Sunday, 27 November 2011

How to set up a target

The target that we had to set up was made last year by students in the mechanical engineering department, our task was to set up the target in practice for elite cricketers to throw against. With our first attempt it took us a significant amount of time (nearly an hour) to finalise setting up the target but with practice we believe we can shorten this down to 15 minutes each set up.

set up the outer frame stand using bolts, the washer and a spanner. To align the right corners together you need to match up the shaped stickers to its corresponding shape on the other corner frame stand. There were three shaped stickers: Stars, triangles and circles. The corner should look like this:

Fig 1. Corner with triangle shaped markers

Complete this for all four corners and then install the middle stand using bolts into both the top and bottom of the frame, once this is done the standing frame should be completed and should look something like this:

Fig 2. completed target frame

Now this is completed its time to set up the target, you'll need more than one person to help you lift and place the target into place. the target needs to aligned into the metal brackets that can be found on both sides of the standing frame. You have to make sure that the bracket is straight and perpendicular to the ground, to do this you have to use an Alan key to move the bracket up or down so that both sides are in line. Once you believe the brackets are in line and the target looks straight, use a leveling tool to confirm this. This is how the metal bracket looks and how to align it:

Fig 3. frame being leveled using brackets that are aligned using Alan key

Finally, once the target is aligned and leveled the target should be completed and this is how it should look:


Fig 4. Finished target

5 comments:

  1. Nice post, thanks Kameron! One note, it was actually made by the Mechanical Engineering Workshop, not students; this is a high precision piece of equipment :)

    ReplyDelete
  2. Is the target computerised in any way for central accuracy?

    ReplyDelete
  3. The target is not computerised but it definitely is a good idea to implement in the future!
    To measure the accuracy we have a camera set up on the opposite side of the target (facing the face of the target) so that the bulls eye is clearly visible to be recorded by the camera.
    Once we have some good recorded data we play it through on MaxTraq and analyse the radial error using functions found on the software.
    this allows us to accurately measure the central accuracy of the target.

    ReplyDelete
  4. Ah, that sounds good. Let's hope an augmented system could be worked in the near future.

    ReplyDelete
  5. It's certainly on the list of things to do; Andy Weightman, our until-recently resident engineer, has many plans for automating this setup!

    ReplyDelete