◆ Soft plastic

Stick bait worm lure mold, 5 inch

Eight 5 inch stick baits per pour, the do-nothing worm for wacky and Texas rigs. A silicone lure mold you make yourself.

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3D render of the printed caster for an eight-cavity silicone stick bait lure mold beside the silicone mold it pours, with green pumpkin soft plastic stick baits in front
Soft plastic ~101 g

A hand-pour mold for eight 5 inch (127 mm) stick baits: a plain, slightly tapered worm, 12.4 mm across at the head and a little thinner at the tail, with faint rings along its length, the bait bass fishers rig wacky style, Texas rigged or weightless and let fall. Each set of four takes about 34 ml of plastisol.

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Made with our tray mold generator in its flexible silicone tray mode: print the caster, pour a heat-rated mold silicone into it and peel out an eight-cavity lure mold. Plastisol goes in at 160 to 180 C, far past what a printed mold survives, and the silicone takes it pour after pour.

The baits are open-pour and flat-backed, the way every hand-pour mold makes them: fill each cavity to the brim and the flat side becomes the back. Pour a heavier stick with a pinch of fine salt stirred into the plastisol, which also makes it sink faster. The zip carries the printed caster exactly as the tool exported it, one set of four baits as an STL, the master uploaded to the tool, and a print and pour sheet with the silicone figure the tool measured.

Shown as a 3D render of the printed caster with the silicone mold it makes and green pumpkin stick baits in front, not a photo.

Stick bait worm lure mold, 5 inch at a glance: every printed part with its size, print time, filament, print settings and the three steps to use it

What you need

4
  • About 343 ml of mold silicone rated for 200 C (400 F) or more, tin or platinum cure (mix it in one batch)
  • Soft or medium plastisol: about 34 ml fills one set of four stick baits
  • Plastic lure colour, fine lure glitter and fine salt if you want them
  • A microwave kept for plastisol only, a heat-proof pour cup, gloves and good ventilation

How to cast it

6

  1. Print the caster as exported, open side up, no supports. It only ever holds silicone, never hot plastisol: PLA softens at about 60 C.

  2. Mix 343 ml of a mold silicone rated for 200 C (400 F) or more (most tin- and platinum-cure mold silicones are, check the datasheet) and pour it into one corner of the caster in a thin stream until it covers the shapes to the rim. Tap out the bubbles and let it cure for as long as its datasheet says.

  3. Peel the cured silicone out of the caster. That silicone is your lure mold: lay it flat on a heat-proof board.

  4. Heat soft plastisol in a microwave you keep for plastisol only, in 30 to 60 second bursts, stirring between them, until it is clear and runny at 160 to 180 C (320 to 350 F). Stir in colour, glitter or salt now. Work with a window open or under an extractor and wear gloves: hot plastisol burns, and it smokes if it goes past 190 C.

  5. Pour each stick bait from the pour cup in one steady stream, starting at the head, which cools first, and fill each cavity slightly over the rim. Never pour lead or any metal into this mold.

  6. Let the mold cool for 5 to 10 minutes, then peel each stick bait out, the thin end first. Trim any flash off the flat back with scissors, and keep the mold for plastisol only.

Print details

3 h 20 minPrint time
~101 gFilament
1Printed parts
139 × 152 × 21 mmSize (W x D x H)
All print details
Print details
Cast materialSoft plastic
Printed parts1
Size (W x D x H)139 x 152 x 21 mm
Print bed needed152 x 140 mm, 21 mm tall
Filament~101 g
Layer height0.2 mm
Infill15%
SupportsNot needed
DownloadZIP: printed caster (STL) + one set of four stick baits (STL) + tool master (STL) + print and pour sheet
Added2026-09-28
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Free for personal use. Selling the pieces you cast needs a commercial licence (Pro or Founder); passing on the file itself is not permitted on any plan. Full terms.

New to casting? Read the ice cube tray mold guide.

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Questions about this design

How do I rig the stick bait from this mold?

Wacky style is the classic: hook it through the middle on a 1/0 wacky hook and let it fall slowly on slack line, both ends shimmy. Texas rigged on a 3/0 or 4/0 offset hook it goes through weeds. An O-ring round the middle makes wacky baits last longer.

Why does my homemade stick bait float instead of sink?

Plain plastisol is close to neutral in water. Stir about a teaspoon of very fine popcorn salt into each 100 ml of hot plastisol just before you pour: it makes the stick bait sink with that slow shimmy and adds a salty taste bass hold on to. Stir between cavities, because salt settles.

Is the stick bait mold flat on the back?

Yes, like every hand-pour stick bait mold: the cavity is a rounded half with a flat top where you fill it. It is 8.4 mm deep, so the finished bait is a D shape rather than a round rod. It fishes the same on a wacky or Texas rig.

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