How to Wind a Coil Spring on the Metal Lathe

[arvidj]

(06-26-2013, 06:24 AM)Mayhem Wrote: What is wrong with using solder straight off the roll?

That will certainly work but in this case ... and in others ... it is SMT parts on a board that 5mm x 106mm ... the whole thing fits inside a BIC pen when it are done ... so having a small amount of solder at hand is just easier than having a couple of feet of solder pulled off the spool and then accidentally pulling the spool off the bench while not paying attention.

Just pulling a three foot piece off the roll doesn't work well as it is so fine ... .015 in. ... that it gets lost in the clutter around the bench.

And a nice holder just makes it a little easier for my fat fingers.

[arvidj]

(06-26-2013, 05:11 AM)EdK Wrote: I may need to consult you if/when I attempt rewriting the program. It's been awhile since I've done any Windose programming.

Ed

What ever you need, just let me know.

[Mayhem]

I keep it on the roll. No wastage then.

[EdK]

Got a start on converting the program to Windose.

Ed

   

[TomG]

[arvidj]

(06-27-2013, 06:04 PM)EdK Wrote: Got a start on converting the program to Windose.

Ed

C++? C#? VB?

I downloaded and installed the huge Visual Studio Express 2012 this morning.

Arvid

[EdK]

(06-27-2013, 09:11 PM)arvidj Wrote:

(06-27-2013, 06:04 PM)EdK Wrote: Got a start on converting the program to Windose.

Ed

C++? C#? VB?

I downloaded and installed the huge Visual Studio Express 2012 this morning.

Arvid

Arvid,

Neither. I'm using a free program called Just BASIC.

http://justbasic.com/

I had a couple of semesters of VB in college and I really like programming with it but when Microsoft dropped it and came out with .NET I lost all interest. Is Visual Studio Express free and if so does it include a version of VB?

Ed

[EdK]

It seems to be working for the music wire. At least I'm getting what looks like reasonable results. I'll have to fire up my old laptop and see if the original program will run on it and see if my results match.
When I select phosphorus bronze though I'm getting strange results. I'll have to dig into that and see what's going on.

Ed


  working.jpg (Size: 62.33 KB / Downloads: 71)

[chucketn]

(06-25-2013, 04:51 PM)EdK Wrote: Here are a couple of programs for designing springs. I haven't run them yet so I'm not familiar with them.

http://www.myvirtualnetwork.com/mklotz/f...andrel.zip

"If you wind your own springs, you know that sizing the mandrel for winding is generally done by guesswork. Kozo Hiraoka, writing in HSM, has produced a formula for calculating the required mandrel size that should help to get you close. I coded his formula to make it easier to use."


http://www.myvirtualnetwork.com/mklotz/files/spring.zip

"My good friend, Gene Rutkowski, up in Seattle, wrote a spring design program while building his locomotive. I've converted it to C and am making it available here."

They could be good supplemental information to Tom's nice video.

Ed

If you read the intro on the files page in the above links, Marv explains his programs don't run under Windoz. He recommends a DOS emulator program called DosBox. The spring programs run fine on Windoz under DosBox.
I have not seen Kozo's programs and don't have access to the mag article. Is there somewhere I can download it?

Chuck

[EdK]

(06-28-2013, 06:33 PM)chucketn Wrote: ... Is there somewhere I can download it?

Chuck

Chuck,

I have no idea. That reference to Kozo is also in Marv's program so I made sure to give him credit.

Ed