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15 votes
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Assembled my first 3D-printer: Lead screw problem?

The threads of the screw are very damaged, this causes your brass nut to be damaged as well. This is hardly accountable by misusage, this is a production or handling error in the factory. You need to ...
0scar's user avatar
  • 36.2k
10 votes

Why aren't fixed build platform 3D printers popular?

Why is this so rare? Such kind of printers usually harder to assembles, calibrate, and maintain because 3 axes machine is a bit more complex than 2 axes. For instance, it's can be tricky to move an ...
Stepan Novikov's user avatar
8 votes

How do I wire the z-axis motors in parallel on the Prusa i3?

For some unknown reason, everywhere everybody is saying that Z stepper motors need to be connected in parallel... And this was always the only obvious way, until recently some people started to ...
Serge Rabyking's user avatar
8 votes
Accepted

Full steps mode for Z axis stepper controller

Focussing on the questions at hand: Is it possible to use full steps? This depends on your printer board. Many boards use dip switches to select the (micro) stepping mode of the stepper driver. E....
0scar's user avatar
  • 36.2k
8 votes
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How to calculate the proper layer height multiples?

that the NEMA17 motor would be using 400 Steps per mm in Z. configuration_adv.h tells that the microsteps on the Z-axis motor are 16. Easy. There are 400 ...
Tom van der Zanden's user avatar
7 votes

Ball screw: Maintaining Z axis position when motor is OFF

My question is a ball screw of pitch 4mm or 5mm, will it be able to Maintain it's position when motor is deenergized under a load of 15 kg shared by two systems. The detent torque of a typical NEMA ...
Tom van der Zanden's user avatar
7 votes

Marlin "Tune->Bed Z" vs "Tune->Babystep Z" vs Z Offset?

Tune -> Bed Z http://marlinfw.org/docs/features/lcd_menu.html#tune Per description in this table, this refers to the Mesh Bed Leveling process. It allows to modify all saved mesh z-offsets by the ...
mikezter's user avatar
  • 171
7 votes

Why aren't fixed build platform 3D printers popular?

As a frame challenge, they kind of are. It's just that the optimal, and in some sense only reasonable, design for a fixed build platform that doesn't move on any axis is the delta robot geometry. This ...
R.. GitHub STOP HELPING ICE's user avatar
7 votes

Assembled my first 3D-printer: Lead screw problem?

The notches are certainly abnormal. The screw appears to have taken an impact from a narrow cylindrical object. It's normal for rods and screws to be packaged independently, frequently wrapped in ...
fred_dot_u's user avatar
  • 11.8k
6 votes
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3d prints come up with ribbing on one side

Hmmmm In my experience when a printer has that bad of wobble it is still the Z axis. Your rods might be good, but are the two Z axis the exact correct distance and equal distance on the printer frame? ...
StarWind0's user avatar
  • 3,113
6 votes

Z-axis steppers and bed alignment problems

I assume you did everything according to the instructions but here is a checklist of what could be possibly wrong: Friction - check if you can rotate/move parts without lot of resistance Screws - ...
darth pixel's user avatar
  • 3,476
6 votes
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Alignment of dual Z-axis steppers

All the Prusa-based designs I've seen have only one end stop. While you are correct that it's theoretically possible for the two Z-drives to get out of sync, it's very unlikely in practice (barring ...
Carl Witthoft's user avatar
6 votes
Accepted

Is z-axis zero near the hotend?

Generally, Z-axis zero is when the hot end and the build plate are close to each other. Some printers keep the hot end up at the top, and bring the build plate up to reach it. Other printers keep ...
emackey's user avatar
  • 380
6 votes
Accepted

Any code to move up Z axis after finishing the printing?

You can use: G91 G1 Z10 G91 make the printer use ralative positioning, while G1 Z10 would ...
mac's user avatar
  • 4,725
6 votes
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What is this part and does it have to do with my my z-position is messed up?

Limiter Switch/Endstop That is the lever that is meant to trigger your Z-Endstop. The variant used in your case is on the cheaper end and is meant to look similar to this QIAOH KN12-1 limit switch: ...
Trish's user avatar
  • 22.2k
6 votes

Printer stops printing at the same spot for every model

This behavior can be explained by a truncated gcode file - the printer gets to the end of all that's there of the file, and considers it done. A truncated file can be a symptom of corrupt storage ...
R.. GitHub STOP HELPING ICE's user avatar
6 votes
Accepted

How to I eliminate these "squished" layers that appear on my prints?

After some thought, I decided to verify all of my assumptions. My primary assumption was that I had completed the assembly completely and correctly. This was not the case. I had not tightened the ...
Dennis Wurster's user avatar
5 votes
Accepted

Do I need to recalibrate z-probe offset every time I switch to a different layer height?

All modern slicers adjust the nozzle position for the first layer in accordance with your chosen layer height. You can see this in your gcode if you slice files with different layer heights. Before ...
Ryan Carlyle's user avatar
  • 6,616
5 votes

How to keep Z-axis motor from slipping when powered down

The simple way to do this is to use a self-locking screw pitch. Pretty much any single-start thread using a sliding nut cannot be back-driven so the load will not fall. Normal 8x8 trapezoidal thread ...
Ryan Carlyle's user avatar
  • 6,616
5 votes
Accepted

Is there a problem with removing a polished rod from the Z-axis?

First a resounding no. Not a good idea. Are you saying it works now that you have removed the smooth rod? That tells me for sure your issue was Binding. Which is a tricky problem to solve. Binding ...
StarWind0's user avatar
  • 3,113
5 votes
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Z motor not moving during auto home

Alright, I have figured everything out with the help of #reprap IRC community. Issue #1 - Z axis not moving during zero. Just as tjb1 suggested the issue was that it thought it was hitting the ...
user2698080's user avatar
5 votes
Accepted

Lead screws - M8 instead of M5?

as long as you match the parts that is ok. The m8 rod will give you more stiffness and will be harder to bend. As the result, you will have to calibrate the steps/mm settings in the firmware.
profesor79's user avatar
  • 1,982
5 votes
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Does anyone know the thread size (pitch and lead) of the Anet A8's lead screw?

I have the Anet A8, I confirm the threads are Tr8x8(p2). This is explained as "Tr" for trapezoidal thread followed by the nominal diameter in mm. The digits after the "x" denotes the lead of the screw ...
0scar's user avatar
  • 36.2k
5 votes

How bed leveling is achieved without table screws?

Prusa uses 9 marker points in the bed that are sensed with an induction sensor to determine the X, Y and Z position. Any deviation for skewness or bed level is compensated through the software. Please ...
0scar's user avatar
  • 36.2k
5 votes
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Problems with Z step

as per base of the pink printout it looks like the bed is far below the nozzle (level the bed) to check the Z steps/mm setting, the best way will be to home it, then from menu move Z by 50mm and check ...
profesor79's user avatar
  • 1,982
5 votes

Z-axis endstop not functioning after Marlin Firmware installation

After gaining more of an understanding of how Marlin works, I decided to look through the the pins file for the motherboard I am using "pins_ULTIMAIN_2.h". Sure enough, It had a the wrong pin number ...
Jeff Clark's user avatar
5 votes

TEVO Tarantula Z-Axis Lowering Too Far After Endstop Triggered

The soldering in the Tevo components is very low quality as I replaced/resoldered most of the end-stops. As the gantry goes down - please ensure that the cable is not pulled over (no contact) and ...
profesor79's user avatar
  • 1,982
5 votes
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Screeching Noise when moving the Z-Axis Down

I had this same problem. I attributed it to the linear bearings which ride on the 8mm travel rods. I did two things which ultimately eliminated the issue (since I did both at the same time, I'm not ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
5 votes

Why aren't fixed build platform 3D printers popular?

Within the realm of Cartesian machines (eg having orthogonal X, Y, Z axis) consider the sort of design you do see: the Ultimaker-like X-Y stage over a build platform which can drop. The question is ...
Chris Stratton's user avatar
5 votes

My 3D printer checks axes home during print, often wrecking the print

After watching the video, I see three unwanted behaviors, all consistent with a hypothesis that the printer is reading corrupted data from the gcode file: Moves to low but nonzero X or Y coordinate ...
R.. GitHub STOP HELPING ICE's user avatar

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