DrZarkov wrote:Yes, an Edikow! It is a very interesting project to follow up my "Zarkovisor". I'm very interested in grammophones and phonographs, too, so this step is only logical to me.
Ah a brave, brave man is the Dr.
But I hope that you have plenty of mechanical engineering experience to build it as the tolerances on an Edikow are less than a sound phonograph.
Maybe you will try using an old phonograph but these are pricey and run too slow for NBTV. No one knows how rumble will manifest itself either........
It maybe better to use machined plastic gears rather than steel or toothed belt drives.
Have you solved the sync problem if the NBTV is seperate from the new Edikow?
.......It is unlikely that reliable sync pulses will be recordable onto a wax disc.
The resultant Edikow picture will be degraded both by restrictive bandwidth on the recording and also the surface noise inherant on playback.
Is this OK for you?
Can you get or build a cutter head good enough for its purpose?
Are you happy with a restrictive playing time or will you make extra long cylinders?
Where will the sound be stored? Double track cylinder so halving the play time, or a seperate sound cylinder, thereby doubling construction time and cost etc, or will the sound be on a CD as at present on NBTV?
These are just a few of the many questions one should answer to one's own satisfaction before spending time and money on building a Edikow machine.
For myself, I plan to use roller bearings for the cyl mandrel. All shafts, carriages and the leadscrew will be adjustable in order to line up all the moving parts to get constant depth of disc cutting and the cut to be exactly parallel along the cylinder as my own sync system will depend on this.
The method of construction depends on what machines one has.
A lathe and pillar drill are the minimum for this project to succeed if built from scratch.
Hope I haven't put you off, but taking on a Edikow is no where near as easy(!) as building a NBTV......and the biggest problem is the disc cutter and speed.
Albert.