My experience is with teacup, but I imagine it's similar for all firmwares. There's no boolean logic that says extrusion is currently ongoing, there's just a periodic step when required. The steps could be several seconds apart (for a ridiculously slow extrusion rate) or 1/1000th of a second apart, and in both cases extrusion is "occurring". If you wanted to modify code to do this, you could uby Rezer - Firmware - mainstream and related support
I was kind of happy to see mention of support for canned cycles since I use teacup to run a small cnc mill, but after taking a look at the source code I don't see any new gcode handling implemented in the gcode_process.c file. Am I just looking in the wrong place or misunderstanding what you mean by canned cycle?by Rezer - Firmware - experimental, borrowed, and future
QuoteDust ignore the previous asshole who thinks he is funny... If it surface mount component, you probably need a hot air reflow station. There are many youtube video on this. Funny, I had given the OP enough credit to realize my post was a joke. Apparently you have not, and feel the need to expressly state that it should be ignored. Perhaps if the OP wants some useful information, then thby Rezer - Reprappers
Just use a printed circuit board component replacement tool. You can find it at target, usually the aisle next to housewares.by Rezer - Reprappers
Just cause they turn doesn't mean everything's wired right. I had a similar issue when I first started hooking up steppers and it wound up being a wire that wasn't making contact very well, and the motor did turn but it had absolutely no torque to it. I'd also make sure you try very slow speeds as well as hooking up the motors to a different stepper driver to rule that out as the problem.by Rezer - Stepper Motors, Servo Motors, DC Motors
QuoteFri Did anyone ever combine an extruder cooling fan with a "print" cooling fan. I would like to use the fan that cools the hotend, to cool the abs/pla when needed. Any suggestions? You can't have one thing do different things at different times without having a way to toggle the functions. The only way you could do it with just a fan would be to have it blow on one thing forward and anotheby Rezer - General
There's one huge issue you didn't seem to address: weight. A build platform of nearly (over?) a meter squared is going to be massive, probably at least 20 times heavier than your typical reprap. How do you intend to get print speeds anywhere near what a small printer can do using the same nema 17 motors? You're probably looking at reliable axis acceleration orders of magnitude below what a prby Rezer - Reprappers
Quoteohioplastics You're all a bunch of player haters. Also, cars are neither air nor water cooled. They are both. It's a system. The engine is water cooled by conduction, the water is air cooled by convection. Duh... To be more specific, it's not the player I'm hating. It's his game. If he came in saying "Hey look, I made a water cooled hot end, maybe try it out and here's the design," I wouby Rezer - General
Better than any hotend on the market huh? My eyes just rolled so hard it knocked me out of my chair. I don't know what your goal is, but it doesn't really matter. The first question you should be asking yourself is whether you're creating a solution to a problem that actually exists. You are not.by Rezer - General
QuoteShadowRam So Stainless doesn't conduct heat nor heat up well at all. 18 compared to 0.25 But I think they failed to take into account that stainless steel also only expands at ~16 (x10-6/K) So not only does these stainless tubes not absorb heat, but they also don't expand at all. Double Whammy. I get the sense that you have no idea what those numbers mean. 18 means it's a far better condby Rezer - General
Quoteaduy well i can produce the pcb traces at whatever width I want, and I also understand that the insulation on top of the pcb would need to be something thats hard to scratch away, perhaps some high temperature paint. also I could add a fuse inline with it. ok well if the mains is too volatile for a home made pcb, has anyone used a higher voltage supply like 48v to power a heated bed, you coby Rezer - General
What firmware do you currently have written to the chip? That sorta sounds like the behavior of the gen7 test firmware, except the heater light should be flashing. Have you tried monitoring the serial port from the arduino ide while running the test firmware? What OS are you using, what programmer, etc? Also, I'm no expert, but your board looks to me like you need to be more liberal with theby Rezer - Next Wave Electronics Working Group
Really? I didn't realize the signature was contained in the bootloader itself...my bad. Should still work though, right? Oh, and I checked the mcp2200 driver version on my windows 7 64 bit machine...it was 1.2 (5.1.2600.3), and I uninstalled it and plugged the board back in. It automagically pulled 1.3 (5.1.2600.7) from windows update and still works fine *shrug*. I have UAC turned off on myby Rezer - Next Wave Electronics Working Group
Traumflug Wrote: ------------------------------------------------------- > Undoubtly I'm keen on finding out on what makes > the difference. > > Did you install a more recent driver? I'm not sure to be honest, I installed the 64 bit driver from the mcp2200 product page and everything has "just worked". I can give more specifics on which version of the driver I have installed whenby Rezer - Next Wave Electronics Working Group
Well, it works for some of us at least...running 64 bit windows 7 myself and haven't had any problems communicating with the board.by Rezer - Next Wave Electronics Working Group
It might be worth a shot to just try burning a hex file directly to rule out any serial comms problems. Turn on the verbose output in the Arduino preferences, load the test sketch from github and click "Verify". Locate the output folder for the .hex file, and burn that hex file as you would the bootloader (It shouldn't overwrite the bootloader). If it works properly, you have a serial problem.by Rezer - Next Wave Electronics Working Group
As far as I'm aware, the P indicates that it will operate at a lower voltage and has slightly different BOD behavior...neither should matter for the purposes of a Gen7 board, so changing the signature should be sufficient.by Rezer - Next Wave Electronics Working Group
Mirroring's not picky, mirror on a diagonal if you wantby Rezer - Next Wave Electronics Working Group
Are you using toner transfer? Think about how the image prints out vs how it must be oriented on the board. For the bottom of the PCB, you can just lay the PCB on the paper with the toner side facing up and everything is oriented correctly. Now if you lay the top image on top of the board, you'll see that to orient it correctly the toner side will be facing up away from the board, so you haveby Rezer - Next Wave Electronics Working Group
Open geda PCB and click File > Export Layout..., then select PS. At this point I'd recommend deselecting auto-mirror, since it mirrors exactly the opposite of what you would need if you're doing toner transfer. Then just print out the pages you need and mirror as appropriate.by Rezer - Next Wave Electronics Working Group
They're geda pcb files...just open it up and generate the gerbers from there. http://www.geda-project.org/by Rezer - Next Wave Electronics Working Group
peter6960 Wrote: ------------------------------------------------------- > Even though USBtiny fails on the verification > (reads), it actually writes perfectly > > You can safely ignore that... If there was an > issue sketch upload would fail > > Set arduino to verbose mode - you'll see AVRDUDE > writes all the way to the end. The read back to > verify is all thatby Rezer - Next Wave Electronics Working Group
The only reason usbtiny has the 64KB limitation is because they had to do a little trickery to get the usb implementation and programmer to fit on an attiny2313...addressing larger than 16 bit wouldn't have fit. The "fix" is to get practically any other programmer, as I haven't heard of any others that have a similar issue.by Rezer - Next Wave Electronics Working Group
It can program it, but it can't address the full memory. The usbtiny uses a 16 bit *byte* address, so it can only address the first 64K of memory before it wraps around and starts overwriting what was already written. You might say "but my bootloader is only about a kilobyte!". Well, the AVR bootloader is written to the last few kilobytes of the program memory space. I believe with default rby Rezer - Next Wave Electronics Working Group
That sounds an awful lot like some kind of short circuit protection is kicking in...you might want to check each of the 5V and 12V pins against ground and each other on the atx connector.by Rezer - Next Wave Electronics Working Group
Hey that's a start...did you match the load capacitors to the crystal, or just use what was specified by the board? As long as you have it out, it might be worth a shot to try some different values on a breadboard to get that thing oscillating.by Rezer - Next Wave Electronics Working Group
Alright, thought it was worth asking. As for the latest problem, if you burned the hex file directly I believe you have to disable the boot reset vector fuse for it to work properly. If that fuse is set it tries to load the bootloader first from 0x7C00, and writing the hex file would have killed the bootloader meaning there's nothing at that memory location. So maybe try changing hfuse from 0xby Rezer - Next Wave Electronics Working Group
xoan Wrote: ------------------------------------------------------- > > If the USB is unplugged after that and plugged > back in you have to power cycle the board, wait > for the caps to discharge, and plug it back in. > I'm assuming this is a side effect of powering the > MCP2200 from the board instead of the usb port and > not shoddy soldering on my part, but I'm less thanby Rezer - Next Wave Electronics Working Group
Is it doing this when first plugged in, or just after trying to unplug the USB cable and plug it back in? As far as I'm aware, if it's after unplugging the cable, that's just how it works. The power to the board has to be completely shut off long enough for the standby LED to go out, and then turned back on. Then it should enumerate properly. It's a result of having the mcp2200 powered by theby Rezer - Next Wave Electronics Working Group
Well, maybe this is a stupid question, but did you remember to set the fuses with avrdude? If you didn't, the atmega is still clocked at 1mhz using the internal oscillator and wouldn't work at the expected bitrate with the serial connector. I doubt the 20mhz crystal was the problem initially, cause it wouldn't have even been in use unless you managed to program the fuses before your original prby Rezer - Next Wave Electronics Working Group