Shop: I need stuff made!
I've printed with HIPS I acquired from HaveBlue a while ago. It prints almost exactly like ABS in every way. Also, some of the "ABS" currently sold by esunpla is almost entirely polystyrene, and behaves almost exactly like the HIPS I have printed with. It even softens in limonene just like HIPS. Why do you want to use HIPS?by Andrew Diehl - Polymer Working Group
You can always DL ReplicatorG. It has a pretty handy convert in>mm and mm>in along with some other handy but simple .stl manipulation tools. I don't know why this hasn't been added to Pronterface yet.by Andrew Diehl - Reprappers
Oh, I absolutely meant accuracy (and only in X &Y) and the Z axis accuracy is even better. The precision is about an order of magnitude smaller on my machines (maybe 2/3x that on many repraps.) And the big thing is, this is all static. With a system that has practically zero backlash. With mechanics which move in a single axis. Over less than 8 inches. Luckily, the dynamic response of the stby Andrew Diehl - Developers
How are you controlling the extruder temp?by Andrew Diehl - General
Upload it to thingiverse instead of a sketchy download site, please. Also, it will be a lot less hassle if you can break up the model into separate pieces. There is just a HUGE amount of support required to print as is, and it will be really hard to remove with a lot of the crevices in the model. For best results, make each wing, arms, upper/lower torso, legs, head, base, feet (which aren't aby Andrew Diehl - General
jonnycowboy Wrote: ------------------------------------------------------- > How many rep-raps do you know that acheive 0.1mm > accuracy, repeatably? I would bet, almost none. Almost all of them can do better than .1mm Doing that at 30mm/s+ is another issue entirely. The reprap mechanics are very accurate from stop to stop, just have some issues at high speed.by Andrew Diehl - Developers
How well it sticks depends on the particular situation. 75% of the time the support I use breaks right off leaving nothing behind other than some discolored stress lines (which can easily be removed with a lighter/torch for 1/2 sec) Otherwise it is usually a single thread which can be removed with an exacto knife or some sanding. The only difficulties are when the support structure is in a dby Andrew Diehl - General
You only have to worry about the licence if you are redistributing or modifying the original design files. You are allowed to use the files however you want. Also, there is nothing preventing sale or direct profit from the sale of the files in the standard GPL. The only caveat is the files must remain open and free. If somebody want to pay your for it even though it is freely available, thatby Andrew Diehl - General
Please add the Fablicator to the list. www.fablicator.com ~$3000 (exact price tbd by Jan when sales begin) 7x7x7in area. Fully Assembled. Thanks.by Andrew Diehl - General