The Secret Society of Lathe Trolls

Wow & flutter tests

I just lucked out and got put in contact with a guy who owns the Lathe but couldnt do anything with it for various reason, so he let me take it and work on it. It's still "his" but i'm operating it and fixing it up. the condition seems ok, but i dunno on what scale i'm working to :) last time it wa...

this is making me think i should probably open my gearbox and fully clean/service it..... In what condition and where did you find your machine? When was the lasg time it was operated? I would just to look at it and see everything is good. But you also have to be pretty careful in there with the ge...

man those Bodine Motors are nice and quiet compared to the one I'm using, too bad they run at the wrong speed here in the UK. Did you have to dissassemble the gear box at all to service it? When i first purchased the unit i basically had to do a full tear down. I actually wish i had taken it a litt...

I posted a video of my machine running all 3 speeds for comparison to another lathe that's experiencing noise and rumble. I thought the video would be useful to other people so here is the link.

https://youtu.be/9sNUfWp73YI

I might shoot one with playback.

I got a few duplicates here im probably not going to use if anybody is interested.

I dunno.....10? 15? Bux for one? Trades? Shoot me something.

If i had it to do over again, id just get or construct an overhead, buy a nice TT and then search for a head.

But even that will break a thousand pretty fast.

I'd recommend a hole punch set, super handy when making your own neoprene slip mats and in cases like this. https://images.homedepot-static.com/productImages/c17395f5-0bd3-48ee-a65d-c6581e9473b4/svn/tekton-punches-nail-setter-sets-6588-64_1000.jpg Awesome. Im watching a set now. The "make your own ...

Tonight to combat the wow and flutter i was getting i cut my own prestoflex filter disc joints out of rubber i got from a cut your own gasket hardware store kit.

And it worked!

Thanks to mr. Kris d for the tip on the wow and flutter source issue.

Dang. A cored out guitar knob is a great idea for a record clamp!!! Never even considered it! Perfect for anyone with a k8, 8dg, 75a, etc. just ordered a few knobs! At first i was trying to reinvent the wheel which almost worked. But i saw some photo's of a few chucks that looked like a guitar knob...

Well, i built my vacuum box from an ametek lamb unit. It works good all for about 15 mins, then shuts off it seems. I know that these units should not run at full voltage, and mine is not, it runs at about 91v due to a transformer trick. The motor was repaired however, the spindle was damaged with o...

Yes sir. I need some kind of pitch control, as mine was absent from the lathe when i bought it. Now lately i have been thinking of just using a motor on a pwm controller with a couple preset l.p.i. buttons to start with. Sounds like that might be fine for what i plan to cut (rock/electronic). I migh...

This is super awesome! Thank you.

Gives me a lot of ideas for my stereo build when i can get back on it.

Now i just need to figurd out arduino and build this damn pitch computer!

Both are off the shelf toorhed pulleys from ebay.The one attached to the overhead i had too bore out the center a little bit to fit. My pulleys disappeared before i got to the machine. I think the previous owner had it running on a seperate motor and hand dialed the l.p.i. but none of what he added ...

Hi everybody! So i got the l.p.i. motor mounted and moving the shaft from the overhead into the lathe cabinet. But the worm gear doesn't move the overhead carriage. If i use the hand crank, it works. Inbetween the handcrank and the overhead is another locking collar that moves with the l.p.i. motor...

And i made v2 of the air chuck. Much better. I cored a guitar knob out to fit the spindle of the platter and a small copper tube. Works much better. I kept the set screw and leave it close but not touching the spindle. Now i can feel the vacume pull the lacquer. I also added fans and a controller to...

I wedged myself back there and got some better photo's. Looks like the second IRC resistor is 500 ohm

No problem. Thanks again for all your help So the 3 terminal resistor is 50 ohm at the connected terminals. Taking a measurement on the third disconnected terminal gave me 100ohm. So they are using it as a 50ohm. The second resistor gave me .4ohms no matter how i placed my leads. That doesn't sound...

Im gonna try and get those measurements soon.

I see the type 50 ohm res But what is the type and value of the other ? Also you show two solinoids on the the diagram . One on the mount arm that throw arm for the puck and another next to the 40uf 240v cap. Looks like a black selenium rectifier, any numbers or values - I think I can see EDI PRS I...