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Re: Manufacturing of the lamp holder for rear lantern of Gazelle Trim Sport 1983
Geplaatst: 4 aug 2025, 19.17
door Dr. Romano
The hole for the screw should be made at an angle of 7 degrees, and should not be cylindrical, but conical. The hole is drilled with 3 drills to different depths, and finished with a dental bur.
- Drilling a hole for a screw
- IMG_4965.JPG (171.84 KiB) 2542 keer bekeken
Re: Manufacturing of the lamp holder for rear lantern of Gazelle Trim Sport 1983
Geplaatst: 4 aug 2025, 20.33
door Dr. Romano
For the Edison E10 thread, a lamp base was used. One more hole was drilled in the polyamide block for experiments.
- The E10 lamp base is used for thread cutting
- IMG_4966.JPG (191.75 KiB) 2440 keer bekeken
Re: Manufacturing of the lamp holder for rear lantern of Gazelle Trim Sport 1983
Geplaatst: 4 aug 2025, 20.36
door Dr. Romano
The lamp base fits well on a 15W soldering iron. It needs to be heated...
- The base is put on the soldering iron
- IMG_4967.JPG (199.61 KiB) 2439 keer bekeken
Re: Manufacturing of the lamp holder for rear lantern of Gazelle Trim Sport 1983
Geplaatst: 4 aug 2025, 20.39
door Dr. Romano
... and screw it into the hole.
- The heated base is screwed into the hole
- IMG_4968.JPG (152.59 KiB) 2432 keer bekeken
Re: Manufacturing of the lamp holder for rear lantern of Gazelle Trim Sport 1983
Geplaatst: 4 aug 2025, 20.56
door Dr. Romano
The cooled bulb base is destroyed and removed piece by piece. The thread is finished and polished with a dental bur. Now the bulb screws in very well. The excess part of the holder is sawed off. All that remains is to polish the finished lamp holder with sandpaper so that it looks like exactly as the original one.
- Lamp holder with screwed bulb
- IMG_4971.JPG (254.39 KiB) 2418 keer bekeken
Re: Manufacturing of the lamp holder for rear lantern of Gazelle Trim Sport 1983
Geplaatst: 4 aug 2025, 21.01
door Dr. Romano
It turned out very accurate.
- A coin is used to open the lantern.
- IMG_4984.JPG (200.04 KiB) 2401 keer bekeken
Re: Manufacturing of the lamp holder for rear lantern of Gazelle Trim Sport 1983
Geplaatst: 4 aug 2025, 21.09
door Dr. Romano
The bulb is screwed into the replica holder more tightly than into the original, and not all the wire strands fit. Several wire strands are in the thread, the rest are pressed against the base from below. The bulb lights up!
- The lamp holder fits perfectly into place
- IMG_4986.JPG (210.33 KiB) 2390 keer bekeken
Re: Manufacturing of the lamp holder for rear lantern of Gazelle Trim Sport 1983
Geplaatst: 4 aug 2025, 21.30
door Maarten Waarlé
Super!
Well done!
Re: Manufacturing of the lamp holder for rear lantern of Gazelle Trim Sport 1983
Geplaatst: 4 aug 2025, 21.34
door Dr. Romano
Re: Manufacturing of the lamp holder for rear lantern of Gazelle Trim Sport 1983
Geplaatst: 4 aug 2025, 21.39
door wimjansen
Perfect: Good "old" workmanship to the standard!
