Hi Michael, ... maybe it's something like "*step_output_reg |= step_bitmask;" where instead of "AND" with an inverted value it should be "OR" with the bitset for staying HIGH. Look in the handling of bit-values and especially the operators "&" (AND), "|" (OR) and "~" (maybe INVERT) ... Viktorvon VDX - RepRap Host
Hi Michael, the running software only inverts the step-pins on every occurance, so you have to initialise the pins at startup to HIGH and when stopping set them to HIGH again instaed of LOW as now. I don't have the arduino-IDE here, so out from memory: - somewhere in the end of the stepper-controller.pde you have to set the pins to LOW by something like "step_pin[] &= ~step" or such for evevon VDX - RepRap Host
... maybe in this post: (especially the atached images and links) you can find informations and basics ... Viktorvon VDX - Mechanics
Hi Michael, ... ok, got it - the older versions are also partially coded by Chris, but without accel. So you have either to invert the init and canceling polarity in the software or solve it with hardware by adding an inverter-IC ... Viktorvon VDX - RepRap Host
Hi Michael, which version do you have? In all my versions in the function "do_step(byte step_pin)" you can invert the stepping polarity by exchanging HIGH v. LOW (a.v.v.) in the lines "digitalWrite(step_pin, HIGH)" and "digitalWrite(step_pin, LOW)" Viktorvon VDX - RepRap Host
... a magnetic 'levitation' setup is not rigid enough for a cartesian bot. I developed some micropositioning stages with magnets and ferrofluid as linear stages and actuators - it's friction free and highly precise until nanometer resolution, but you need a position measuring feedback in the same accuracy and the behaviour is like a strong damping squid. I could work very good with 0.03mm thickvon VDX - Mechanics
Hi Demented, ... the compiler/linker can't find the libraries, so your environmet variables aren't set correctly. Try to de-/reinstall with the right tool-chain and installation order ... Viktorvon VDX - Controllers
Hi Sid, ... welcome back Nach meiner Erfahrung kannst du einfach nicht genug Rechenleistung in einem aktiven Projekt haben - irgendwann kommt immer der Punkt, wo die vorhandene Kapazität nicht mehr ausreicht ... und auch gerade im Bereich 3D-Daten verarbeiten und ausgeben ... Den Arduino Mega habe ich inzwischen dazu bekommen, daß er mit den Schrittmotorendstufen kommuniziert, aber bisher nurvon VDX - Altes Forum
Hi mods, ist there some possibility to repair the older posts trucated after special paragraphs? Especically in the german forum most posts are pointless when the text breaks after the first appearing of an special sign as "äöüß" ...von VDX - Administration, Announcements, Policy
... Sebastian erased the first wave, but the worm seems to spread more every time I don't think it's so easy to track him down as some specifics were changed irregularly 'on the fly' ... Viktorvon VDX - General
... ouch , the next wave is coming Viktorvon VDX - Administration, Announcements, Policy
Hi joaz, ... i managed to get the Arduino Mega running, but until now only with GCode-interpreter and Java host. Have you plans to sell the Sanguino in your shop too? Viktorvon VDX - For Sale
... managed to get the Arduino Mega running, but only with GCode-interpreter firmware and java-host ... Any known workaround for ReplicatorG? Viktorvon VDX - RepRap Host
... this is a bot-worm, invading the forum , so no need to communicate with ... Viktorvon VDX - Controllers
Hi Bodge It, BodgeIt Wrote: ------------------------------------------------------- >... > Was the paint package Degas Elite? >... ... no, i did most of the BW paintwork with STAD then - and the vector-outlines with a selfprogrammed GFA-basic program, which scanned the image for points and erased/connected them to straight lines with output to HPGL ... Viktorvon VDX - Controllers
... update: I've included in the define-queries the __AVR_Atmega1280__ and got the "RepRapSDCard"-library compiled. By reading the comments i found the info that some registers/pointers of the Arduino Mega were changed from "uint8_t" to "uint16_t" - maybe the problem is here? Viktorvon VDX - RepRap Host
Hi all, who has managed to run an Arduino Mega with ReplicatorG? I compiled and uploaded the reprap-gen3-firmware-1.1 successfully but when starting ReplicatorG it founds firmware 0.4 ?! I haven't any other hardware atached, only testing the pins - but hope to get it running soon ... One point more - the library "RepRapSDCard" in the firmware won't compile and throws an error: "no sd/mmc pinvon VDX - RepRap Host
Hi Phil, ... i'm not damonb - but i'm going similar ways ... My different stepper-drivers are some selfmade IMT901-drivers and a SMC11 from Naotec with 1/8-microstepping and max 2Amps and 3 drivers from IMS with 1/256-microstepping and 3Amps continuous, 4Amps max. Viktorvon VDX - Mechanics
... my first thought were too: - "... would it have enough torque and resolution?" I have a nema23-stepper wit a 1:10 gearbox and 1/8- and 1/256-microstepping drivers, so this would change to max. 16000 or 512000 steps per revolution what should be more than enough But i think without gearbox it's not enough power for extruding the molten plastic properly, even with microstepping ... Viktorvon VDX - Mechanics
Hi Anno, ... its sorted correctly with descending "last post", not with "unread posts" ... Viktorvon VDX - Administration, Announcements, Policy
... ich habe mir den Arduino Mega bestellt, da er nach meinen bisherigen Infos (mit Umdefinieren einiger Pins vor dem Compilieren der Firmware) softwarekompatibel ist und auch für künftige Erweiterungen oder 'Herumspielerei' mehr als genug Pins hat. Interessant ist die Arduino-Family allemal, vor allem da es auch schon eingige Quadcore-Boards (Quadruino/Multiduino) gibt, bei denen 4 Atmega168 auvon VDX - Altes Forum
Hi Marcus, ... the standard reprap can't but its adressed and there's development/experimenting in this area ... AFAIK actual firmware and tools can adress several extruders, so it's more the software generating the 3D-objects, where you have to apply supporting structures. Water soluble material could be molten sugar or a fast drying paste printed with a syringe-dispenser - here the adhesionvon VDX - 3D Design tools
Hi Marcus, ... either you design objects embedding cavities with a separation-layer for removing the inner debris or you can remove it from a hole from the outside or when fabbing with different materials, then you can use water-soluble support material and wash it away. With LOM-fabbing ist's similar - either separation-layers and/or a fine cutting hatch for the material in the inner cavitiesvon VDX - 3D Design tools
Hi proto, ... when going the LOM-way i don't need any supporting structures as the surrounding area acts in the same way. But then it's something tricky with horizontal object-surfaces - here i have to apply a fine hatch on the outside perimeter of the object (for cutting the neigboured sheet in small bits which don't stick) to separate the object after laminating ... Viktorvon VDX - 3D Design tools
Hi buzz, ... thanks, i already found the info - you can run the firmware on the Arduino Mega when redefining some pins ... Viktorvon VDX - For Sale
... when i was first time populatin and reworking an SMD-kit (wrong orientation of a SMD-IC's with 18 pins), i used normal solder with 0.5mm diameter, a thin tip and worked with a microscope. Sometimes i have to change/repair some SMD-PCB's in my daywork too - all with the thinnest available solder (0.5 or 0.25mm dia), sharp tip and microscope, what's no problem ... Viktorvon VDX - Controllers
... there are some 'intelligent motors' at nanotec: But it could be easier to start with the gen3-'5D-controller' or an Arduino Mega or Quadruino/multiArduino and common stepper-drivers ... Viktorvon VDX - Controllers
... here an image of my first milled PCB-prototypes (made 1984) lying on a board with my first lasercut-work (around 1994): The PCB-layout was made with a paintbrush-style program on an AtariST and the outlines then converted to vectorlines and output as HPGL for my selfprogrammed CAD/CAM and drivers for an Isel-CNC-mill. I made the lasercuts with a 'homebrewed' laserplotter - a 5Watt RF-CO2-lvon VDX - Controllers
Hi Bodgelt, ... which file-formats exports Kicad? Some thirty years ago i had to convert the data from a pixel image (hardcopy from the screen) into vector-outlines and reprocess them for my first CNC-mill (when home, i'll try to find some of the old prototypes). Today most PCB-programms can export at least one common format for milling or vector graphics intended for postprocessing in CAD. Bvon VDX - Controllers