Lathe

Check out these turning elements images:

Employing the metalwork lathe, turning down, taper turning, drilling, knurling and threading utilizing taps and dies.

Image by Jordanhill College D&T Dept
We uncover that Craft &amp Design pupils often have difficulty remembering the sequence of operations involved when producing a straightforward screwdriver manage. These photographs depict this process.

We commence with the preparation of the 25mm aluminium blank. Soon after this the blank is held in the 3 jaw self centering chuck. A series of turning operations is then carried out. For the following we set a high spindle speed and utilized a slow feed speed for very best final results. Shown right here we show facing off. Then turning down or parallel turning. Subsequent taper turning. Right after that the Slocombe bit or centre bit is mounted in a Jacob’s chuck and a pilot hole is drilled. A HSS twist drill or jobber bit is then mounted in the Jacob’s chuck and a blind hole is drilled to a depth of 30mm. The depth gauge is utilised to judge this.

Taps and dies are utilized to reduce the internal thread on the screwdriver blade and the internal thread on the manage.

Lastly each components are assembled and the handle is knurled or provided a textured grip pattern. This is completed at a extremely low spindle speed and a slow automatic feed speed.

Denon DP-300F and Ortofon 2M Red 1 (B&W)

Image by wjserson

Rockaway Park Signals Restored

Image by MTAPhotos
For the very first time since Superstorm Sandy devastated the A train’s steel and ballast path by way of the Rockaways, ruining miles of signal and communications cables, and damaging significantly of the wayside signal equipment, the indicator board in the signal tower at the Rockaway Park – Beach 116 St station is functioning again.

Photo: MTA New York City Transit / Lenny Wiggins