This kit includes:
3D printed shuttle /stop assy (grey PLA)
Shock absorbing spring set and pads
Sideframes
Pulley set and cord.
package weight 400g
 
You complete the launcher you will need to source:
'swish' delux curtain track
sturdy PA speaker stands and fittings
2M timber rail
tie off cleats
screws etc
2kg door stop
Typically £165 worth of parts prices accurate at time of writing.
 
Typical time required to produce a launcher on a one off basis is 3hrs not including paint drying time.