I just encountered the same issue on a new reprap dedicated computer. Disabling the power off seems to have fixed my problems.by Andrew Diehl - General
I'm not sure you could force .5mm filament into the extruder without it buckling.by Andrew Diehl - General
The cog approach should work, but like Gary said, it makes the carriage heavier. As an aside... I can run my threaded Z at nearly the max speed of my stepper (5 rev/s or so). The inertia of the rod is pretty small, and is a nearly negligible contributor to the steppers load. The reason Z axis travel is so slow is mostly because the threaded rod has a "gear down" effect. 16 revolutions of thby Andrew Diehl - Reprappers
If we only used materials that were easy to use and inexpensive we'd still be in the stone age. Somebody's got to make the jump to make those hard and expensive things easier and cheaper. That being said, it is initially going to be complicated to get filament made from it, and Corian is likely too brittle to be coiled in reasonable diameters. Also, additional pressures are required to extrudeby Andrew Diehl - General
Another Question, The method for calling out temp sensors has changed since my last version. I'm trying to set up my ad595 thermocouple but I'm not really sure what to put in the "additional" column. Everything I've tried so far has resulted in a temperature reading of 0 through hyper terminal. // name type pin additional DEFINE_TEMP_SENSOR(extruder, TT_AD595,by Andrew Diehl - Firmware - experimental, borrowed, and future
I have not been running the current. I probably have a version over a month old. I hadn't switched because it was a multi hour project to change over, and the version I had was running perfectly 99.9% of the time. Since It sounds like my issue has been resolved, I've begun the jump to the current master. Markus, The current master has #define STEP_INTERRUPT_INTERRUPTIBLE 1 Should I be cby Andrew Diehl - Firmware - experimental, borrowed, and future
Has anybody had problems with teacup randomly deciding to send some combination of the x/y axes to infinity during a print? It seems to be a persistent random occurrence, happening with a frequency of once every 10 print hours or so. The soft limits do not seem to apply to this, as I've let it crash for 30min continuously (hundreds of meters of theoretical travel) The host software (send-Gcodeby Andrew Diehl - Firmware - experimental, borrowed, and future
Heavy cutting oil usually contains sulfer/sulfites which gives the distinctive machine shop smell. Soaking the parts in acetone will likely remove the smell, and you may re-coat in a clear sewing machine oil which has no distinct odor, or live with the ensuing rust.by Andrew Diehl - General
I've got no oozebane nor reversing. I don't have any acceleration enabled, either. I wonder if some form of teacup acceleration must be enabled for it to work.by Andrew Diehl - Skeinforge
Did you have to change anything in teacup besides e_startstop_steps to do firmware reversing? It isn't doing any reversing just increasing that number to 200. I have a feeling I'm missing something, though I am running an older version of teacup.by Andrew Diehl - Skeinforge
Maker slide doesn't exist yet as far as I'm aware...by Andrew Diehl - General
Your reprap has to heat up, and likely uses some form of acceleration. Both of these added times are unknown to skeinforge.by Andrew Diehl - Skeinforge
Supposedly an acetone vapor bath can smooth out abs.by Andrew Diehl - General
Define "economically sold pre-assembled"by Andrew Diehl - General
I'll have to try that. I upped the Z to 8mm/s and it helped, but was still a problem. I assume 600mm/min not 600mm/s?by Andrew Diehl - Skeinforge
Good Choiceby Andrew Diehl - General
Temperature control! Being able to maintain a constant and known temperature is paramount to soldering many surface mount components.For general purpose soldering of plain wires it will work perfectly fine, but for SMT and some temp sensitive through hole components it will eventually get you into trouble. (dead parts). They work really well for a lot of things, but I can not recommend them foby Andrew Diehl - General
That gas one will do more harm than good for soldering circuits.by Andrew Diehl - General
I'm sure it cracks and dries out eventually (like regular play dough). Not to mention getting "bugs" in your circuitby Andrew Diehl - General
Good looking knockoff of the Hakko irons we use at work. One of my friends says they work nearly as well, and sparkfun seems to like them a lot.by Andrew Diehl - General
As long as it comes on a spool I'm happy. I feel 3mm is more tolerant of imperfect compression of the pinch wheel. I do not use an extruder with a spring so I rely on a fixed gap to compress the filament into the hobbed bolt. being .5mm off on 3mm vs 1.75mm is a lot less in percentage. If you have a good extruder design it doesn't really matter. I've made excellent (and poor) pints with both sizby Andrew Diehl - General
Has there been any thought as to ignoring the XY endstops and moving to a hard homing approach? By hard homing I mean "softly" crashing the carriages into the end of travel by giving a slightly larger than the possible x-y travel g-code. At the end of the move you know exactly where the X and Y is. The steppers just skip steps once the carriage hits the end of travel. Since the steppers we (oby Andrew Diehl - General
In my opinion, you are going to need a decent metal lathe and some tooling if you want to do this yourself (and make any money) The all in one appears to be for wood.by Andrew Diehl - General
What tolerances did you give them, and are you supplying the material? Providing stock which only has to be machined on 1 side can greatly reduce the cost. (markup on material can be huge) As an aside, if you are going to get something done at that cost it's probably worth while to re-design it for optimal performance rather than ease of DIY manufacturability.by Andrew Diehl - General
There is a replace.csv file in the skeinforge/alterations directory. Save one of the sample replace .csv files as "replace.csv." Open the file, type the code(s) you want to eliminate (one code per line) and it will edit them all out of the g-code. Also, make sure skeinforge has replace.csv under Export-subheading "name of replace file" within the skeinforge gui.by Andrew Diehl - Skeinforge
Hey! SUMMARY: (Does anybody have a good skeinforge solution to the blobbing caused by a bowden cable? ) I've been getting awesome prints with skeinforge and a standard wade style extruder for a week or two now, and I just built a bowden extruder/ultimaker style machine. Everything seems to be working well, except I get massive blobs of plastic where the layers change. I've tried using oozebaneby Andrew Diehl - Skeinforge
Rigidity is quite important, even for a reprap. That is one of the things that allows them to print faster. If you are plodding along at 20mm/s reprap works well, but once you get up past 50mm/s you can see small oscillations in your extrusion near corners and turns.by Andrew Diehl - General
I was speaking about abs. Perhaps you need to try Skeinfoge. It's pretty complicated, but the added control over everything is really helpful in improving print quality.by Andrew Diehl - General
I have not. I am speculating based upon my experiences with moving from skate bearings/threaded rod frame to something more substantial. And in my time researching, I've never seen somebody with a "stock" mendel make prints that look as good as the Up! imagesby Andrew Diehl - General
I'd say no. There just isn't enough rigidity in the design, nor precision in the components, to make quite as nice(and fast) prints Add some linear bearings, ground/hardened shafts, a precision nozzle/heater, micro-stepping drivers, and a nice stiff frame... For as much as reprappers sometimes hate to admit, mass design/production is a wonderful thing Oh and SOFTWARE is also key. The best hby Andrew Diehl - General