Metal spinning movies

[Terry Tynan]

Heres some links to a couple of short metal spinning movies I have made. The spun cup movie is spun on a 1/2hp mini lathe, the spun copper on a pro spinning lathe. You may have some problems viewing the movies depending on the speed of your internet connection. Copy and paste the links into your web browser.

http://metalspinningworkshop.com/MovieClipTwo.html
(old links were broken found these, enjoy! tt)


Some notes on spinning on the mini: The incredible thing about this
lathe is that we took it out of the box, set it on a workmate,
screwed on a chuck (the spindle is 1"/8 which matches nearly all of
our chucks), used a c clamp to jury-rig a pin to the tool rest, and
in literally five minutes was spinning the aluminum bowl you
see in the clip! Hard to believe, as I could stop the spindle
with my hand at any speed.

We saw the lathe on ebay, and lucky for us the company that was
selling the lathe was only 20 minutes from our shop, so we went over
and picked it up for $140 cash. It's a Chinese clone, with no brand
markings on it, but when we looked at the instruction manual (which had spelling mistakes galore) it said "Congratulations on purchasing your Fisch Turning Centre." You can draw your own conclusions, but our research showed Fisch to be one of the top brands among the 1/2hp minis. Unbelieveably, it's a solid little bugger.

A fabricator friend is making us a nice little 8" tool rest and a
trimming tool assembly so we can spin some things a bit more safely.
We'll post photos when we get it, hopefully today. Our idea for the
DVD project is to show a significant amount of woodturning and
spinning work done on this lathe.

We're also going to shoot some spinning on our South Bend 10" engine
lathe. The first project on that lathe will be to spin a protective
aluminum cover that slips over a 3 jaw chuck, which will prevent any
mishaps if the spinning tool should slip off the work piece. You
definitely don't want to mess up a spinning tool (or worse) by
getting it caught in the chuck fingers. An engine lathe is great for
spinning one or two small parts. Take a hunk of brass or steel rod,
chuck it up, machine it to the shape you want, turn the tool rest
around and tighten, attach a follower to a live center and without
removing the turned metal chuck you just made, just spin away!

Terry Tynan


http://groups.yahoo.com/group/metalspinning/

[hardtailjohn]

Excellent clips Terry! I'm also interested in the forming of a reverse lip on like say the cup. The actual application that I'm thinking of is on the spinner backing plate on an aircraft spinner. The backing plate needs to travel forward to get the spinner out from the nosebowl, but then needs to turn back so there is a flat spot to fasten the spinner. Would this most likely require 2 different "bucks"?
John H.

[Wray Schelin]

Hi Terry,

Thanks for posting the links to your movies. I watched them twice ! :D

I have a 1.5 meg broadband connection and they streamed right off with no hiccups and with a very good picture and sound. You're doing some very nice work in a craft that everyone who is interested in sheetmetal shaping should try their hand at .

Wray

[Boogiemanz1]

The movies ran on my 1 meg DSL great! I have always been intrested in making shapes like carb venturies/velocity stacks. I see know how it can be accomplished with relative ease (or you sure make it look easy). Thanks, I will be following this forum .......John

[Terry Tynan]

How do I post to each reply ? I know it will be easy once im told.
Terry Tynan

[Terry Tynan]

How do you guys get your pic or logo on your posts
Terry

[Wray Schelin]

How do I post to each reply ? I know it will be easy once im told.
Terry Tynan

Hi Terry,

You just hit the quote button on the post That automarucally sets up a reply for you .

Always use the preview button to see if your post looks correct before
hitting the submit button.

Wray

[Wray Schelin]

How do you guys get your pic or logo on your posts
Terry


Hi Terry,

Go to your profile and there is a spot to upload an avatar picture file.

It can't be larger than 90 pixels x 90 pixels or more than 6K in file size.

If you have problems send the picture you want to use to me an I'll install it .

My e-mail address is wesparts@ charter.net

Wray

[lschlack]

When this forum section first opened I was wondering what metal spinning was but hadn't had the opportunity to ask.

I am glad you posted the videos, they answered a lot of questions. This looks like something I will want to try my hand at. I will also be following this topic and shurely asking questions in the future

regards,
Larry

[Terry Tynan]

John,
Reverse spinning is quite a simple process and there are many ways to acheive the end result, I will be posting a short movie showing one way to reverse spin,from the DVD shortly.




Excellent clips Terry! I'm also interested in the forming of a reverse lip on like say the cup. The actual application that I'm thinking of is on the spinner backing plate on an aircraft spinner. The backing plate needs to travel forward to get the spinner out from the nosebowl, but then needs to turn back so there is a flat spot to fasten the spinner. Would this most likely require 2 different "bucks"?
John H.

[Terry Tynan]

John,
There are so many automotive applications for the spun part, venturies/velocity stacks like you say can be accomplished with relative ease, air filter covers / engine dress-up kits, headlamp pods, can all be manufactured from a budget setup.
Terry


The movies ran on my 1 meg DSL great! I have always been intrested in making shapes like carb venturies/velocity stacks. I see know how it can be accomplished with relative ease (or you sure make it look easy). Thanks, I will be following this forum .......John

[sollis30]

way to cool
i wonder if Terry can make from 16 or 17 gauge metal some motorcycle cool exust ends like grom 2 inc go wider maybe 4 inch long or more
that would be cool idea

[Butch Duke]

I watch the first video with no problem. But what I saw in the video kind a scares me seeing Tim wear the wrist watch for one is a no no around spinning parts. The other was the rag at the end of the video for polishing the part. THINK SAFETY AT ALL TIMES!!!!!

Specialty Interests
metal shaping, fabrication
& custom painting
360/373/7650
Butch

[Bone]

Just out of curiousity how would one make a blank in which both sides where convex such as a motorcycle fender? I can see how simple the solution to small items would be but I am so confused trying to imagine a die in which could be removed from the center after turning a completely curved peice. :?

[Wray Schelin]

Hi Bone,

Welcome to Metalmeet! :D

Check out this thread.

http://www.metalmeet.com/forum/viewtopic.php?t=1425


These are spun on a CNC lathe. I believe they use a complex multipiece expanding mandrel blank which uses tapers to expand and then contract to allow removal of the spun piece.

Wray

[Bone]

Roger that! Thx for the welcome I am slowly going through all the posts just taking some time sry to ask duplicated questions.

[Doug98105]

Check this site for production spinning lathes


Scroll down on the left side and click on "spinning methods". Then down the page a ways there's a picture of several spinning methods without internal mandrels.

My question is what was the starting blank for the motorcycle fender donut. Sometimes to save material parts like this are started from a blank rolled into a tube and butt welded at the seam. In the picture I don't see a seam.

Doug

[Scat-r-d]

A while back I saw a show on Discovery about Milwaukee Iron and in the background you could see them working on fenders.
What I saw was 2 men, one on each side of a vertical slowly spinning fender grinding what looked like a seam down.
That would lead me to believe they spin 2 pieces, weld them together, then spin it slowly round, and as it spins they grind off the bead.

At least that's how it appeared.

Lynn

[mtlscool]

Hi Terry,

I tried your links and they did not work for me, but I did go to your web page. You make some very nice product. Would love to see the videos!

Tom