The buttery maker space
Drop in line art (a bold outline drawing, a logo, an inked sketch) and get back a slicer ready bundle: a 3MF project file plus a matched single body STL. Clean outlines melt into crisp raised detail you can paint per region in your slicer. Photos work too. Need vectors instead? The same tool traces clean SVGs and checks they'll actually cut on a Cricut or laser before you download.
A bookmark uses two pats. You get five free pats, your allowance for finished files, no sign-in required, and you can churn more butter pats whenever you run low.
Pats are your free allowance, a few at no cost, no purchase and no sign-in. SVG work (a clean trace or a repair) is 1 pat; 3D outputs (bookmark, Color Book, rounded STL, lithophane) are 2. Run out and you can churn the butter for more.
Diagnosis
Checks whether your SVG has clean, maker-friendly geometry before you download.
Your bookmark is ready.
Spin your bookmark in the preview above, then drop the ZIP into your slicer and print. The preview is the plain STL; color gets painted onto the 3MF in your slicer. The bundle includes both file types so you don't have to pick:
Saved to your files for 24h · having trouble opening your bookmark ZIP? Quick-start guide.
Your Color Book is ready.
Print the relief tile in one solid color (white works great), then color it in by hand, both between the raised lines and over the lines themselves. Paint markers, crayons, or pencils all work.
Saved to your files for 24h · new to Color Book? Quick-start guide.
Your lithophane is ready.
Spin it in the preview above, then slice and print it standing up at 100% infill. Held up to a light, the thickness becomes your photo: your actual photo, not a stylization. The bundle includes both file types so you don't have to pick:
Saved to your files for 24h · new to lithophanes? Quick-start guide.
ButterySpace tells you whether it'll actually work, and fixes what it safely can. That's the whole point.
Open paths, tiny islands, dimension mismatches, runaway node counts: the common problems that break cutters and lasers. Each issue comes with a severity, and the file gets a confidence-rated score, so we never fake precision.
No jargon. "A connector is too thin to cut," not "kerf threshold violation." Automatable issues get a safe one-click fix; others get clear next steps.
Compare your original against the rendered SVG in the split view, and read the per-fix summary: viewBox added, strokes expanded, embedded photos flagged.
It's sent to the Buttery engine, inspected, fixed, and handed straight back, and never sold. Files auto-delete within 24 hours, or up to 30 days if you opt in to let us improve our algorithms with them.
Design Space rejecting your file or importing it at the wrong size? We add the missing canvas, expand strokes into cuttable paths, and strip the hidden photos and effects Cricut can't read.
Close open paths, remove double-cuts, and flatten unsupported effects so your laser traces clean lines the first time.
Drop a PNG or JPG, cropped tight to the subject, and we trace it into crisp vectors and score the result for your target machine.
Selling SVGs on Etsy? Run them through first so your customers don't have to be the ones who find the problem.
Yes, to start. You get five free pats, your allowance for finished files, with no sign-in, and you can churn more butter pats whenever you run low. A clean SVG, an SVG repair, or an image format conversion uses one pat; the 3D outputs (bookmark, Color Book, rounded STL, lithophane) use two.
For image conversion and bookmarks: PNG, JPG, or WebP up to 20 MB. The format converter also reads iPhone HEIC, plus AVIF, TIFF, and BMP. To check or fix an existing SVG: an SVG up to 2 MB. You get a clean SVG back, plus the bookmark ZIP (3MF + matched single body STL) for bookmark conversions.
Only briefly. Your files are sent to the engine, processed, and handed back, and never sold. They auto-delete within 24 hours. If you opt in to product improvement, we keep that session’s files for up to 30 days and use them to improve our algorithms.
A file can be valid XML and still break a cutter: missing canvas size, stroked outlines, embedded photos, or unsupported effects. ButterySpace checks for exactly those machine-specific traps before you download.
A pat is one free use, named after a pat of butter. You get a few at no cost, and they are not a purchase. A clean SVG, an SVG repair, or an image format conversion is one pat; the 3D outputs (bookmark, Color Book, rounded STL, lithophane) are two. When they run out, churn the butter for more.
Early access
More bookmark styles, new 3D objects, and a developer API are on the roadmap. Waitlist members hear first and get early access when Pro and the API open up. Tell us what matters most to you.
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We'll send one note the moment Pro and the API open up.
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Email us to join the waitlist