Thanks for the link Bob.by AgeingHippy - Skeinforge
Hi All My printer has been gathering dust these last 8-10 months or so until I had reason to fire it up again over the weekend. I have version 40 or 41 (not sure) and was wondering what value there may be in upgrading to version 49 (the latest). Thanksby AgeingHippy - Skeinforge
Hi Jim Regarding CleanRetractions.py - do you run it on an exported gcode file or do you add it to the Skeinforge print chain so it is included in every build? Cheersby AgeingHippy - General Mendel Topics
Hi James That is interesting. I will give it a try. I guess the oil film is so thin that it will not affect the adhesiveness of the layers being put down. I did run a test putting my Perimiter Width Over Thickness (ratio) - PWOT - up to 1.8 from 1.5 and that seems to have improved the surface. As brnrd states, my infil tends to be very messy (30% 0.5mm nozzle 0.33 layer thickness) with very tby AgeingHippy - General
Hi All I seem to be having a problem nowadays in that my sparse infill tends to be very messy and the top layers always end up with holes in them. It seems the nozzle tends to accumulate a little plastic on it (away from the hole) and this then causes the plastic the nozzle to pick up previous threads laid in the next pass (not layer but when the nozzle swings back on the adjacent strand). I aby AgeingHippy - General
Hey Dude As a shopper I would like to get an idea of your shipping costs without having to create an account/login... Hope to see you display such soon enough. Cheersby AgeingHippy - For Sale
Hey guys Maybe someone will find this interesting....by AgeingHippy - General
Hi Guys I wish to import a jpg or bmp sketch which I can then extrude into a 3D object which I can then save as an STL for printing. Not for any heavy duty stuff, but say to produce a keyring from a simple sketch. The simplest would be to import an image of a circle and then use some 3D package to extrude that circle into the third dimension to form a cylinder... then being able to save the resby AgeingHippy - 3D Design tools
I would suggest that when you get a jam switch everything off and let the feedstock solidify in place. Once everything has cooled down dismantel your extruder and examine the profile of your feedstock. Is there some swelling of your feedstock diameter before it enters your thremal break or the barrel etc. This will help you narrow down the cause of your jam. Of course it could just be a hobbinby AgeingHippy - Mechanics
Hello All I wonder if anyone knows how to go about importing a jpg or bmp file containing a sketch or grayscale drawing and then convert that to a 2D object (such as a face in HeeksCad) which can then be extruded into a 3D object? Thanksby AgeingHippy - 3D Design tools
Hello All Can anyone please explain how I can determine the z start and end points of an object, say a cylinder? If I draw a cylinder with centre=true it seems to draw more of the cylinder at z>0 than it does at z<0?? Any advise would be appreciated. seems I was mistaken. The piece I am trying to change consists of a number of cylinders with various translations... hence the centre notby AgeingHippy - 3D Design tools
Hello All I am considering moving to a Bowden extruder as my maximum z height is currently 65mm. If I was to relocate the extruder using a Bowden cable to feed the hot end I would get much more (at least doubling my z height). I wonder if those that have moved to a bowden setup could suggest ways of securing the extruder and maybe even attach photos of these setups. I have an Adrian's extruderby AgeingHippy - General
My goodness!! I have upgraded my extruder stepper driver from the Gen3 h-bridge hack to a Pololu stepper driver with 1/8 step and I am barely aware that the extruder is running, with only the sound of the gears meshing being heard. (Not to mention that nasty whine being absent as well) I have my Y-axis on a pololu stepper driver drop in to replace one of my G3 stepper driver boards but alwaysby AgeingHippy - General
Hello All My X and Y axis is pretty accurate. 100mm square is about 100.19mm square which is probably close enough. Problem is my 2mm (designed) walls are 2.3mm wide. Skeinforge output gives me a wall of 2.02mm (when I calculate the centres of each side together with the layer width (calculated from layer width over height ratio) from the gcode. I wonder if anyone has any ideas as to how I canby AgeingHippy - General
Hmm... I am afraid I am not particularly trusting of posts where the poster is not a registered user on this forum...by AgeingHippy - Reprappers
Hi Nudel Sorry for being thick but could you clarify your ratio settings? Are you setting your Bridge feed rate multiplyer @ 0.8 leaving the bridge flow rate multiplier at 1 (giving a ratio of 0.8 as I understand it) or are you setting both variables to 0.8? I would imagine setting the feed rate 0.8 and flow rate 1 would give roughly what I saw when the infill (very short zigzags) seemed to croby AgeingHippy - General
My testing yesterday found when speeding up the feed rate on bridges did not really work, but when it was doing the infill (my test piece was a 2mm wide wall) the infill would span the gap!! - it would be strait which almost makes me think the feed rate should be reduced or the flow rate increased when bridging... interesting. Anyway - I need more tests.by AgeingHippy - General
Hello All I wonder if anyone could tell me how best to deal with bridges? Do I want it to run faster over the bridge? slower? Extrude more? less? I have a bridge of about 21mm I wish to span. I am using PLA and Skeinforge. Thanksby AgeingHippy - General
Be sure you are modifying the correct section. In your configuration.h file there are settings for a number of boards... you could be changing the steps per mm values for the wrong board. Ensure you are defining the correct motherboard. I have Gen3 electronics so in my firmware I define (around line 24 of the file) #define MOTHERBOARD 2 (this is the standard mendel setting) Then further doby AgeingHippy - Firmware - mainstream and related support
You need to activate DIMENSION for the (E)xtruder codes to be generated. See the Skeinforge forum - some good tips are to be found thereby AgeingHippy - Reprappers
brupje Wrote: ------------------------------------------------------- > How did you fix that? I might be experiencing the > same problem wile printing larger objects. While > printing the infill the extruder seems to jam in > the PTFE barrier I assume you are asking me brupje? My thermal break was of the PTFE/PEEK variety. I purchased more PTFE and drilled out a hole to 3.1mm (sameby AgeingHippy - General
alternatively, let it cool down, dismantle the extruder and examine the filament shape. You will be able to see whether it has deforemd... One of the problems I had was that the inner diameter of my thermal break was bigger than the innerdiameter of my barrel. Under pressure, and given the plastic in the thermal break was softened slightly, it expanded to fill the space (3.5mm) and then jammed wby AgeingHippy - General
Hi Peter I use heat shrink to insulate my thermistor and (heating) resistor and thus far it seems to work verry well.by AgeingHippy - General
If you are priming your extruder by extruding before you actually print then check out this thread for a solution. But I must say your description of your problem does not sound like this is what is causing it.by AgeingHippy - Skeinforge
Hmm.. maybe you could put the gcode here? Perhaps someone can look and tell if it is dodgy.by AgeingHippy - Skeinforge
Maybe it's Repsnapper that has the problem?by AgeingHippy - Skeinforge
hmm... that's a fairly good price if it is inclusive of VAT...by AgeingHippy - For Sale
MrJohn What are the last few gcode commands in the debug window when it pauses?by AgeingHippy - General
Gordon What I did (with an Adrian's extruder) was to insert a many folded piece of aluminium foil between the plastic and motor as I thought it may have been the motor heating up my bearing which ran against the plastic which in turn was heating up and softening the plastic, causing feed failures. The tin foil stuck out at the top and the sides which I fanned out a little, allowing heat to wickby AgeingHippy - General