Smooth blank edges

This is where record cutters raise questions about cutting, and trade wisdom and experiment results. We love Scully, Neumann, Presto, & Rek-O-Kut lathes and Wilcox-Gay Recordios (among others). We are excited by the various modern pro and semi-pro systems, too, in production and development. We use strange, extinct disc-based dictation machines. And other stuff, too.

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iamtasha
Posts: 37
Joined: Sat Mar 25, 2017 10:30 am
Location: Portsmouth, UK
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Smooth blank edges

Post: # 49426Unread post iamtasha
Fri Feb 23, 2018 10:38 am

On Souris training weekend I remember him showing us a way to ‘smooth’ the edges of the blank so they aren’t so squared.

I have completely forgotten the technique as to how do it. I remember he basically just scraped a knife across it but I can’t get it to work!

Any help appreciated!

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petermontg
Posts: 610
Joined: Sat Jun 26, 2010 7:51 am
Location: Ireland.

Re: Smooth blank edges

Post: # 49431Unread post petermontg
Sat Feb 24, 2018 7:52 am

Get yourself a vegetable peeler and run it along the edge.

Best
Peter
Peter Montgomery
+353(0)894926271
peter(at)petermontgomerymastering.com

Stereo cutter head wanted. Send email or smoke signals.

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jjwharris
Posts: 189
Joined: Fri Jun 02, 2017 5:18 am

Re: Smooth blank edges

Post: # 49448Unread post jjwharris
Sun Feb 25, 2018 9:55 pm

Is that in jest?

At the moment I'm spinning my polycarb blanks on a juicer motor and sanding them by hand...
Record Lathe Embossing Supplies - http://www.supplies.johnnyelectric.co.nz/

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socialroots
Posts: 161
Joined: Tue Nov 11, 2014 2:33 pm
Location: Dulan village,Taitung,Taiwan

Re: Smooth blank edges

Post: # 49453Unread post socialroots
Mon Feb 26, 2018 6:17 am

Check out Myshank,Stevens got something on there just to do what want. The peeler probably will work as well,but probably one side at a time. Ive done it before just with scissors sharp edge,but i dont even bother anymore,the square edge is fine for me,dont need the extra work n extra plastic shavings messing up my work space or workflow.

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tragwag
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Location: Providence, RI USA
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Re: Smooth blank edges

Post: # 49459Unread post tragwag
Mon Feb 26, 2018 1:44 pm

making lathe cuts on a Presto 6N, HIFI stereo cuts on vinylrecorder
at Audio Geography Studios, Providence, RI USA
http://www.audiogeography.com

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Voxster1965
Posts: 81
Joined: Tue Apr 21, 2015 11:38 pm

Re: Smooth blank edges

Post: # 49469Unread post Voxster1965
Mon Feb 26, 2018 11:17 pm

tragwag speaks the truth - the Mango is the go-to deburring tool - works like a charm.

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handcut
Posts: 252
Joined: Thu Oct 16, 2014 5:41 pm

Re: Smooth blank edges

Post: # 49474Unread post handcut
Tue Feb 27, 2018 7:14 am

+1 for the deburring tool, though I like the double one:

https://www.accu.co.uk/en/deburring-handle-and-blade-sets/451992-155-00206

I was using a Stanley knife (box cutter) blade and it worked fine, but I managed to stab myself with it a couple of times and (most) people don't want blood on their records.

I would also recommend wearing a dust mask. As you drag that blade across the brittle edge of the disc, there is an explosion of invisible fine powder for you to inhale, likely to result in respiratory problems in later life. You definitely do not want Pneumoconiosis in 10 years time!

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tragwag
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Re: Smooth blank edges

Post: # 49480Unread post tragwag
Tue Feb 27, 2018 11:54 am

handcut wrote:+1 for the deburring tool, though I like the double one:

https://www.accu.co.uk/en/deburring-handle-and-blade-sets/451992-155-00206

I was using a Stanley knife (box cutter) blade and it worked fine, but I managed to stab myself with it a couple of times and (most) people don't want blood on their records.

I would also recommend wearing a dust mask. As you drag that blade across the brittle edge of the disc, there is an explosion of invisible fine powder for you to inhale, likely to result in respiratory problems in later life. You definitely do not want Pneumoconiosis in 10 years time!
ooooh! thanks for the tip on the mask, gotta do that from now on
making lathe cuts on a Presto 6N, HIFI stereo cuts on vinylrecorder
at Audio Geography Studios, Providence, RI USA
http://www.audiogeography.com

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iamtasha
Posts: 37
Joined: Sat Mar 25, 2017 10:30 am
Location: Portsmouth, UK
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Re: Smooth blank edges

Post: # 49485Unread post iamtasha
Tue Feb 27, 2018 3:20 pm

Thanks for the suggestions. I forgot to check back for a couple of days and am chuffed to see so many helpful replies!!!

I think the de burrer is the safest option, it’s not just customers that don’t want my blood on their discs, I would rather not lose any blood at all!

Thanks handcut for the mask advice. It’s the little things I never think of.

Cheers guys

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chrisdexta
Posts: 10
Joined: Mon Jan 14, 2019 2:11 am

Re: Smooth blank edges

Post: # 52979Unread post chrisdexta
Wed Apr 24, 2019 12:39 pm

I took the advice and got a double deburring tool, but having troubles using it... am I missing something?

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DJ2000
Posts: 23
Joined: Wed Apr 04, 2018 6:59 pm

Re: Smooth blank edges

Post: # 52985Unread post DJ2000
Thu Apr 25, 2019 6:43 pm

I got one of these but there seems to be a knack to using it, you will start off trying to take off to much and it will bite right in and make jagged edges, seems little pressure and the right angle just to take enough off

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chrisdexta
Posts: 10
Joined: Mon Jan 14, 2019 2:11 am

Re: Smooth blank edges

Post: # 52999Unread post chrisdexta
Sat Apr 27, 2019 6:32 am

DJ2000 wrote:I got one of these but there seems to be a knack to using it, you will start off trying to take off to much and it will bite right in and make jagged edges, seems little pressure and the right angle just to take enough off
Thanks, yeah i am finding that even the slightest bit of pressure digs right into the edge and just destroys the edge.
would be great to see some kind of instructional video perhaps?

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