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| 11th Jan 2015, 12:43 PM | #1 REPORT | |
 | zabadak Caddacack oh da ca-caddacack, shy shy skagellack Member since Jun 2010 4156 Points | Spirograph!  |
| 11th Jan 2015, 5:10 PM | #2 REPORT | |
 | Juke Jules SUBS Tell me he's lazy, tell me he's slow Member since Jan 2011 4138 Points Moderator | Uh? "403 Forbidden" "You don't have permission to access /comments/turntablism_spirograph_record_player_hack on this server."  |
| 11th Jan 2015, 5:48 PM | #3 REPORT | |
 | Graham7 Member since Apr 2012 6406 Points Moderator | Link was ok for me, maybe your browser was protecting you from the pop-up ads. Anyway, it's basically this: |
| 11th Jan 2015, 6:48 PM | #4 REPORT | |
| Juke Jules SUBS Tell me he's lazy, tell me he's slow Member since Jan 2011 4138 Points Moderator | Thanks, how amusing! I guess you play about with the precise speed settings to get different patterns |
| 11th Jan 2015, 8:58 PM | #5 REPORT | |
| Graham7 Member since Apr 2012 6406 Points Moderator | This is the much better youtube also linked on that page - The placing of the ends of the arms, via new holes made in the LP I suppose, would affect the pattern more than playing speed wouldn't it? I used to know about things like this, but it's all gone now... No, I think you must be right, a small difference in the playing speed must be needed, otherwise you'd only get one spiral. Edited by Graham7 on 11th Jan 2015, 9:04 PM |
| 12th Jan 2015, 4:17 PM | #6 REPORT | |
 | Magic Marmalade If you're not lost... It's not an adventure! Member since Jun 2014 3745 Points Moderator | Actually, this, and something else posted in the 45cat forum showing a home vinyl disc cutter, are both very close in principle to an idea I had for a device that I'm sure many would find very helpful: It makes me sick when I get a record that looks great, or one that is very rare but battered and doesn't play properly... to think that they may end up as a flower pot, clock or coaster is very sad. And I don't understand how nobody has yet come up with a satisfactory method of vinyl repair..."A Scratch is a Scratch, and nothing can be done about it" is up there with: "A record is worth whatever someone is willing to pay for it" as being one of the most oft repeated and unsatisfactory remarks around. After all, a record is only plastic, which can be locally heated, at site of scratch, repaired, and then cooled to set surely? As most scratches only traverse the width of a hair across a particular groove, you don't need to reform the whole thing... but those cases where more is required, it would seem to me that all you would need is a clean playing copy of your damaged disc with a matching matrix and stamp set (To insure the most approximate match in vinyl thickness and consistency, groove depth and other relevant dimensions to match the sound, then, similar to this, use the clean copy to guide a stylus on the damaged disc... that one having a hot stylus running ahead of the required repair, a forming stylus, then a cooling stylus or shoe to set... you only need to move the disc a little to make a repair. As a Seismograph transfers the vibrations from the earth through a needle to make a mark on paper, this would use the vibrations of the clean disc to move a needle to reform a scratch on a damaged disc. ...Now, if only I had the technical skill to make this... Anyone got the wherewithall? (You can fix my unplayable copy of Rubber Soul if you do!) |
| 12th Jan 2015, 8:35 PM | #7 REPORT | |
 | Trainman Trainman Member since Jun 2014 2559 Points Moderator | The placing of the ends of the arms, via new holes made in the LP I suppose, would affect the pattern more than playing speed wouldn't it? I used to know about things like this, but it's all gone now... No, I think you must be right, a small difference in the playing speed must be needed, otherwise you'd only get one spiral. [/quote] If you watch the video closely, it is the position of the arms on the record. Because of the positioning the two ends are travelling at different speeds, which what gives the pattern. |
| 15th Jan 2015, 12:21 AM | #8 REPORT | |
| Juke Jules SUBS Tell me he's lazy, tell me he's slow Member since Jan 2011 4138 Points Moderator | They are travelling at the same angular speed only if the speed settings are identical |
| 16th Jan 2015, 11:27 AM | #9 REPORT | |
| Neil Forbes Rock, Country or R. & B. - Classic Hits for me! Member since Dec 2014 252 Points |
Graham7 wrote:
This is the much better youtube also linked on that page -
The placing of the ends of the arms, via new holes made in the LP I suppose, would affect the pattern more than playing speed wouldn't it? I used to know about things like this, but it's all gone now... No, I think you must be right, a small difference in the playing speed must be needed, otherwise you'd only get one spiral. |
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Vinyl Albums : Live Music : 78 RPM : CD Albums : CD Singles : 12" Singles : 7" Singles : Tape Media : Classical Music : Music Memorabilia : Cinema : TV Series : DVD & Blu-ray : Magazines : Books : Video Games : Create Your Own World
Latest » Items : Comments : Price Guide : Reviews : Ratings : Images : Lists : Videos : Tags : Collected : Wanted : Top 50 : Random
45worlds for music, movies, books etc : 45cat for 7" singles : 45spaces for hundreds more worlds