Quotekd6hq Well, as long as it works, it can't be all bad. If you don't mind how do you have the laser connected? What turns it on and off? I have it connected to the D9 or fan connection on the Ramps board. Any PWM connections on any control board should work too. The laser came with a 12vdc power supply. I clipped off the barrel connector and tied this into the Ramps. I had to set the board toby Shank man - General Mendel Topics
Quotekd6hq Well done! Interesting setup. Where did you find the Y adapter? Are you using this laser ? ? thanks The gears for the Y adapter are scaled up versions of the big gear for a Wades Geared Extruder. The rest of the set-up was made in Openscad. It would be better served with a pulley and belt approach but I wasn't sure on a method to splice a belt together Overall It is a piss-poor dby Shank man - General Mendel Topics
With a inexpensive Eleksmaker 2.5w blue laser module and a rotary Y-axis adapter, I wanted to see if it was possible to etch these acrylic tumblers. Overall I'm happy with the results.I'm coating the surface with a dry erase marker and if its not put on uniformly some of it gets embedded in the molten acrylic and can't be removed. The rest of the marker washes off with warm water. I'll need to exby Shank man - General Mendel Topics
QuoteTraumflug QuoteShank man I’m kicking myself for not buying a extra MCU when they were available Quoteobelisk79 That is an interesting adapter. So you two prefer to buy a $6 adapter plus a $4 chip over a $5 genuine chip? One reason against designing a new(er) board is the observation that quite a number of people try very hard and often at additional expenses to avoid buying from the origiby Shank man - Next Wave Electronics Working Group
removedby Shank man - Next Wave Electronics Working Group
removedby Shank man - Next Wave Electronics Working Group
Plotting pictures is not all that different from regular printing. The plot is pretty much just a single layer print. I use the free programs Blender, Inkscape & Slic3r to create the G-code. Cura has the ability to import JPEGS & bitmaps to create g-code but these raster images don't slice well. Using vector drawings/SVG files or images of vector drawings will produce the best results .by Shank man - General Mendel Topics
I know this posting is contrary to what this site is about but lately I just can't find anything to print that interests me.I'm sick of taking things off of Thingivers just for the sake of printing. I thought I'd switch things up a little. Turning printers into plotter is pretty common but I don't see where anyone is taking advantage of the varieties of inks that are available. I got these Sugarby Shank man - General Mendel Topics
Sorry for the crappy advise above. Using shielded cable, twisting or even braiding your cables is always good practice. I think there was a topic about wire management on this forum a while back. I've heard of people using stranded 22awg shielded cat5 cable for motor and limit switch wiring.by Shank man - Reprappers
Hello there's no shame in just buying a kit. Maybe a Prusa 3 kit of some sort. There's usually youtube vids to help the assembly process.by Shank man - Mechanics
Thank you Wurstnase That's exactly what I needed. Problem solved.by Shank man - Firmware - mainstream and related support
Try increasing the number of steps in this part of the firmware /** \def ENDSTOP_STEPS Number of steps to run into the endstops intentionally. As endstops trigger false alarm sometimes, Teacup debounces them by counting a number of consecutive positives. Use 4 or less for reliable endstops, 8 or even more for flaky ones. Valid range: 1...255. */ #define ENDSTOP_STEPS 8by Shank man - Reprappers
Slic3r used to include a nozzle lift command in the startup g-code if you see that line after the home axes command get rid of it. All it does is cause the Z to over ride the limit switch and plunge the nozzle into the bed also check your firmware settings to see if these lines are defined. #define min_software_endstops true // If true, axis won't move to coordinates less than HOME_POS. #defiby Shank man - Reprappers
Slic3r used to include this automatically in the startup code. get rid of the nozzle lift line if you have it. all it did was cause the nozzle over ride the limit switch and plunge into the bed look at your firmware settings to verify the min and max end stop settings are defined #define min_software_endstops true // If true, axis won't move to coordinates less than HOME_POS. #define max_sby Shank man - General
A possibility there is a command in your slicer start up G-code. Look there.by Shank man - Reprappers
Using Inkscape, Blender & Cura I was able to create the G-code needed to make a Gen7 2.0 circuit trace mask for a copper cladded board. I still need to clean up the STL file a little bit but it does show a lot of promise. If anyone is interested I'd be more than happy to post the STL file once its all cleaned up. Prusa 2 making a etch maskby Shank man - Controllers
I like to power my heat bed through a relay but once the heat bed heats up the relay starts chattering. I tried to enable the Bang_Bang option in Teacup but the relay still chatters. Do I need to comment out some PWM settings somewhere? Any help is appreciated. /** \def BANG_BANG Drops PID loop from heater control, reduces code size significantly (1300 bytes!). */ #define BANG_BANG /** \deby Shank man - Firmware - mainstream and related support
The very first print from the new board came out pretty good. I still have to fine tune some firmware settings but that should be a simple matter. First Gen7 board print The total build cost ended up being a little over $ 125.00. This includes a new 450 watt ATX power supply and 4 - DRV8825 stepper drivers from Amazon. Not a bad price for a 32 bit printer controller. Also it is user servby Shank man - Controllers
Dust many many thanks for the response It turns out the X_MIN_PIN was set correctly all I had to do was uncomment the # define X_INVERT_MIN lines and now the printer homes like its supposed to. I know its hard to diagnose a printer sight unseen but you got me looking in the right area and now the problem is no more. I'm one step closer to wrapping this up. #define X_STEP_PIN PIO1_5 #defineby Shank man - Controllers
Thanks Dust, that makes perfectly good sense. But I'm back begging for even more help. I think this is more of a firmware issue I'm using Pronterface to control the motors. When I hit +10 the motors move in positive direction 10mm & when is -10 pressed they move in the reverse direction 10mm But when I home the motors they move away from the end stops . I've attached my firmware if anby Shank man - Controllers
I need some help with the end stops. I hate to ask stupid questions but I'm stumped My limit switches are wired in a normally closed state. With the RAMPS/Marlin combo whenever I pressed the home button in Pronterface the homing sequence has always been X first , Y second & Z last. With the switches wired in series and if Y was already homed ( opening up the circuit ) how does the Xby Shank man - Controllers
I now have Octopi installation next on my to do list. looking at the circuit diagram, I have a better understanding on how the end stops work. Unlike a RAMPS1.4 board where each switch is assigned a pin on the MCU, the Gen7 board assigns one MCU pin for all three switches. The RAMPS board allows testing for the condition of each individual switch where as the Gen7 tests them as a whole. The Gby Shank man - Controllers
Thanks again Traumflug. This time for pointing me in the right direction. After flailing about and wasting 5+ hours trying to get the Windows programs to compile and upload the firmware, I was becoming a little frustrated and decided to give Ubuntu a try. I burned 3 versions of boot disks, ubuntu V8.04.0, V11.10 & V11.04. All old versions I know but all I have is a 13 year old Sony Vby Shank man - Controllers
thank you Traumflug. I am grateful for the help I am becoming increasing enamored by this little board. One feature that stands out is the use of the ATX board connectors and using a ATX power supply as a power source. This is a clever approach, Not only does it eliminate any chance of making a wrong connection, the tight fitting receptacle connections will be less prone to long term failuby Shank man - Controllers
Progress is slow but the board is coming together. I expected to be finished by now but never having made a circuit board before this is all new to me. I encountered a few setbacks along the way. I had soldered a dozen or so components to the board and found out why the ceramic capacitors looked different than the ones pictured. I had mistakenly ordered ceramic DISC capacitors instead ofby Shank man - Controllers
This is a perfect opportunity to learn Openscad and create a STL for the part you needby Shank man - General
Using the toner transfer method to create a usable PCB must take a special set of skills. Skills in which I am severely lacking. It took me a 1/2 dozen tries to make what I believe to be a usable Gen7 PCB. I repeated the steps I used for the last one to make a second one. The second one turned out only slightly better. Both look kind of rough but I verified continuity of all the traces and maby Shank man - Controllers
I'm attempting to build a Gen7 board-ARM 2.0 by following the instructions on the Wiki page. I'm not trying to save any money but am only doing it in the pursuit of knowledge. If it works I'll just use it to replace the RAMPS on my antique Prusa2. So far everything is on order. I attached a list of my purchased parts from Mouser Electronics. It pretty much covers everything with the exceptioby Shank man - Controllers
When I bought my chimera I checked the heater cartridge resistance before assembling the hot end. One was at 6.3 ohms and the other was 6.5 ohms. 6.1 doesn't sound too far out of line. Is it a 25 watt cartridge? I think the 25 watt has blue leads and the 40 watt ones are red.by Shank man - Printing
You will have no need for the glass if you switch to the aluminum. Silicone heaters don't weigh much more than the pcb heaters. Don't over think this, the motor you have is most likely more than adequate.by Shank man - General