SuperSoft Jaw Remix (Ridiculous Egg Example)

February 14, 2011 by: Andrew Grevstad

My first Super­Soft Jaw movie was a good exam­ple for thin parts. But it neglected to show another strength — securely hold­ing on to del­i­cate objects for light machine work. I’ve brought along Tormach’s good friend Ed as a spe­cial guest star for this movie. Ed is a tin­kerer and inven­tor here in Madi­son. He’s been involved in small CNC machines for since the 80’s and actu­ally did the major­ity of the design work for the Super­Soft Jaw prod­uct — tak­ing it from an off-the-wall idea to a use­ful hard­ware kit.

Ed kept men­tion­ing that he could use Super­Soft Jaws to firmly hold an egg in the vise, so I asked him come over and show us how it was done. The “Egg machin­ing” por­tion of the video, how­ever, is com­pletely self indul­gent. The long ver­sion of the clip below shows how the setup is done:


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From very lim­ited expe­ri­ence, I can tell you that the best way to cut Egg Shell is High RPMs and slow speeds — I had best luck with our Kress com­pan­ion spin­dle kit. And if you plan to use a Right-handed end­mill to scram­ble, run the Spin­dle CCW. That’ll keep the egg inside the shell — it kind of works like an immer­sion blender.

Here’s the last two min­utes of the movie again. Straight to the Punch­line, for those who like to skip to the back of the book.


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Home Shop machin­ist Pass Along Tips:

Speak­ing of Cre­ative Work­hold­ing, I just received this Pass Along tip from Vil­lage Press in my mail­box today:
Using PVC Pipe as a Stop for Fac­ing Oper­a­tions
If you aren’t already get­ting these, its free to sign up. You can sign up here to get on the mail list.
Its a great source for learn­ing about those clever machin­ist tricks that nobody ever tells you about.

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Andrew Grevstad

About

With over ten years of pro­fes­sional expe­ri­ence in advanced man­u­fac­tur­ing sys­tems, dig­i­tal design tools, and applied soft­ware, Andy Grevs­tad has worked in prod­uct devel­op­ment and tech­ni­cal sup­port for Tor­mach since 2008. Grevs­tad has received engi­neer­ing degrees from Michi­gan Tech­no­log­i­cal Uni­ver­sity and a M.S. and Uni­ver­sity of Wisconsin-Madison. He is a reg­u­lar con­trib­u­tor to Dig­i­tal Machin­ist mag­a­zine and also blogs weekly about CNC milling and related top­ics on the Tor­mach blog, Milling Around.

7 Responses to “SuperSoft Jaw Remix (Ridiculous Egg Example)”

  1. Jason P. says:

    Ha, dig­ging the facial hair. In any case, I really like the blogs Andy, makes me want a Tor­mach with all this com­pany support.

  2. Andrew Grevstad Andy G. says:

    Thanks Jason, glad you enjoy the blog. Still try­ing to con­vince my wife on the scruff, how­ever :)

  3. So with the right tool 2 I could scram­ble my eggs in the shell, yes!

  4. Tom says:

    Hey Andy, I’ll take mine scrambled

  5. Randy Hearn says:

    I like this idea and have some of this mate­r­ial and am con­sid­er­ing buy­ing the kit. How­ever, the exam­ples you show have been the knife and this egg and nei­ther were mounted very pre­cise. I would like to see some­thing put in the vise with this mate­r­ial and how you align it per­pen­dic­u­lar with the machine? I assume you can lay the part on the pins, that means the bot­tom of the part have a least a datum sur­face that can be used.

  6. Andrew Grevstad Andy G. says:

    Randy, funny you men­tion that. We have one final Super soft Jaws movie that shows a tech­nique to ref­er­ence a part to the top of the jaws. Look for it in the next week or so.

  7. Randy Hearn says:

    Sweet! Thanks Andy… Await­ing this video:)