Machine Target

I'm trying to make a machine for trajectory. How do i make a trigger mechanism without using metal/springs?

I'm trying to shoot a ball out of my machine and land on a target.

you may try pneumatic piston and solenoid

Williams Flash Pinball Machine 2 Bulleye Targets    US $4.24

Williams Flash Pinball Machine 3 Drop Target Unit    US $16.50

Williams Flash Pinball Machine 5 Drop Target Unit    US $6.15

Medieval Madness Pinball Machine Target Decal Set    US $27.99

CENTAUR PINBALL MACHINE NEW PLAYFIELD DROP TARGET SETS    US $11.49

Bally XENON Pinball Machine Drop Target Set    US $18.00

STERN METEOR PINBALL MACHINE DROP TARGET ASSEMBLIES    US $26.00

Back to The Future Target Decals Pinball Machine    US $8.75

BLACK KNIGHT Pinball Machine Drop Target Decals    US $9.95

BOBBY ORR POWER PLAY Pinball Machine Drop Target Set    US $38.00

30a 1463 1 2 3 Jokerz Drop Targets Pinball Machine    US $8.75

DATA EAST TALES FROM THE CRYPT ORIGINAL NOS PINBALL MACHINE EYE BALL TARGETS 6    US $59.99

DATA EAST LAST ACTION HERO ORIGINAL NOS PINBALL MACHINE ROUNDED TARGETS 3 DIFFER    US $34.99

DATA EAST TOMMY ORIGINAL NOS PINBALL MACHINE 3 COLOR TARGET ASSEMBLY BANKS 2    US $54.99

PARAGON Pinball Machine Wolf Target Set    US $28.00

BABY PAC MAN Pinball Machine Drop Target Set NEW STAMPED TARGETS    US $19.95

BLACK KNIGHT 2000 Pinball Machine Drop Target Decals    US $8.75

8 BALL DELUXE Horseshoe Pinball Machine Drop Target Set    US $28.00

8 BALL DELUXE Auxillary Pinball Machine Drop Target Set    US $20.00

Theatre of Magic Pinball Machine Target Decal Set    US $27.99

TORPEDO ALLEY ORIGINAL NOS MINT PINBALL MACHINE DROP TARGET DECALS SET OF 3 1988    US $9.75

RED 3 BANK PINBALL MACHINE STAND UP STATIONARY TARGET BANK DATA EAST SEGA STERN    US $29.75

Pinball Machine Blue Spot Target Leaf Switch New    US $14.91

Pinball Machine Red Spot Target Leaf Switch NEW    US $11.11

Pinball Machine Yellow Spot Target Leaf Switch NEW    US $11.11

Bally special force pinball machine 3 bank drop target with solonoids bracket    US $44.99

BALLY NEW OLD STOCK EM PINBALL MACHINE DROP TARGET SOLENOID COIL N 24 800    US $9.75

GOTTLIEB NOS PINBALL MACHINE YELLOW PLASTIC DROP TARGET COWBOY FAST QUICK DRAW    US $7.75

GOTTLIEB ORIGINAL NOS PINBALL MACHINE PURPLE PLASTIC DROP TARGET STAR DESIGN    US $7.75

GOTTLIEB PINBALL MACHINE WHITE PLASTIC DROP TARGET PLAIN DESIGN    US $7.75

VINTAGE ORIGINAL GOTTLIEB SS PINBALL MACHINE METAL EMBOSSED SPINNING TARGET    US $7.75

Round Drop Targets for pinball machines red    US $60.00

BALLY MR AND MRS PACMAN 2 USED PINBALL MACHINE DROP TARGETS WITH SPRINGS    US $19.99

ATARI SPACE RIDERS ORIGINAL USED PINBALL MACHINE DROP TARGETS 2000 POINTS    US $14.99

Sega Stern Gottlieb Pinball Machine Target Assembly set of 2    US $8.99

5 bank drop target from a dirty harry pinball machine with solonoids    US $39.99

Monster Bash Pinball Machine Target Decal Set    US $32.99

Cirqus Voltaire Pinball Machine Target Decal Set    US $32.99

Indiana Jones Pinball Machine Target Decal Set    US $32.99

BALLY BABY PACMAN PINBALL MACHINE USED DROP TARGET ASSEMBLY FULL UNIT 1982    US $24.00

GORGAR Drop Targets Pinball Machine    US $8.75

31 1401 Pinbot Drop Targets Pinball Machine    US $7.50

FLASH GORDON Pinball Machine Drop Target Set    US $44.00

ROLLER GAMES Pinball Machine Target Decals LICENSED    US $6.75

Space Shuttle Drop Target Set Pinball Machine    US $8.25

Big Guns Drop Target Decals Pinball Machine    US $8.75

1978 Bally PLAYBOY TOMBSTONE Pinball Machine Drop Targets LICENSED    US $29.95

EIGHT BALL DELUXE Pinball Machine Drop Target Set 1    US $28.00

Sorcerer Pinball Machine Drop Target Decals    US $9.95

Jungle Lord Pinball Machine Drop Target Decal Set    US $12.50

BALLY 1978 Star Trek Pinball Machine Drop Target Set    US $19.00

MATA HARI Pinball Machine Drop Target Set    US $38.00

SKATEBALL SKATE BALL Pinball Machine Drop Target Set    US $44.00

Bally Centaur Pinball Machine Drop Target Set    US $36.00

TIME WARP Pinball Machine Drop Target Decals    US $8.75

EVEL KNIEVEL Pinball Machine Drop Target Set    US $23.75

Custom STERN Dracula Pinball Machine Drop Target Decals    US $8.50

Bally AIR ACES Pinball Machine Drop Target Set    US $42.75

Bally KICKOFF Pinball Machine Drop Target Set    US $33.25

Bally QUARTERBACK Pinball Machine Drop Target Set    US $33.25

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