Hello All,
I service two lathes that are right next to each other. Lathe 1 and Lathe 2. Recently, Lathe 2 has started having an issue when "dropping" the cutting head and when it cuts a lock-out groove. Sometimes it sounds horrible. It definitely looks horrible. Now, one thing that I observed between the two lathes is the delay of the lead screw from when the cutter head is "dropped" with the lever to when the lead screw starts rotating again.
Lathe 1 starts up again almost instantly. Lathe 2 on the other hand does not. On Lathe 1 it is possible to see the actual initiation of the groove, where the stylus started cutting. On Lathe 2, you cannot. The stylus cuts into its previous groove.
Is there any way to adjust this with a pot on one of the cards? I really hope so!
Here are two videos showing the timing difference between the two lathes.
Lathe 1 - https://drive.google.com/open?id=0B_Mji ... TRZalpWbVU
Lathe 2 - https://drive.google.com/open?id=0B_Mji ... jlVamZlVVE
If anyone knows or is able to point me in the right direction that would be greatly appreciated! If you need any further information from me in order to better understand or help me with a solution, please do not hesitate to let me know!
Sincerely,
Thor
Re: VMS 82 DMM Lead Screw Delay Issue when start cutting
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2 Kinds of Men/Records: Low Noise & Wide Range. LN is mod. fidelity, cheap, & easy. WR is High Fidelity & Abrasive to its' Environment. Remember that when you encounter a Grumpy Engineer. (:-D)