PrusaSlicer With Automatic Bed Mesh Visualization
 
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hyiger
(@hyiger)
Famed Member
PrusaSlicer With Automatic Bed Mesh Visualization

I've modified my PrusaSlicer Filament Edition to now also support running a bed level, import the mesh and visualize it within PrusaSlicer. This is similar to existing OctoPrint plugins. To use it plug your computer into the printer with a USB-C cable. Run PrusaSlicer, go to the Calibration menu and run "Probe Bed Mesh..." you can also retrieve an existing one if it's been run and stored previously. You can install it from here:  https://github.com/hyiger/PrusaSlicer/releases/tag/v1.2.0-filament-edition  

I'll be adding more features to it in the next few days. 

Posted : 14/04/2026 2:29 am
4 people liked
hyiger
(@hyiger)
Famed Member
Topic starter answered:
RE:

Forgot to add that this will work with any Prusa printer that supports G29 Bed Leveling. So Mk3, MK4, Core One and XL. However I've only tested this on a Core One. 

Posted : 14/04/2026 2:40 am
1 people liked
jan.d.slay
(@jan-d-slay)
Reputable Member
RE: PrusaSlicer With Automatic Bed Mesh Visualization

Hi Hyiger.

As always, excellent work!

I'll test this on the Prusa XL.

I'll be in touch.

Mods for Core One: Core One HT 450 degrees, Comfortable display , Very fast print start and Reducing noises
Mods for Prusa XL: Very fast print start

Posted : 14/04/2026 3:17 pm
hyiger
(@hyiger)
Famed Member
Topic starter answered:
RE: PrusaSlicer With Automatic Bed Mesh Visualization

 

Posted by: @jan-d-slay

Hi Hyiger.

As always, excellent work!

I'll test this on the Prusa XL.

I'll be in touch.

Thanks for testing it for me as always! I'll be adding a guide for tramming the bed later this week. 

Posted : 14/04/2026 3:28 pm
jan.d.slay
(@jan-d-slay)
Reputable Member
RE:

Thanks for testing it for me as always! I'll be adding a guide for tramming the bed later this week. 

Hi, Hyiger.

Everything went smoothly, and it's working as it should.

When the last waypoint has been reached, this is what I see.

Are the recorded waypoints significantly higher than the actual waypoints? It’s probably just a minor error.

I have another suggestion that might make more sense for the Prusa XL, at least for me.

  • I would attach the calibration pin with the print plate removed.
  • Then place the Nextruder there several times to establish a good offset, so to speak.
  • Then remove the pin, put the print plate back on, and start measuring.

Why am I describing it this way? I don’t think the homing point at the front left is ideal. It should be a point that’s truly outside the print bed—that’s my opinion.I can adjust all 16 tiles individually with 4 screws each. So I have 64 adjustment points that I can fine-tune.

Good job!!! 😎 

 

Mods for Core One: Core One HT 450 degrees, Comfortable display , Very fast print start and Reducing noises
Mods for Prusa XL: Very fast print start

Posted : 14/04/2026 6:21 pm
hyiger
(@hyiger)
Famed Member
Topic starter answered:
RE: PrusaSlicer With Automatic Bed Mesh Visualization

 

Posted by: @jan-d-slay

When the last waypoint has been reached, this is what I see.

Are the recorded waypoints significantly higher than the actual waypoints? It’s probably just a minor error.

It's definitely a bug. "49" is hard-coded which is only relevant for a MK4 bed. The XL does 144 probes and the Core One L does something in-between. I'll fix up the code and create a patch release. 

Posted : 14/04/2026 6:38 pm
1 people liked
hyiger
(@hyiger)
Famed Member
Topic starter answered:
RE: PrusaSlicer With Automatic Bed Mesh Visualization

@jan-d-slay the patch is here: https://github.com/hyiger/PrusaSlicer/releases/tag/v1.2.1-filament-edition it'll be probably another 30 minutes or so for the builds to show up so check back in 45m-60m. 

Posted : 14/04/2026 7:23 pm
hyiger
(@hyiger)
Famed Member
Topic starter answered:
RE:

New version 1.3.0 available here: https://github.com/hyiger/PrusaSlicer/releases/tag/v1.3.0-filament-edition

What's new

This release is a top-to-bottom upgrade of the bed mesh feature.

  • Bed heating before probing — the bed warms to operating temperature (default 60 °C) before probing, so the resulting mesh matches what your prints actually experience. A cold-probed bed misrepresents the first layer because the PEI sheet flexes when heated.
  • Configurable probe settings — nozzle temperature, bed temperature, and (on XL) probe-all-tools are now editable before each run, instead of being hardcoded.
  • Accurate progress bar on every Prusa printer — the probe progress now reads percent directly from the printer firmware, so it's correct on the XL, iX, MK3.5, and MINI (these were previously wrong or missing).
  • Save bed mesh to CSV — keep a record of your current mesh on disk.
  • Load bed mesh from CSV — display a previously saved mesh without re-probing.
  • Compare bed meshes — load a baseline mesh and see the difference between it and your current one. Great for answering questions like "did my bed get worse after shipping?" or "did re-tightening the screws actually help?"
  • Warp report — the legend now shows bed tilt (in arc-minutes), how much true warp remains after the tilt is removed, the worst single point, and a color-coded Excellent / Good / Marginal / Bad quality grade against an editable threshold.
  • Iso-height contour lines — optional smooth contour lines drawn over the heatmap at adjustable height intervals. Helps you read the bed's topography at a glance.
  • Per-cell value labels — optional toggle to show each probe point's height value directly on the heatmap.
  • XL per-tool probing — optionally probe all extruders in a single cycle. Switch between T0, T1, T2... in the legend to view each tool's mesh; the warp report and save/compare work on whichever tool is selected.
  • Smarter cancel — the first cancel click waits for the current probe phase to finish (since G29 can't be cleanly interrupted mid-probe), and a second click offers an emergency stop for when you really need to halt the printer immediately.
  • Clearer error messages — when another application has the printer's USB port open (PrusaConnect, OctoPrint, Pronterface, etc.), the error now says so by name instead of showing a generic "Permission denied".
  • Smoother heatmap — the rendered mesh is finely tessellated and the contour lines are anti-aliased, so curves read as smooth rather than segmented.

This post was modified 3 days ago by hyiger
Posted : 15/04/2026 12:20 am
1 people liked
jan.d.slay
(@jan-d-slay)
Reputable Member
RE: PrusaSlicer With Automatic Bed Mesh Visualization

Nice 👍👍 i will test it again.

Mods for Core One: Core One HT 450 degrees, Comfortable display , Very fast print start and Reducing noises
Mods for Prusa XL: Very fast print start

Posted : 15/04/2026 6:00 pm
ssmith
(@ssmith)
Estimable Member
RE: PrusaSlicer With Automatic Bed Mesh Visualization

A very nice tool! v1.3.0 works as expected on the XL, 1 and 5 head modes. 

Posted : 16/04/2026 3:09 am
1 people liked
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