Will my model print? 4 checks before you upload

A model can fail to print for four common reasons. A wall is too thin. An overhang has nothing under it. A part floats in mid-air. Or the model is too big for the printer. You can learn to spot each one before you upload, and Makerlane's upload check looks for all four.

Last updated 21 October 2026.

Where Makerlane is today

Makerlane is a 3D printing service in Singapore. As of 21 October 2026 you can see your print price at makerlane.sg, with no sign-up. Ordering opens soon. Sign up for the free beta. Invites go out in small batches.

Check 1: are the walls thick enough?

A wall is any thin part of a model: the side of a box, a fin, the stroke of a letter. A printer lays down plastic in lines about as wide as its nozzle. Makerlane prints with a standard 0.4 mm nozzle today.

Makerlane's check treats a wall thinner than 0.8 mm, twice the nozzle width, as too thin. It warns you if a noticeable share of the surface is that thin: those parts may print weak or be missing. To fix it, thicken those walls or scale the model up.

Find your model's thinnest part in your 3D program and read its thickness. Thicker is stronger, so give walls that carry a load more than the minimum.

Check 2: overhangs and supports

A printer builds your model one layer at a time, starting on a flat plate called the bed. Each layer needs something under it. A surface that leans out over empty space is an overhang. A gentle lean prints fine. A steep lean sags, so the printer adds supports: temporary pillars that are removed later.

Supports leave small marks where they were removed. That is normal for 3D prints, not a fault. Makerlane's check tells you how much of your surface overhangs and when supports are needed. Supports are in the print price.

You can often reduce supports by laying the flattest face on the bed. The check suggests another orientation when it helps, and Pro mode on the page with your print price lets you turn the model yourself.

Check 3: is any part floating?

A floating part is a separate piece that is not joined to the bed or to the rest of the model. A printer cannot start a layer in mid-air. It can happen with assemblies, or when pieces sit close together but do not quite touch.

Makerlane's check counts the floating parts and tells you if they will be printed on supports. To fix it, make the piece overlap the model a little so they join. Or export the pieces as separate files and lay each one flat.

Check 4: does it fit?

Look at the size in millimetres. The biggest space on a Makerlane printer today is 256 mm wide, 256 mm deep and 256 mm tall. If your model is bigger, the check says so and suggests a smaller scale, or you can split it into parts.

If your model is only a few millimetres across, the units may be wrong: the check says it may have been exported in centimetres or inches. The page with your print price shows your model's size and lets you change the scale or size before you lock a print price.

What the upload check tells you

Makerlane checks your model in software as you upload it: size, overhangs, supports, thin walls, floating parts and colour swaps. If something will not print, you see why before you pay, with the fix.

Some notes are warnings: the model can still print, but a part may come out weak or have gaps. Others have to be fixed before you get a print price.

If your model uses more than one colour, the check also looks at the colour swaps. Colour swaps are in the print price.

A passed check does not make a print flawless. Layer lines and small marks where supports were removed are normal for 3D prints.

The print price you lock never goes up. You see the handling fee and delivery before you pay, and nothing is added after you pay. Checked your model? See your print price in seconds at makerlane.sg.