Look at my prints, they are not smooth enough. What is the problem? Thanks :) G-Code: [www.dropbox.com] Printer video: [youtu.be] Printer Specs Tronxy i3 Reprap Extrusion Width: 0.4mm Layer height: 0.2mm Nozzle: 0.4mm Controller: Melzi 2.0_V5 Display: 2004A LCD Fİrmware: Marlin Filament: ABS Bed temp: 85 Ext temp: 225 Slicer speed settings on the attaches. https://reprap.org/forum/read.php?262,744462,744462#msg-744462 Sat, 12 Sep 2026 07:10:31 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?262,744462,744955#msg-744955 https://reprap.org/forum/read.php?262,744462,744955#msg-744955 Montiey Printing Fri, 03 Feb 2017 08:38:43 -0500 https://reprap.org/forum/read.php?262,744462,744932#msg-744932 https://reprap.org/forum/read.php?262,744462,744932#msg-744932
Not really having this problem but this is good information for the new printer guys.

Thanks from those of us that are on the steep learning curve!!!

8-)]]> doodady Printing Fri, 03 Feb 2017 07:32:57 -0500 https://reprap.org/forum/read.php?262,744462,744586#msg-744586 https://reprap.org/forum/read.php?262,744462,744586#msg-744586
- is the firmware configured to use PID control for the heatbed? PID gives tighter control of the bed temperature, and if the bed temperature is held steady it shouldn't flex much. The (common) alternative to PID control is called bang-bang which is a much less accurate method (intended for mains powered heaters controlled by a relay which can't cope with high frequency switching). Do you print from host software? If so, I think most of the host programs can show a graph of bed temperature so you can see how much it varies.

- you could try adding a piece of glass on top of the heat bed. If you clip it only on one side the glass should stay flat even if the bed bows. The downside is that the contact between the bed and the glass won't be very good, and the time taken to get to printing temperature will be much longer.

- part of the problem may be the design of the mounts holding the bed to the Y carriage. If they don't allow for expansion they may actually be causing the flex. You could look at redesigning the mounts to allow for bed expansion, possibly just using three points, making sure the screws are a loose fit in the holes and have smooth washers between the springs and the bed.]]> JamesK Printing Thu, 02 Feb 2017 06:59:47 -0500 https://reprap.org/forum/read.php?262,744462,744566#msg-744566 https://reprap.org/forum/read.php?262,744462,744566#msg-744566 kaaveka Printing Thu, 02 Feb 2017 05:48:53 -0500 https://reprap.org/forum/read.php?262,744462,744483#msg-744483 https://reprap.org/forum/read.php?262,744462,744483#msg-744483 youtu.be] if you want a specific place to look tell me i can record a video.]]> kaaveka Printing Wed, 01 Feb 2017 22:56:44 -0500 https://reprap.org/forum/read.php?262,744462,744471#msg-744471 https://reprap.org/forum/read.php?262,744462,744471#msg-744471 JamesK Printing Wed, 01 Feb 2017 21:45:05 -0500 https://reprap.org/forum/read.php?262,744462,744470#msg-744470 https://reprap.org/forum/read.php?262,744462,744470#msg-744470 kaaveka Printing Wed, 01 Feb 2017 21:31:46 -0500 https://reprap.org/forum/read.php?262,744462,744466#msg-744466 https://reprap.org/forum/read.php?262,744462,744466#msg-744466 JamesK Printing Wed, 01 Feb 2017 20:56:11 -0500 https://reprap.org/forum/read.php?262,744462,744465#msg-744465 https://reprap.org/forum/read.php?262,744462,744465#msg-744465 kaaveka Printing Wed, 01 Feb 2017 20:49:56 -0500 https://reprap.org/forum/read.php?262,744462,744464#msg-744464 https://reprap.org/forum/read.php?262,744462,744464#msg-744464
It's difficult for people to give you relevant advice unless you provide plenty of information about your printer and how you are using it. Photos of the printer showing it's construction and type would help, along with the type of filament you are using, and the print settings such as speed, temperature, layer height and nozzle size for example.

There's a page describing the sort of information that's needed here: [reprap.org]]]> JamesK Printing Wed, 01 Feb 2017 20:47:21 -0500 https://reprap.org/forum/read.php?262,744462,744462#msg-744462 https://reprap.org/forum/read.php?262,744462,744462#msg-744462 G-Code: [www.dropbox.com]
Printer video: [youtu.be]

Printer Specs
Tronxy i3 Reprap
Extrusion Width: 0.4mm
Layer height: 0.2mm
Nozzle: 0.4mm
Controller: Melzi 2.0_V5
Display: 2004A LCD
Fİrmware: Marlin
Filament: ABS
Bed temp: 85
Ext temp: 225
Slicer speed settings on the attaches.]]> kaaveka Printing Wed, 01 Feb 2017 20:25:15 -0500