Deep Grooves Mastering - Project Bladerunner

[ROLANDJAYS]

nice job on the v spring,
check your drawing, the 3 hole position is not 90 degrees from each other......

[recordboy]

I'm always amazed at the progresses and shear amount that you do. rock on Todd...

[opcode66]

nice job on the v spring,
check your drawing, the 3 hole position is not 90 degrees from each other......

The position of the holes don't matter. What matters is the shape of the spring. Sorry. To be honest, the most important anchor is the center.

[opcode66]

I'm always amazed at the progresses and shear amount that you do. rock on Todd...

I'm just pleased that I can make a proper stylus taper now...

[opcode66]

Metal torque tube with proper stylus taper. Spring steel v spring for the torque tube. Spring steel transducer springs. Improved push rod assembly yet to be built. My coils for drive and feedback are now completely modular which makes building and repairing them very simple. This build will be very close to the priduction model. I have some changes i want to make to the body. So, there will be at least one additional r&d model before production. So far so good!

[opcode66]

Cutting EM Shielding

[opcode66]

The second transducer pair with metal parts. I will build a third pair when the materials arrive. The combination of materials that work best will go into the production model.

I've added a copper disc for EM protection now too.

Test cut soon. Bench tests are great!

Bladerunner 1.J Metal Testbed

[opcode66]

Bladerunner 1 J Metal Update Part 2

The transducer and torque tube springs are now metal. The torque tube is metal and has a proper tapered stylus hole. The linkage is now soldered to the transducers. The drive coils are on nylon bobbins. This is very close to the production model. I test feedback tomorrow. I will shoot video of the test cut and post within the next couple days. You'll hear in this video that I have significantly increased performance.

[opcode66]

Bladerunner 1.J Metal Testbed - Dynamic Bench Test
Huge response! And, clean sounding. Check it out. Using a plastic party cup as a gramophone.

[opcode66]

Bladerunner 1.J Metal Testbed - Dynamic Bench Test 2
I turn up the volume... Wow!

[opcode66]

Bladerunner 1.J Metal Testbed - Feedback Bench Test
This is fantastic sounding! I need to replace a drive coil and I can start doing test cut!

[opcode66]

Bladerunner 1.J Test Cut
Fantastic sounding test cut. 20 to 20K response on disc. Not just on the bench. Crisp and clear sound. I couldn't be happier.

https://youtu.be/I4MDqn6rg7M

[sakuszi]

your music disco 1980 the same recorded my head https://www.youtube.com/watch?v=VeIaBFqH4yE&feature=youtu.be You envy? That you delete my posts? Why?

[opcode66]

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[opcode66]

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[opcode66]

Bladerunner 1.J Test Cut
Fantastic sounding test cut. 20 to 20K response on disc. Not just on the bench. Crisp and clear sound. I couldn't be happier.

https://youtu.be/I4MDqn6rg7M

[Ben]

Hey Todd,

Just great job man, I'm silently following your every moves with your cutterhead.... this is crazy how much progress you've made!
Just wanted to drop a line and encourage you in your process!!

It's really impressive what you've been able to accomplish so far, and I can't wait for this to be available.
take care
Ben

[Ciuens]

Hey Tood, Bravo!
Thanks for sharing your progress.

Ciuens

[EpicenterBryan]

Hey Todd,
Nice to see / hear test cuts again! Great progress there man. Lot's of work involved since the last version for sure! Learning to do all that new machine work was a big task for sure. Oh, and I like the gloves. It's a good look as long as you wear them in pairs.

I’m curious about a few things. No need to answer if you want to keep something a secret.

What alloy are you using for the links?
Why a steel torque tube rather than a lighter but stiff alloy?
Are you still running an 8 degree head angle?
Doesn’t the SX torque tube have a 7 degree angle on the tapered hole?
When cutting, is the stylus perpendicular or do you use a back angle because of the 90 degree tapered hole?

Again, I’m just curious since I’ve been plodding through some of those questions on my own project.

Bryan

[opcode66]

Anyone interested in my cutterhead work should continue to follow development progress on my Mantra Cutterhead site http://mantra.audio
Or, you can follow me on YouTube http://www.youtube.com/opcode66

Information on my other vinyl mastering related projects and products will be updated on my Deep Grooves site http://deepgroovesmastering.com

If you need mono cutterhead repairs on RCA, Presto or Audax heads please have a look here http://cutterhead.repair

Information and updates on Groove Graphics can be found at http://groovegraphics.net

Of course, I can be contracted to do just about anything. That should be obvious from my 6 years of posts here.

I've enjoyed the ride everyone. Cheers! Be well. End of Line.