Search found 714 matches
- Mon Feb 26, 2018 7:26 pm
- Forum: Experimenters' & Innovators' forum
- Topic: Bryan's Fairchild 539A lathe project
- Replies: 54
- Views: 12448
Re: Bryan's Fairchild 539A lathe project
A quick update. Thanks to MarkRob's help with this line of code, the lpiValue calculation works now and I have a valid LPI number being displayed! Thanks Mark!!!!! lpiValue = ((float)1777777.77777778 / (float)count)+0.5; //Calculate LPI based on the y=mx+B equation for 1/F vs LPI and round up. Lead ...
- Sat Feb 10, 2018 9:15 pm
- Forum: Experimenters' & Innovators' forum
- Topic: Bryan's Fairchild 539A lathe project
- Replies: 54
- Views: 12448
Re: Bryan's Fairchild 539A lathe project
Hey guys, I decided to do a video update on this project and I made this public on my YouTube channel.
So here you go....
So here you go....
- Mon Feb 05, 2018 9:41 pm
- Forum: Experimenters' & Innovators' forum
- Topic: Bryan's Fairchild 539A lathe project
- Replies: 54
- Views: 12448
Re: Bryan's Fairchild 539A lathe project
So I gotta ask , has someone actually modded a rek o kut m12 with a hand crank before? I know you could come up with a solution Brian and probably find the task pretty straight forward n easy, but has anyone else following this thread done it with a rek o kut m12? Hi Patrick. I don't think you got ...
- Sat Jan 06, 2018 11:04 pm
- Forum: Experimenters' & Innovators' forum
- Topic: Bryan's Fairchild 539A lathe project
- Replies: 54
- Views: 12448
Re: Bryan's Fairchild 539A lathe project
Here is a quick update on the Fairchild project. Lots of progress, but still missing a few key components. Right now I'm still missing the "One Way Bearings" (discussed later) and the "Thrust Bearings". I'm also missing both the flexible shaft coupler ( 1/4" to 6mm) and the even more flexible silico...
- Fri Jan 05, 2018 10:18 pm
- Forum: Secrets of the Lathe Trolls
- Topic: Lathe Disaster
- Replies: 7
- Views: 1454
Re: Lathe Disaster
I still say you need to file a police report. That's the first step in getting her out and a restraining order...
B
B
- Sat Nov 25, 2017 12:02 pm
- Forum: Experimenters' & Innovators' forum
- Topic: Bryan's Fairchild 539A lathe project
- Replies: 54
- Views: 12448
Re: Bryan's Fairchild 539A lathe project
Have you had a look at the TMC2100 stepper drivers? I looked at them yesterday. Interesting. But I already have 3 spare LE drives sitting around from a previous project. They look like below. The front cover comes off to expose dip switches where you set motor current, number of steps per rev and s...
- Thu Nov 23, 2017 9:05 pm
- Forum: Experimenters' & Innovators' forum
- Topic: Bryan's Fairchild 539A lathe project
- Replies: 54
- Views: 12448
Re: Bryan's Fairchild 539A lathe project
Hey guys - long time no post. I started messing with the lathe again a few weeks ago. A little here, a little there. I wanted to figure out what RPM was needed for specific LPI. So the first thing to do was to measure my lead screw. If found it's a 32 pitch. My lathe came with 4 interchangeable gear...
- Wed Nov 22, 2017 2:52 pm
- Forum: Our Cutters and their work
- Topic: Alan Graves 45 found
- Replies: 1
- Views: 2635
Alan Graves 45 found
Thought you guys would get a kick out of this. The wife and I were going through her records today, and I found this 45! Apparently, my wife's cousin was in a performance of Hello Dolly many years ago and it looks like our very own Alan Graves recorded it and cut some 45's. IMG_5830[1].JPG I wonder ...
- Sun Nov 12, 2017 11:12 pm
- Forum: Secrets of the Lathe Trolls
- Topic: Synchronous AC motor for leadscrew
- Replies: 35
- Views: 4975
Re: Synchronous AC motor for leadscrew
I've found mine is actually 32 TPI.jesusfwrl wrote:Let's get more specific: the feedscrew in the fairchild has a pitch of 35 tpi.
- Wed Oct 11, 2017 10:57 pm
- Forum: Experimenters' & Innovators' forum
- Topic: KNOP lathe DIY build
- Replies: 182
- Views: 59213
Re: KNOP lathe DIY build
It's not the board I have, which is pictured below and comes directly from Analog Devices. I see. What you show is what they call "EVAL-ADAU1701MINIZ - Limited Capability Evaluation Board : Cost $195". The small board (JTAG) I think people also call a USBi - your interface between the studio softwa...
- Tue Oct 10, 2017 8:44 pm
- Forum: Experimenters' & Innovators' forum
- Topic: KNOP lathe DIY build
- Replies: 182
- Views: 59213
Re: KNOP lathe DIY build
We all should be playing with this. I downloaded the software and watched a few videos. Amazing! I'm thinking this might be the ticket for an automatic pitch controller. It could even do the look ahead / delay function, in addition to HF limiting, iRIAA and probably depth control too. Crazy. What d...
- Mon Oct 09, 2017 8:23 pm
- Forum: Experimenters' & Innovators' forum
- Topic: KNOP lathe DIY build
- Replies: 182
- Views: 59213
Re: KNOP lathe DIY build
Jim, stop it!grooveguy wrote:Analog Devices' "Sigma" DSP platform is a snap to work with...
You sent me on a three hour (de)tour, a three hour (de)tour.
Bryan
- Thu Oct 05, 2017 12:21 pm
- Forum: Experimenters' & Innovators' forum
- Topic: Hanoi Amator Project (HAP)
- Replies: 78
- Views: 17668
Re: Hanoi Amator Project (HAP)
You have a pretty course pitch lead screw there. The pulley ratio you have might be in the ball park for lead in / lead out - hard to tell from the video. If you swap the pulleys, it will get you closer to a reasonable rotation for normal grooves but still looks to fast for that lead screw to me. Ca...
- Tue Sep 26, 2017 12:37 pm
- Forum: Secrets of the Lathe Trolls
- Topic: Presto 8dg overhead only hand cranks?
- Replies: 9
- Views: 1164
Re: Presto 8dg overhead only hand cranks?
You might want to play with the collar on the right side of the lead screw.
Yours is set right now for inside to out but might not actually be fully engaged.
For outside to inside it should be positioned like mine is in the photo below:
Bryan
Yours is set right now for inside to out but might not actually be fully engaged.
For outside to inside it should be positioned like mine is in the photo below:
Bryan
- Sun Sep 17, 2017 9:29 pm
- Forum: Secrets of the Lathe Trolls
- Topic: Shorten Long Stylii OK?
- Replies: 1
- Views: 482
Re: Shorten Long Stylii OK?
No problem. Measure and cut as needed. Sharp Dikes work fine. File the ends if needed. I've done the same per MarkRob's advice on aluminum shanks with zero issues.timinbovey wrote:Any reason I can't cut the long styli down to short styli size to use in these machines?
Bryan
- Sat Sep 16, 2017 7:46 pm
- Forum: Secrets of the Lathe Trolls
- Topic: Two MONO cutter heads and one Amp?
- Replies: 4
- Views: 919
Re: Two MONO cutter heads and one Amp?
Would you actually try it with your own gear if you were me? Im still a noob at all of this Since they are both 8 ohm, I would run two amps. Mainly because I'm sure there will be a different sensitivity (volts needed for 5cm/s reference) between the two. Using 2 amps you can set both levels correct...
- Thu Aug 24, 2017 9:25 pm
- Forum: Secrets of the Lathe Trolls
- Topic: sapphire EMBOSSING cones where to get?
- Replies: 2
- Views: 556
Re: sapphire EMBOSSING cones where to get?
Details are on this post:
https://www.lathetrolls.com/viewtopic.php?f=4&t=7343
https://www.lathetrolls.com/viewtopic.php?f=4&t=7343
- Thu Jul 27, 2017 12:20 am
- Forum: Secrets of the Lathe Trolls
- Topic: Alan Graves and the "Ever Seen This Presto"? Game
- Replies: 2
- Views: 588
Re: Alan Graves and the "Ever Seen This Presto"? Game
Video is up...
Enjoy!
Bryan
Enjoy!
Bryan
- Thu Jul 27, 2017 12:18 am
- Forum: Secrets of the Lathe Trolls
- Topic: Alan Graves and the "Name that Lathe" game!
- Replies: 5
- Views: 1006
Re: Alan Graves and the "Name that Lathe" game!
Video is up...
Enjoy!
Enjoy!
- Tue Jul 25, 2017 1:38 pm
- Forum: Experimenters' & Innovators' forum
- Topic: Bryan's Presto 8D mod's for Ortofon DSS stereo head!
- Replies: 1
- Views: 781
Re: Bryan's Presto 8D mod's for Ortofon DSS stereo head!
The next step was to work on a mount. I prototyped several versions in plastic until I was happy, and then handed the prototype to a machinist up the street. Shown here on the left is my plastic version with the Angled mounting piece supplied with the head. The angled part attaches to the head and h...