Recent Topics


by 3D-ME

RepRap is humanity's first general-purpose self-replicating manufacturing machine. It is an open-source project that focuses on the creation and development of 3D printers that can print (some of) their own parts.

More information can be found at the wiki: http://reprap.org/wiki/Main_Page

This group is a place to discuss and share files related to, but not limited to; printer designs, modifications/upgrades, calibration, etc.

Join to share your own RepRap related designs with this group!

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Gcode script to test belt tension?

by anthonyda

I'm having a lot of issue trying to fix my belt tension (I'm having some layer shiffting).

I was wondering if anyone had a Gcode Script which makes the extruder moves at different speed/angle to test the belt tension ?


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No extruder stepper motor output

by dlsmith57918

Not sure if this is a proper area to ask this question, but here goes.

I'm building a core xy type printer, and I have an Arduino Mega 2560 board running a Ramps 1.4 board. I have struggled through getting all the X. Y and Z axis steppers and optical end stops working properly, but I cannot get any output to the extruder stepper. I have tried all the obvious checks, tried a different stepper motor and swapping the stepper driver, but still no output. I have gone through all the Marlin code and it appears like I have it configured so that it should at least work even if it may need some fine tuning when I do get it to work.
I may buy another Ramps board, at less than $20 it's not a big deal, but if it is a software problem, I'd rather fix that.

Any ideas from the brain trust here on Thingiverse?

I can post my configuration files if someone wants to peruse them.

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Ramps 1.4 Dual extruder question

by madsrinker

Hello i am about to start building my own 3d printer from scratch using a ramps 1.4! I have uploaded a picture to the post with the exact ramp 1.4 i got!

I dont have all the parts yet so i have not started the build but i want to clear some things up first!

Here is the boards to choose from in marlin:

BOARD_RAMPS_14_EEB Arduino pins_RAMPS_14.h RAMPS v1.4 (Extruder, Extruder, Bed)
BOARD_RAMPS_14_EEF Arduino pins_RAMPS_14.h RAMPS v1.4 (Extruder, Extruder, Fan)
BOARD_RAMPS_14_EFB Arduino pins_RAMPS_14.h RAMPS v1.4 (Extruder, Fan, Bed)
BOARD_RAMPS_14_EFF Arduino pins_RAMPS_14.h RAMPS v1.4 (Extruder, Fan, Fan)

I want 2x e3d hotends and both of them needs a fan to keep the system working! So it is possible to connect 2 hotends with extruders AND their own fans? Or should i just plug the two fans for the e3d hotends directly to the power supply? Cause i do need 3x fans and i cant find any tutorials explaining this exact issue!

1x Part cooling fan
2x e3d hotend fans

since where you originaly connect the hotend fan in the ramps 1.4 is being changed out with another heating cartridge i dont really understand where to connect the 2 e3d fans!

Sorry having trouble putting my thoughts to words in English when its technical, i hope you understand my issue!

Keep in mind its my first time building a printer like this i only build kits before and have never used ramps 1.4. I know its possible but i hope i dont have to buy one of those stepper motor extension boards!

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E1 socket problem (temp sensor defect marked defect)

by tc1967uk


Total 3D printing newbie here, apoloies in advance if my terminology is wrong.

I have a dual head K200 delta printer with a heated bed which I put together 8 months ago, but gave up due to frustration of the following error in Repetier:

temp sensor defect marked defect
Error:Printer set into dry run mode until restart!

I've tried again today, and all 3 thermistors (and the spare) work fine, but socket E1 on the BT7200 V1.8.26 RAMPS PLUS 2 is giving me -20oC readings no matter which thermistor I put in.

Even though I’ve tried to tell it there’s only 1 extruder (in Printer Settings), the display right at the bottom of Repetier still thinks there’s 2.

I've emailed the seller and the company I bought it through, to see if they can help.

In the meantime - is there any way to make Repetier believe that I only have 1 extruder, or change things so that I can use the heated bed socket for the other extruder instead and just try to make due without the heatbed for now?

Hope you can help.

HE3D_K200 k200 ramps thermistor
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