One observation at a time

Zigzag selected but stitch not forming

Straight stitches appear even though zigzag is selected.

Start with the first observation ↓
Interactive diagnostic

Follow one observation at a time

First observation

What happens when zigzag is selected?

Use the last safe observation. Do not run the needle again if it touched the foot or plate.

Preparing the interactive choices…

IllustrationCompare the selection with the sewn shape.
Zigzag formation

The seam alternates across its width.

Straight formation

The seam stays along one line.

Check permitted pattern, width and needle/foot/plate mode before treating straight output as a fault.

No universal width value. A straight seam can be a selected setting, not a failed mechanism.

Use your exact model manual for instructions.
Example references and model limits
Sources:
Compare the observation

What matches—and what changes the path?

NORMAL REFERENCE

Expected state

A permitted nonzero-width zigzag forms alternating left/right stitches.

OBSERVATION 1

Straight output with zigzag selected

OBSERVATION 2

Sideways needle movement but missing stitches

Visual reference

Compare the cues. Keep the limits in view.

Open a comparison when you need it. Illustrations explain what to observe; your own sample and exact model manual guide the check.

Compare both sides of a straight control seam.
IllustrationOne seam. Check both sides.
Top side

Even formation along the seam.

Underside

Flip the same sample; check for excess loops.

Compare your own straight-stitch control on both sides.

A conceptual appearance guide, not a universal dial setting or a measured sample.

Sources and model limits
Sources:
  • Janome

    Janome 5024 instruction book — straight stitch tension

    Direct manufacturer link is not reliably available. Use the manual for your exact model.

    Manual diagrams and dial directions apply to the named machine. The product derives only the bounded visual relationship and sends numeric settings to the user's own manual.

Check approved needle/foot/plate/mode; stop at contact.
IllustrationCompatibility comes from the manual. Contact means stop.
Approved parts and mode

A symbolic clear path; not a measured safe gap.

Needle contact

Contact with foot or plate is a stop signal.

Confirm the permitted needle, foot, plate and stitch mode before another test.

No hook/timing geometry or internal adjustment. Do not rotate forcibly or run a contacting needle.

Use your exact model manual for instructions.
Example references and model limits
Sources:
  • Brother · CS7000X (related models only as listed on the page)

    Instructions apply to the named models. Use your own manual for settings, controls and insertion direction. These references do not authorize powered inspection or internal disassembly.

Sources and model limits
Sources:
  • Brother · CS7000X (related models only as listed on the page)

    Instructions apply to the named models. Use your own manual for settings, controls and insertion direction. These references do not authorize powered inspection or internal disassembly.

Compare permitted stitch selection with the actual sewn shape.
IllustrationCompare the selection with the sewn shape.
Zigzag formation

The seam alternates across its width.

Straight formation

The seam stays along one line.

Check permitted pattern, width and needle/foot/plate mode before treating straight output as a fault.

No universal width value. A straight seam can be a selected setting, not a failed mechanism.

Use your exact model manual for instructions.
Example references and model limits
Sources:
Sources and model limits
Sources:
Distinguish the selected pattern from sewn output.
IllustrationCompare the selection with the sewn shape.
Zigzag formation

The seam alternates across its width.

Straight formation

The seam stays along one line.

Check permitted pattern, width and needle/foot/plate mode before treating straight output as a fault.

No universal width value. A straight seam can be a selected setting, not a failed mechanism.

Use your exact model manual for instructions.
Example references and model limits
Sources:
Sources and model limits
Sources:
Sources and limits

Review the limits behind each check.

These manufacturer references explain the checks. Instructions for one model do not replace your own manual or authorize internal repair.

Brother · CS7000X (related models only as listed on the page)

Instructions apply to the named models. Use your own manual for settings, controls and insertion direction. These references do not authorize powered inspection or internal disassembly.