Baldwin Gas Mechanical Lamps

[Steve AddyParticipant @steveaddy35670]

I have just finished a pair of these lamps for my Baldwin 50HP gas mechanical. One sat on the "hood" in front of the chimney and the other hung from the rear underside of the cab roof. The body is turned from solid corrosion resistant aluminium alloy.  The bit of wood was so I could take them to the Work in Progress night without risk of damage.

Edited By Steve Addy on 05/03/2016 00:14:17

Edited By Steve Addy on 05/03/2016 00:15:04

[Steve AddyParticipant @steveaddy35670]

[OldMetallerParticipant @oldmetaller]

Nice work Steve…what scale are you working in?

Regards,

John.

[Michael GilliganParticipant @michaelgilligan61133]

Very tidy, Steve

LED illumination too.

MichaelG.

[Steve AddyParticipant @steveaddy35670]

Thanks guys.

It is 7.25" gauge which converted from 600mm gauge I make 3.26" to the foot. Not an ideal scale. The LEDs were sourced as filament automotive bulbs will vanish shortly in my opinion and these have a very long life – I bought a spare set too!

The lamp body is 72 of 73mm diameter I can't remember which.

Steve

[Steve AddyParticipant @steveaddy35670]

Here is the "office" at the present state of building.

[OldMetallerParticipant @oldmetaller]

That looks really interesting Steve- I hope you'll post your progress occasionally. That is very much my kind of model engineering!

Regards,

John.

[Steve AddyParticipant @steveaddy35670]

Hi John

Not looked on here for a while. I have recently equipped myself with some electronic gear so last night lit the lamps with the proper voltage from a bench power supply. I'll upload the picture of them lighting my bedroom from complete darkness.

Steve

[Steve AddyParticipant @steveaddy35670]

[John Stevenson 1Participant @johnstevenson1]

Steve,

You need to take some viagra last thing at night.

It will stop you rolling out of bed.

[OldMetallerParticipant @oldmetaller]

Steve, you'll have no trouble finding your way around a track at night…very impressive!

John…I am lost for words!

Regards,

John.

[Steve AddyParticipant @steveaddy35670]

LOL!

[Steve AddyParticipant @steveaddy35670]

Further to these lamps. I have drawn the manufacturers plates in 3D. These have been printed in wax in New Zealand and investment cast in silicon bronze. The detail level was at the edge of the printing capability. I have made a jig to bend the plates to fit the lamp body. Pictures hopefully in a minute.

[Steve AddyParticipant @steveaddy35670]

Jig as milled in dividing head, the spindle is actually vertical

Edited By Steve Addy on 17/01/2017 11:23:44

Edited By Steve Addy on 17/01/2017 11:31:18

[Steve AddyParticipant @steveaddy35670]

Bent plate sits on lamp body

Edited By Steve Addy on 17/01/2017 11:24:13

[Steve AddyParticipant @steveaddy35670]

Investment cast chimney top and chimney tube turned from solid 70mm bar

[Steve AddyParticipant @steveaddy35670]

Investment cast silicon bronze sand fillers

[Steve AddyParticipant @steveaddy35670]

Sand filler with turned angle ring, ready to mount on tank/body

[Steve AddyParticipant @steveaddy35670]

Drilling lamp plates with 0.4mm carbide PCB drill, view through microscope

Edited By Steve Addy on 17/01/2017 11:29:35

Edited By Steve Addy on 17/01/2017 11:30:50

[Steve AddyParticipant @steveaddy35670]

Microscope on Dore Westbury. Drilling spindle is a Proxxon flexible drive held in a drill chuck in a modified tool post holder. You can just about see the plate I was drilling, taped to a bit of card.

[Steve AddyParticipant @steveaddy35670]

All wax printing/casting was done by Michael Jack of Stanier Engineering in Auckland. I would not hesitate to recommend this thoroughly nice guy to fellow modellers. Usual disclaimer – only a very satisfied customer!

[Steve AddyParticipant @steveaddy35670]

This is an image created from the CAD model, the lamp plates are roughly 14 x 7mm. The black parts are raised with respect to the white parts. The model number was stamped on the prototype.

[Steve AddyParticipant @steveaddy35670]

Aforementioned Lamp ID plates finally fixed to the lamp bodies. The rivets are 0.5mm AF hex on a 0.3mm shank.

[OldMetallerParticipant @oldmetaller]

That is amazing work Steve, well done!

Regards,

John.

[Steve AddyParticipant @steveaddy35670]

Thanks John – laser cut bits arrived from Malcolm High this lunchtime so I have progressed the chimney this afternoon.  The bottom flange is now finished, but not welded to the tube.  The top spider is drilled and tapped to fix the chimney top and M5 bolts have been turned up to suit.  A bit of welding and riveting is in order now.  I think I'll leave the bottom flange off so I can use it spot the bonnet top though.

Edited By Steve Addy on 28/01/2017 23:46:47

Edited By Steve Addy on 28/01/2017 23:47:18

Edited By Steve Addy on 28/01/2017 23:47:39

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