eikgnum Wrote: ------------------------------------------------------- > Why do you not use vitreous enamel heaters and brass > like all the better nozzles when it is know that stainless > does not work, are you trying to play joke on innocent > reprappers? because vitreous enamel resistors fail too easily. I've chucked a good dozen or so, gave up and went to cartridge heaters. Haveby Triffid_Hunter - General
funbart Wrote: ------------------------------------------------------- > It turns out that the settings (always showing up > in a new install are stored in: > C:\Users\username\AppData\Roaming\Slic3r > deleting them did the trick. > > DON'T HIDE IT SO DEEP!!! But application configuration settings are supposed to go into %APPDATA%!by Triffid_Hunter - Slic3r
The thermistor won't care if you put 12v across it. the problem comes when you run 12v into the AVR's analog input, and putting 1k in the thermistor's ground leg won't change that at all. Putting it between the thermistor and the arduino would help, but would also give you an offset error due to the ADC's input impedance.by Triffid_Hunter - Controllers
DaveX Wrote: ------------------------------------------------------- > Same > for a few of the other PWMs, if you avoid Timer 1 > and the 16 bit Timer 3. no need to avoid 16 bit timers for PWM, just set them to 8 bit mode and write to the high word. Should already be some code for the mega to do thatby Triffid_Hunter - Firmware - experimental, borrowed, and future
Also relevant: Configuration_adv.h:160:const int dropsegments=5; //everything with less than this number of steps will be ignored as move and joined with the next movementby Triffid_Hunter - General
x86_64 Wrote: ------------------------------------------------------- > Also rewrote gcode parser > into state machine with saving about 1kbytes of > code. it already was a state machineby Triffid_Hunter - Firmware - experimental, borrowed, and future
x86_64 Wrote: ------------------------------------------------------- > What if there would be only one hardware timer and > code which makes from it software timers, like if > i have a timer for 100ms and other for 150ms, i > set up hardware to 100ms, wait for it, fire up > first software callback, then set up hardware > timer for 50ms, and wait for it. Soupcup does this. Teacby Triffid_Hunter - Firmware - experimental, borrowed, and future
LT1Pat Wrote: ------------------------------------------------------- > I've assembled the > RAMP 1.4 before from scratch and it can be tough > to get the headers to be perfectly perpendicular > to the board with the first few solder joints actually it's really easy, just stick some male headers in the top across the various females. For the pins on the board, I put a female header aby Triffid_Hunter - For Sale
RobA Wrote: ------------------------------------------------------- > I've also attached a photo of my current print > quality: looks good to me, a touch of lash perhaps and occasional flow inconsistencyby Triffid_Hunter - Slic3r
RobA Wrote: ------------------------------------------------------- > Not sure why a lower multiplier would give me > better top surfaces, but it does. Not even sure > why it needs to be dialed back by 10% since it was > calibrated to the actual intake within 0.5% this happens because we can't measure the filament diameter with enough precision. remember that extruded plastic is proby Triffid_Hunter - Slic3r
I've been having M3 nut traps (5.5mm wall to wall) coming out at over 6mm even when sized exactly in the model - big enough for the nuts to easily spin in the traps. I've had to drop them to just 5mm in the model to get them the right size, however then vertical traps (where the bolt goes through horizontally) are far too small so I have to use different nut trap sizes in my model depending on orby Triffid_Hunter - Slic3r
dzach Wrote: ------------------------------------------------------- > But the 3mm holes come out right. It is the 22mm > one that comes out 21.3mm. this is exactly what I'd expect to see if slic3r is trying to make the 3mm holes 3.4mm in diameter and you're pushing too much plastic I tune my plastic flow so that when I slice something at 95% fill, I can see gaps in the fill but not theby Triffid_Hunter - Slic3r
nophead Wrote: ------------------------------------------------------- > It determines the maximum > filament cross section you can produce and it also > determines corner radii and how much holes shrink > and how well bridging works. I frequently print with extrusion width set wider than the die swell, works fine for me. Slic3r assumes zero die swell when bridging, so any actual diby Triffid_Hunter - Slic3r
dzach Wrote: ------------------------------------------------------- > I am struggling to get inner diameters of printed > holes right, using slic3r. The nominal diameter of > my DIY nozzle is 0.4mm, and the mid air extrusion > width is 0.75mm@300mm/min , possibly due to the > very small orifice thickness. the die swell is totally irrelevant when printing fyi, although it's looselby Triffid_Hunter - Slic3r
I'm sure Sound would appreciate a git bisect on this issue since you've found a way to reproduce itby Triffid_Hunter - Slic3r
if G92 E0 is causing offsets in X, then that's a firmware issue, not a slic3r issueby Triffid_Hunter - Slic3r
try viewing the gcode with gcodeview which detects and intelligently handles code with z-lift. Other viewers misinterpret z-lift as layer change and give exactly the output you describe.by Triffid_Hunter - Slic3r
I mostly use 0.5 width and 0.2 height with my 0.35 nozzle and my prints turn out looking awesome with both makergear and arcol v4 hot-ends. I'm currently doing some parts at 0.625 width and 0.25 layer height with my 0.35 nozzle and they're turning out perfectly with perimeters at 80mm/s and infill at 120mm/s. I'm with nophead, nozzle diameter should only be used when bridging and setting a sensby Triffid_Hunter - Slic3r
nophead Wrote: ------------------------------------------------------- > Yes 120C is too hot after the first layer. You > need to be below the melt point of the ABS. > > I can't get ABS to stick to glass unless I use ABS > juice. Even then it seems unreliable. Sometimes > objects lift. Sometimes they stick so well they > pull flakes off the glass when removed. wow I've neveby Triffid_Hunter - General
N314 Wrote: ------------------------------------------------------- > How do load filament?!? I can never seen to get > filament to load right. Is there a secret? Im > using wades extruder with 1.75mm Filament. print and install gregstruder then when you want to change filament, 1) slacken idler 2) heat hot-end to Tg+5c (Tg is 60c for PLA, 105c for ABS) 3) wait for it to overshoot, thby Triffid_Hunter - General
nophead Wrote: ------------------------------------------------------- > Perhaps all you need to do is slow the first layer > outline speed, or increase the bed temperature for > the first layer. The photos show that the warping occurs after printing the perimeter, look closely at the corner on the left. If it were simple poor adhesion or too fast first layer then it would look scrappyby Triffid_Hunter - General
richgain Wrote: ------------------------------------------------------- > My Mendel90 is printing quite nicely now but since > changing to Marlin firmware a few days ago I have > noticed significant warping at sharp corners of > the base of angular prints. The print is generally > sticking well to the glass and I am now wondering > if this is an acceleration/jerk issue. nope, tby Triffid_Hunter - General
Chowderhead Wrote: ------------------------------------------------------- > Thank you all for the explanations, never would > have occured to me all that's required to control > these little motors! I'm sitting here loving the > music of the printer. Doesn't take much to drive a stepper.. It does get quite complex when you want a stepper to maintain torque across a range of speedsby Triffid_Hunter - General
The trouble with recycling milk bottles is that HDPE has a high coefficient of thermal expansion. Basically, HDPE warps savagely and is almost completely untamable. If you go back a few years in the various reprap blogs you'll see lots of people trying desperately to get HDPE working. As for printer cost, it really depends what you go for. I helped gold coast techspace assemble their printer, aby Triffid_Hunter - Australia, Toowoomba RepRap User Group
Oh, forgot to mention that you'd have to brake our steppers extremely hard for the power consumption to drop to 0!by Triffid_Hunter - General
> 4) Real time current draw increases with increasing acceleration? Real time current draw increases with increasing speed, but not by the method you would initially suppose When the stepper is spinning, it acts as a generator, creating a voltage that opposes the drive current from the pololu. In response, the pololu must provide more voltage to overcome the back-EMF and keep the same curreby Triffid_Hunter - General
the automotive blade fuseholder is a neat idea! should put a red or orange led under it that lights up if it blows or something so the whole fuse glows.. a p-fet would drive it perfectly: source to pwr-in, gate to load, drain to led. btw, if you use IRLB8743 or FDP8870 mosfets for extruder and bed, you won't need to heatsink them!by Triffid_Hunter - For Sale
For PLA bushings, you want to use LM8UU sockets (set lm8uu=1 in your configuration.scad), and combine with my Printable Bushingsby Triffid_Hunter - Australia, Melbourne RUG
rat man407 Wrote: ------------------------------------------------------- > i live in mullum to anybody know of any good > suppilers nere by for the rods, nut and all that > other type of stuff mullumbimby? There's boltbarn in lismore, mitre 10 in mullum itself, a few up at tweed, probably something at ballina too. I didn't find any smooth rod in this area, got from - tell them it'sby Triffid_Hunter - Australia, Brisbane RepRap User Group
> Triffid_Hunter, so are you saying you don't need > to account for variation in your modelling to > acheive correct hole sizing? yes, however if I want things to not be a super tight fit I do need to leave some space, which is true of all manufacturing methods.by Triffid_Hunter - Slic3r