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General discussions. For specific printers / electronics / fabrication methods / softwares, please see other sections.
Re: no slower feedrate possible - 9 years ago
I am trying to convert my 3d printer into a laser cutter/engraver/etcher. I am using the same electronics as you, Arduino mega, ramps 1.4 and I'm using marlin. How do you connect the laser to the ramps board? Also are you able to have the laser be power % control or is it just simply on/off. What software do you use to give you the proper g code to?by tsmith01 - Repetier
Re: z axis problems...homing issues - 9 years ago
what needs to be changed with the marlin firmware to allow cnc plasma cutting? if you create a one layer object that you want cut out of steel using CAD and generate the g.code using a 3D printing host software such as repetier and send the g.code to the arduino wouldn't it cut out the object just like it was printing it? one of the problems that i can think of is that during 3D printing the axisby tsmith01 - General
Re: z axis problems...homing issues - 9 years ago
Hi, I am in the process of building a cnc plasma cutting system and i was wondering if you guys could answer some of the questions i have. First off i built a 3d printer so i am pretty familiar with most things. I built a version of the prusa i3. It uses an arduino mega and am running marlin firmware. i was wondering if you can use most of the same hardware and software that is used for 3d printiby tsmith01 - General
print cost - 9 years ago
I'm trying to calculate print cost based on how much filament was used. This would be very easy if a had a scale with precise measurements. So my question is has anyone calculated the weight per unit of length of filament. I'm using 1.75mm PLA material. Slic3r tells you how many mm of filament will be used in the print so all I need to know is how much a mm of 1.75mm PLA weighs to calculate the cby tsmith01 - General
Re: x and y axis work, but z axis makes the motors buzz and stick - 9 years ago
try slightly backing out the screw on the z axis stepper driver. the problem might be that theres not enough current going to the z motors. I had the same problem.by tsmith01 - General
Re: Problem with Nozzle touching the print after first layers & more - 9 years ago
i had the same exact problem with my prusa i3, regarding the z axis problem. what i did was slightly back out the screw on the z axis stepper motor driver. I believe what this does is allow more current to flow. my printer would raise z axis exactly 10mm if i told it to raise 10mm, 50mm if i told it to raise 50, and 100 if i told it to raise 100. what it wouldn't do is raise .1mm if i told it toby tsmith01 - General
Re: MK7 extruder? - 9 years ago
I was previously using a J-head hot end and extruder set up and was having a ton of problems with it. I ended up purchasing the MK7 extruder and so far its been working pretty well. My only complaint is that there's a lot of stringing. Is there something I can do with the settings in slic3r to prevent this?by tsmith01 - General
MK7 extruder? - 9 years ago
I want to upgrade the extruder on my prusa i3 printer. I was thinking about the mk7. Does anyone have any experience with this? Any suggestions on what to get?by tsmith01 - General
Re: temperature reading problem - 10 years ago
Thanks, that was it. Once I allowed the hot end to heat up everything worked fine. Anyone using a j-head hot end who can give me any temperature suggestions? I'm using 1.75mm PLA.by tsmith01 - General
Re: temperature reading problem - 10 years ago
How do you disable cold extrusion lock?by tsmith01 - General
Re: temperature reading problem - 10 years ago
I ran into another problem. After messing around with the marlin firmware and loading it into the arduino board I noticed my extruder motor is not working. It's not the wiring because when I hooked it up to the x axis slot it works fine. I'm guessing I screwed up something in the marlin firmware again. Any idea as to where to start looking in marlin. Like which line of code would deal with the exby tsmith01 - General
Re: temperature reading problem - 10 years ago
Hey thanks for the help. I fixed it, it was in the code. Somehow I had a negative value in the temp sensor line of code. That's what screwed it upby tsmith01 - General
Re: temperature reading problem - 10 years ago
Yes I did load it on myself. Thanks I'll check that out.by tsmith01 - General
Re: temperature reading problem - 10 years ago
Quotecdru Did you adjust your config file for the appropriate thermistor type? Every thermistor has different temperature resistance curves for the temps it's to measure. using marlin how do I check/fix this?by tsmith01 - General
Re: temperature reading problem - 10 years ago
They are both the same thermistor. Just one plugged into the T0 port and one plugged into T1. T1 which is for heated bed reads 26 degrees Celsius according to the lcd. The lcd also reads the hot end as 500 degrees Celsius which must trigger the max temp error. It's acting as if there's no thermistor plugged in for the hot end.by tsmith01 - General
temperature reading problem - 10 years ago
Hi there, I'm new to this site and also new to 3D printing. I recently ordered all the parts to build a prusa I3. I have everything assembled and started hooking up the electronics. I currently have the lcd hooked up and working along with the x, y, z, and extruder motors. I also have my heated bed thermistor and my hot end thermistor hooked up. That's when I noticed a problem. My heated bed therby tsmith01 - General