- Member since
August 2005
- From: Mansfield, TX
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Posted by EdGrune
on Friday, November 11, 2005 6:01 PM
My application, your may differ. This has worked for me:
Typically I use a #6 or #8 machine screw and nut to hold my ship on the pedestal.
Since I do not plan on using the top knob, I put the finial in a vise, clamping on the knob. I then drilled a vertical hole through the open bottom of the finial into the neck and knob of the finial. The way the internal threading on the finial is turned it has a depression which centers the drill - so there is little, if any, need for a center punch. The #6 or #8 screw's diameter hole will remain inside the neck of the finial.
After drilling the hole I then cut the knob off with a hack saw.
By clamping on the knob you do not mar the body of the finial. The brass can be polished with some steelwool. A quick shot of Krylon clear will help prevent tarnishing due to oxidation.
At this point you have a pedestal as it appears the second from the left in the above photo.
Next lay out the base board to receive the holes which will attach the ship to the base. Drill these holes through the base using the same sized drill you used on the finial (i.e. to accept a #6 or #8 machine screw) Counterbore the bottom of the board to recess the head of the screw.
To assemble, run a machine screw up through the base (bottom to top), through the pedestal, into the nut fixed on the inner bottom of the model. The machine screw needs to be a minimum of the base thickness plus the pedestal height plus one quarter inch.
Most lamp finials and lampshade risers manufactured for use in the West have SAE 1/4-28 (fine) female threads on the bottom. European lamps are constructed differently. I do not know their specifications.
If you wish to do the same operation with a riser and avoid drilling and cutting the riser pick up some 1/4-28 (Fine) nuts and bolts of appropriate length. Afix the nut to the bottom of the model. Lay out your base board for the holes and drill 1/4 inch holes. Counterbore the bottom to accept the bolt head. Assemble by threading a riser into the nut on the bottom of the model, then thread a bolt through the base into the bottom of the riser.
There was a recent posting on SteelNavy with an online source of lamp parts.
http://www.grandbrass.com/catalog.cfm?category=Necks%20and%20Couplings&subcategory=Turned%20Necks
The turned necks look interesting, but the company's ordering system - requiring a 10 dollar setup fee for a first order under 50 bucks - has me scratchin' my head a bit
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