Hoop and design errors: wrong hoop, design too large and files the machine will not read

Hoop and design errors are the machine refusing to start rather than stopping mid-design. Something checked the hoop, the design or the file before the first stitch and did not like the answer. The wording differs by brand ("wrong frame", "design too large", "attach the hoop", "cannot read this data", "memory full"), but every one of these messages comes from one of a handful of checks. Name the check and the fix usually follows. If your message is not in this group, reading error messages sorts the rest by sensor.

Which check is behind the message?

Wrong hoop or hoop not detected

Many home machines identify the hoop through a coded tab, switch or set of contacts where the hoop connects to the embroidery arm. The machine then compares that hoop with the one the design needs. Other machines cannot sense the hoop at all and trust whatever you select on screen. Your manual says which kind you have, and it matters: a detecting machine refuses the wrong hoop, while a non-detecting machine will happily stitch into the frame of one.

1. Reseat the hoop. Slide it fully onto the arm until the latch closes. A hoop that is a millimeter short of home is the commonest cause of "attach the hoop" on a detecting machine.
2. Match the hoop to the design and the screen. If the design was saved for a larger hoop, the machine asks for that hoop even when the stitches would fit a smaller one. Reselect or re-save the design for the hoop you actually have.
3. Check the connector end of the hoop. Look for lint, a cracked tab or a bent bracket. Compare it with another hoop of the same model that works.
4. Confirm the hoop is made for your model. Hoops are model-specific even within a brand. A third-party or borrowed hoop may fit the arm but not trigger detection. See hoop sizes.

If every hoop is rejected, or the message appears with the arm itself not moving, the fault is more likely in the embroidery unit than in the hoop. That is covered in carriage errors.

Design too large

The machine compares the design's stitched extents (the rectangle around every stitch, including jumps) with the sewing field of the hoop. The field is always smaller than the hoop's outer size and smaller than the nominal name suggests. Work through the likely reasons in this order.

• The design really is bigger than your field. Read the width and height from software or from the machine, not from the listing, and check it in the hoop size checker.
• Something extra widens the extents. A basting box, a stray stitch far from the artwork, or a long jump to a distant start point all count. Delete strays in software and save again.
• The file records a larger hoop. Some formats, JEF especially, store a hoop size. A converter may have guessed one your machine does not support. Reopen in software, set your hoop and save again, as described in converting file formats.
• It is a multi-hoop or split design. Large designs are often sold in parts. Make sure you loaded one part, not the combined preview file.

Shrinking a stitch file to fit works only within small limits, because the stitch count does not change while the area does. See resizing designs before you reduce by more than a little.

Design outside the sewing area after moving or rotating

A design that loaded happily can be refused after an on-screen edit. The check runs again each time you change the layout, and three edits catch people out.

Rotation

Rotating enlarges the bounding rectangle. A 90 x 150 mm design turned 45 degrees needs about 170 x 170 mm, so it no longer fits a 130 x 180 mm field even though nothing got bigger. Rotate by 90 degrees instead, or move to a larger hoop.

Moving

Nudging a design toward one edge for placement can push its far side past the limit. Recenter first, then move in small steps and watch the boundary on screen.

Adding lettering or a border

Combined elements are checked as one design. A name added under a motif, or a frame added around it, can tip the total over.

On a machine that does not detect hoops, this check is only as good as your hoop selection. A design that runs too close to the frame, or a wrong hoop chosen on screen, is a common way to strike the hoop and break a needle; see needle breaking.

Unreadable or unsupported file

When the design will not open at all, the machine's file reader has failed before any size check runs. Check these in order, cheapest first.

1. Is it a format your machine reads? Many machines list only the formats they support and ignore the rest. The file format finder and embroidery file formats give the native format for each brand.
2. Is the file unzipped? Machines cannot read inside a zip. Extract it on a computer and copy only the design file.
3. Is the name and location simple? Long names, accents, symbols and deeply nested folders cause quiet refusals on some machines. Rename with plain letters and numbers and keep the file near the top of the stick.
4. Is the format version supported? Newer software can write a version an older machine does not understand. Save down to an older version, if your software offers it.
5. Is the copy damaged? Copy again from the original download, and eject the stick properly before removing it. Transferring designs covers USB sticks, cables and wireless transfer.

Too many stitches or colors for memory

Controllers have limits on how many stitches, color stops or how much data a single design can hold, and on how much they can store in total. The limits vary widely by model and are listed in the manual's specifications. These messages usually appear when designs are combined on screen or a very large design is loaded into a machine with modest memory.

• Clear stored designs from the machine's memory if the message is about storage rather than the design itself.
• Merge same-color stops that sit next to each other in the sequence. That is safe in a stitch file; reordering non-adjacent colors is not, because it changes layering. Stitch vs object files explains what you can safely edit.
• Split the design into parts in software and stitch them as separate files, using the machine's positioning to align them.
• Combine in software, not on the machine, so you can see the total stitch and color count before transferring.

After the design loads

Clearing a hoop or design error only gets the design onto the machine. If you resized, rotated or recombined it to get past the message, stitch a test on the same fabric and stabilizer before the real piece. The Stitch-Out Tuning Method gives a short routine for that first test, so a design that now fits does not go on to pucker or misregister.