Author Topic: Zee Needs Popcorn  (Read 30206 times)

Offline jonesie

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Re: Zee Needs Popcorn
« Reply #495 on: September 10, 2018, 02:00:28 PM »
hi zee,you could also wrap a thin piece of shim stock around the threads and lightly clamp them in the 3 jaw and take light cuts to face off,then you can run the tap back over the threads. you will really like a collet chuck you will use it alot. good luck

Offline kvom

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Re: Zee Needs Popcorn
« Reply #496 on: September 11, 2018, 12:33:59 AM »
hi zee,you could also wrap a thin piece of shim stock around the threads and lightly clamp them in the 3 jaw and take light cuts to face off,then you can run the tap back over the threads. you will really like a collet chuck you will use it alot. good luck

I use soda cans for this shim.  Cuts easily with scissors.

Offline zeeprogrammer

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Re: Zee Needs Popcorn
« Reply #497 on: September 11, 2018, 01:17:38 AM »
hi zee,you could also wrap a thin piece of shim stock around the threads and lightly clamp them in the 3 jaw and take light cuts to face off,then you can run the tap back over the threads. you will really like a collet chuck you will use it alot. good luck

I use soda cans for this shim.  Cuts easily with scissors.

Soda? I bought some cheap beer specifically for this purpose.
A stupid mistake.
I could have had GOOD beer AND shims.

P.S. My favorite beer doesn't come in cans. Shimming with glass is not a good idea. Not at all.
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
"To work. To work."
Zee-Another Thread Trasher.

Offline zeeprogrammer

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Re: Zee Needs Popcorn
« Reply #498 on: September 13, 2018, 11:15:30 PM »
1st pic shows 2 identical parts. What an achievement! They are identical in every way...including the boo-boo.
2nd pic shows the boo-boo. The holes aren't square to the faces.  :cussing:

It had been a while since I drilled small holes into stainless. I forgot and had no support under the part, so it tilted when drilling pressure was applied.
For the 2nd part, I squared up some sacrificial aluminum as a support. But to find the spot to drill, I had it sticking out of the vice a little (i.e. too much) so I can use the edge finder.
So both the part and the support tilted when I drilled.

Now it's time for the 3rd try. Beauty. I can't lose.  ;D
I either get the part right...or I get a 3rd identical part.

Yes yes. A 3rd identical part may relate to the definition of insanity...but I won't know and I'll be happy.
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
"To work. To work."
Zee-Another Thread Trasher.

Offline b.lindsey

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Re: Zee Needs Popcorn
« Reply #499 on: September 14, 2018, 12:27:10 AM »
You'll get it Zee. Nice looking parts otherwise  :)

Bill

Offline gerritv

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Re: Zee Needs Popcorn
« Reply #500 on: September 14, 2018, 12:44:09 AM »
I donate parts such as those to my wife/s paper weight collection. Unless I can salvage them of course.

Try running a reamer through them at perpendicular. The slight gap can be taken care of with silver solder. Just need a jig to keep the rods perpendicular.
Don't confuse activity with progress

Offline zeeprogrammer

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Re: Zee Needs Popcorn
« Reply #501 on: September 14, 2018, 02:21:36 AM »
@Bill...oh I'll get it. It helps when you boo-boo and you know why. Makes it much easier to correct. More difficult when things go awry and I'm left scratching my head (i.e. dome scratching).

@gerrtiv...Not sure that would work. I'd reamed the holes already. Most likely the part will work well enough but I'm not happy with it.
I just noticed your sign off..."Don't confuse activity with progress"...that should be mine.  ;D

I've probably learned the most on this project. Some parts made but not done...some parts made but don't fit...but when assembly time comes I can remake or adjust

I'm learning that it's not about the engine and learning...it's about the parts and learning. (Obvious to many of you but not all.)
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
"To work. To work."
Zee-Another Thread Trasher.

Offline b.lindsey

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Re: Zee Needs Popcorn
« Reply #502 on: September 14, 2018, 02:31:40 AM »
Zee, I know the part is small, but it still looks large enough to use the edge finder even with the part centered in the vise jaws.

Bill

Offline zeeprogrammer

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Re: Zee Needs Popcorn
« Reply #503 on: September 14, 2018, 02:50:03 AM »
Zee, I know the part is small, but it still looks large enough to use the edge finder even with the part centered in the vise jaws.

? Not sure what you mean. I did use the edge finder to find the X and Y. But to find the X, I had the part sticking out a bit from the vise. That created a bit of a lever.
I'm thinking if I had the part a bit proud of the vise then I could still find the edge, the part would have been more secure, and the the chance of tilting would have been less.

But...thinking about your renovation post...I think I'll step out of my shop 6 feet and have an ice cream sandwich.  :lolb:
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
"To work. To work."
Zee-Another Thread Trasher.

Offline b.lindsey

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Re: Zee Needs Popcorn
« Reply #504 on: September 14, 2018, 03:01:58 AM »
Couldn't you find the "x" edge even with the part totally inside the vise jaws? The  finder is only .200" dia. Plus enough to offset. The part looks that large from the picture.

Bill

Offline zeeprogrammer

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Re: Zee Needs Popcorn
« Reply #505 on: September 14, 2018, 03:10:03 AM »
Couldn't you find the "x" edge even with the part totally inside the vise jaws? The  finder is only .200" dia. Plus enough to offset. The part looks that large from the picture.

Good point. The part is .4375 wide so the finder should be able to fit. I probably thought it was too close and went the easy route.
I can either raise the part above the vise or go ahead and use the finder inside the vise.

Thanks.
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
"To work. To work."
Zee-Another Thread Trasher.

Offline 10KPete

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Re: Zee Needs Popcorn
« Reply #506 on: September 14, 2018, 03:11:19 AM »
One need not run the edge finder on the part. One of the vise jaws can be used....

Pete
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SB 10K lathe, Benchmaster mill. And stuff.

Offline b.lindsey

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Re: Zee Needs Popcorn
« Reply #507 on: September 14, 2018, 03:16:20 AM »
Correct Pete for the "y" axis.  I am thinking zee was trying to find the "x" edge though, which can still be done inside the jaws even if the sacrificial support extends beyond the ends of the part.

Bill

Offline 10KPete

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Re: Zee Needs Popcorn
« Reply #508 on: September 14, 2018, 03:28:19 AM »
Ahh! Quite right, Bill.

Keep at it Zee, you're doing quite well!

Pete
Craftsman, Tinkerer, Curious Person.
Retired, finally!
SB 10K lathe, Benchmaster mill. And stuff.

Offline zeeprogrammer

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Re: Zee Needs Popcorn
« Reply #509 on: September 14, 2018, 05:35:23 AM »
Yep. That's exactly it. I ran the edge finder against the vise jaw for Y and the part itself for X.

I will confess the parts were not identical other than in the sense both had tilted.
The one with the support didn't tilt as much...and may even still be usable.
It was more about learning about support and pressure.
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
"To work. To work."
Zee-Another Thread Trasher.