DIY Engineering Projects At Home In Just Few Simple Steps

Engineering projects can be a fun way to spend the weekend especially if it’s a long one. Whether you are a kid or adult DIY projects are always fun to do. From building a beautiful table to making a handy vacuum cleaner or cleaning up all the rust, DIY engineering projects teach you new techniques to do things and learn a few tricks on the way.

Here is a DIY engineering project:

How to make a vacuum cleaner with a plastic bottle

DIY Engineering Projects
DIY Engineering Projects

Things needed:

  • An empty plastic bottle
  • A small plastic bottle or container
  • Sharp cutting tool like a knife or blade
  • Deodorant bottle
  • 12 v DC motor
  • Ballpoint pen refill
  • First aid cloth
  • Small bending pipe for the nozzle
  • Glue gun
  • Hammer, drill, nails and hacksaw
  • Metal ruler and marker pens
  • Soldering rod
  • Cardboard or polystyrene for handle


  • Cut the plastic bottle in half for the body and the bag.
  • Cut off the top and the bottom of the deodorant bottle to produce a nice flat sheet of metal.
  • Take the flat sheet you obtained from the deodorant bottle. Take the cut plastic bottle and sketch around the open circumference with a maker. Now cut the marked bit out of the metal sheet to make a nice round metal disc. Take your metal ruler and draw two sets of perpendicular lines to divide the disk into eight equal segments meeting at the center.
  • Take a hammer and put a nail right through the center of the disk. Cut along and leave a little room away from the hole. This will make 8 wings connected by a small segment of the disk.
  • Twist the wings in the same direction to make fan blades.

  • Take the 12v DC motor and attach the ballpoint pen refill onto the rotating rod on the motor and press to tighten. Cut the excess off around 10 mm past the rod. Take the crafted fan blades and slide over the pen refill attached to the motor. Fire up the glue gun and apply hot glue to provide extra strength around the joint.

  • Mark out a circle around the base of the plastic bottle to fit the DC motor through snuggly. Use a heated needle or soldering rod or drill to make a series of small holes around the bottle’s base to allow the exhaust air to escape. It should resemble a sieve when finished.
  • Wire the motor and add a cap to cover the wiring which you then glue inside the base of the bottle or cut out the central circle you made for the DC motor to fit into the bottle. Once complete, you glue the motor into place, making sure the fan blades are inside the bottle.

  • Take the first aid cloth and place it over the open part of the top section of the ex-plastic bottle. Trim around the edge of the bottle leaving about 10mm excess. This will form a basic filter for the cleaner. You could mount this on a handmade ring of wire that will be removable or tape the excess to the outside of the bottle using double sided sticky plastic tape. Now connect your front assembly into the open section of the base with motor and fan. Secure the seal with some more sticky plastic tape to form a nice airtight seal.

  • The nozzle and suction pipe – Take the bottle cap from the previous bottle and make a large hole in the center big enough to accommodate the bendy plastic tube you made sure you acquired before beginning this build. Glue in place. Now grab yourself the small plastic bottle, a small vaseline one will do, make a similar hole in the base and glue it to the other end of the pipe to make the nozzle.

  • Screw the bottle cap end onto the top of the main body and add a handle from cardboard or polystyrene.

  • Wire up the motor and attach to a plug assembly to connect it to the mains. Plug it in and away you go, your very own hand-made vacuum cleaner!

The DIY vacuum cleaner is ready for use!!

Also See: DIY How To Make A Water Dispenser In Easy Steps

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