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FAQ & troubleshooting

Quick fixes for the most common snags while configuring and exporting. Look up the technical terms around the model in the Glossary.

My part is bigger than the print bed

When a part is too big, PrintHaus splits it automatically at export, across the long axis, and joins the pieces with connectors so you can plug them back together after printing. First check in the Export step that your print target and bed size are right:

  • Bambu Studio / OrcaSlicer / PrusaSlicer: the bed comes from the printer you pick.
  • STL export: enter your own build plate size. The lower limit depends on the scale — 250 mm up to 1:40, 200 mm up to 1:50, otherwise 150 mm.

If a part category is still flagged as "doesn't fit flat on the print bed", or the export reports too many print-bed parts, pick a smaller scale (larger denominator) or a larger bed.

How the joints look and fit is covered under Connectors.

Connectors and separate parts are missing at small scales

From a very small scale onward (from 1:100), PrintHaus exports each floor and the roof as one solid body — without connectors and without separate printed parts.

Window frames and muntins are included, fused firmly into the body, in the walls of extensions too. Their profile is print-constant and stays between 0.9 mm (1:100) and 0.6 mm (1:285) wide. Doors remain a plain cutout; glazing is only added via Close openings.

Want separate printed parts with connectors? In the Export step, pick a larger scale (denominator 1:99 or smaller).

Closing openings

At these small scales you can also have the export close windows and doors completely — then you're left with a shallow recess instead of a hole.

The texture preview flickers or shows pattern glitches

Display glitches in the texture preview (flickering, pattern artifacts) are purely rendering effects in the 3D preview. They are not part of the exported 3D model — you can safely ignore them.

The later steps are locked

Every step after Floor plan stays locked as long as your floor plan isn't valid yet. With L, T and U shapes this happens when the dimensions don't add up — for example when an inset or cutout is wider than the whole building.

The floor-plan panel then shows you under "Check dimensions" exactly which dimension is the problem. As soon as the notice disappears, the Roof, Fit-out & Add-ons, Openings, Extras and Export steps open up again.

Export interrupted or "server busy"

Preparing the files normally takes at least 30 seconds and can take up to 2 minutes. Two messages can stop an export:

  • "Server is busy right now": another export is currently running. Wait a few seconds and start the export again.
  • "The export was interrupted (server restart)": the job was lost. Just start the export once more.

In both cases your configuration is kept — nothing is lost.

Export takes too long

If the export aborts with "took too long" or because it ran out of memory, try again with fewer textures or a larger scale.

"No visible parts to export"

This message appears when the "Export only visible parts" option is on but every floor or part is hidden in the Visibility panel — leaving nothing to export.

In the Visibility panel (right-hand column) turn some floors or parts back on, or switch the "Export only visible parts" option off.

Forgot your password

Open Sign in, enter your email address and choose Forgot password?. Open the link you receive. Enter your new password twice on the recovery page and save it. If the link has expired or is invalid, request a new one.

Retry the preview after an error

After a failed preview request, Try again lets you request the same configuration again. You do not need to change your model.

Download allowance temporarily unavailable

If PrintHaus cannot check your allowance, the file is not downloaded yet. Try the download again later. Your configured model is kept.

Why is my model.json not being saved?

To save your project, PrintHaus must sign the project file for your signed-in account. If the server cannot provide the signature, no file is downloaded. If your session has expired, sign in again; if there is a connection error, check your internet connection. If there is a server error, try again later. Use the same save button for your next attempt. Your model stays in the open tab. To load the file later, use the account you saved it with.