Author Topic: Zee Needs Popcorn  (Read 57439 times)

Offline 90LX_Notch

  • Full Member
  • ****
  • Posts: 1613
  • North Eastern Pennsylvania USA
    • YouTube Channel
Re: Zee Needs Popcorn
« Reply #285 on: August 20, 2018, 01:43:50 AM »
Still following along Zee. Looking good.

-Bob
Proud Member of MEM

My Engine Videos on YouTube-
http://www.youtube.com/user/Notch90usa/videos

Offline Don1966

  • Full Member
  • *****
  • Posts: 6817
  • Columbia, MS
Re: Zee Needs Popcorn
« Reply #286 on: August 20, 2018, 01:46:32 AM »
Damn Zee you actually got a project going boy I been away to long. Good to see you using the new shop and tools buddy!


Don

Offline zeeprogrammer

  • Full Member
  • *****
  • Posts: 6811
  • West Chester, PA, USA
Re: Zee Needs Popcorn
« Reply #287 on: August 20, 2018, 01:51:14 AM »
Thanks guys.
I'll try to remember to get a picture in.

My steady...as you can imagine...is not high quality. I think the fingers are some kind of brass or harder. Not rollers. I didn't even know you could get steady's with rollers.
I see what you're saying Chris. Something to keep in mind in the future.

As I said...I got through the lathe work. Next step is the mill (where all can be ruined).

I was fairly happy with the boring (although the proof will be when the crosshead is in place)...but I was surprised about the last step.
1st step was to drill/bore .625 through all which holds the cross head.
2nd step was to bore larger but not so far (I think just for space/looks).
3rd step was to bore a bit larger to hold the cylinder cover.

3rd step shows quite a bit of chatter although I didn't notice any real difference in sound/feel as I worked it.

Ah...here's the pics...

1st pic is the overall crosshead guide. I'm thinking decent although the transition from the larger diameter to the smaller doesn't show that well in the picture.
The angle is about 56 degrees but I'm thinking it I should have made it larger. Just a cosmetic thing though.

2nd pic shows what I was talking about. The smaller diameter looks okay. Truth will be when the crosshead is put in.
The next diameter also looks okay (keeping in mind it's just space).
You can see the chatter on the larger diameter. I hadn't changed any settings (speed/etc. other than moving to a larger diameter).
I'm thinking it's okay. That's the part that is a close/press fit for the cylinder cover.
In any case...I'm going forward with it.
The milling will be a pucker job and if it fails...then I start all over.

Oh...I should explain...when I flipped the part...there was only about 1 and half inches sticking out. I questioned whether the steady was needed and went ahead and faced and then drilled through.

Drilling was a bit of a "hold my breath". I drilled 1/2". The tailstock doesn't have 4+ inches of travel so I drilled as far as I could...moved the tail stock (and bit) in...and continued to drill. It took about 3 times of moving the tail stock. Went pretty well but I don't know if that's the way a seasoned machinist would do it.
I didn't worry too much because I knew I'd be boring and the boring bar I had was long enough for the what I needed.

Anyhoo...I'm stopping now to enjoy my evening and will let tomorrow be what it is.  ;D

...Got some comments while I was writing this...

@Dave...thanks. I'll try heavy oil next time. But I'm still wondering what people do to (re)condition a fixed steady.
@Bob...I haven't commented on your thread...but I'm looking in.
@Don...You still dancing? I hope so. It's all about the rumba. The tango is dangerous  ;D
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
"To work. To work."
Zee-Another Thread Trasher.

Offline 10KPete

  • Full Member
  • ****
  • Posts: 1606
  • Nordland, WA, USA
Re: Zee Needs Popcorn
« Reply #288 on: August 20, 2018, 02:00:39 AM »

The tailstock doesn't have 4+ inches of travel so I drilled as far as I could...moved the tail stock (and bit) in...and continued to drill. It took about 3 times of moving the tail stock. Went pretty well but I don't know if that's the way a seasoned machinist would do it.


Well, I don't know any other way it could be done....

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

Online crueby

  • Full Member
  • *****
  • Posts: 18557
  • Rochester NY
Re: Zee Needs Popcorn
« Reply #289 on: August 20, 2018, 02:30:01 AM »
Nice, got to be happy to have those steps done!


 :popcorn:

Offline zeeprogrammer

  • Full Member
  • *****
  • Posts: 6811
  • West Chester, PA, USA
Re: Zee Needs Popcorn
« Reply #290 on: August 20, 2018, 02:33:57 AM »
Thanks Pete! My only mentors are here on the forum so it's always great to find out I'm doing okay.

@Chris...yes indeed. It's good to have that done. Drilling that size and that depth is still very new to me. We'll see how the milling goes.
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
"To work. To work."
Zee-Another Thread Trasher.

Offline b.lindsey

  • Global Moderator
  • Full Member
  • *****
  • Posts: 13860
  • Dallas, NC, USA
    • Workbench-Miniatures
Re: Zee Needs Popcorn
« Reply #291 on: August 20, 2018, 02:36:12 AM »
Looks good to me Zee. Nice finish as well.

Bill

Offline zeeprogrammer

  • Full Member
  • *****
  • Posts: 6811
  • West Chester, PA, USA
Re: Zee Needs Popcorn
« Reply #292 on: August 20, 2018, 03:24:55 AM »
Did anyone else notice something about Bill's shop?
Bathroom, fridge...
Add a hot plate, maybe a cot, and I've got a place to stay.
No worries about a cot...I've got a mat. And I have a hot plate.

Probably no worries about a hot plate...when I was in college...I made mac-n-cheese out of a popcorn maker.
That was back when you could get 5 boxes of Kraft for a buck. (The era of ramon noodles hadn't hit yet.)

But...I'll wait for better weather.

That's a lie. I'll wait for the shop to be complete.
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
"To work. To work."
Zee-Another Thread Trasher.

Offline b.lindsey

  • Global Moderator
  • Full Member
  • *****
  • Posts: 13860
  • Dallas, NC, USA
    • Workbench-Miniatures
Re: Zee Needs Popcorn
« Reply #293 on: August 20, 2018, 03:39:04 AM »
There is a fridge, but old. And a hot plate and microwave too.  The hot plate will go, used it back then to vat dye parts. Doubt it will clean up. The microwave is ok I think.

Bill

Offline zeeprogrammer

  • Full Member
  • *****
  • Posts: 6811
  • West Chester, PA, USA
Re: Zee Needs Popcorn
« Reply #294 on: August 20, 2018, 03:45:13 AM »
There is a fridge, but old. And a hot plate and microwave too.  The hot plate will go, used it back then to vat dye parts. Doubt it will clean up. The microwave is ok I think.

Now who here wouldn't take that as an invite?  ;D
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
"To work. To work."
Zee-Another Thread Trasher.

Offline b.lindsey

  • Global Moderator
  • Full Member
  • *****
  • Posts: 13860
  • Dallas, NC, USA
    • Workbench-Miniatures
Re: Zee Needs Popcorn
« Reply #295 on: August 20, 2018, 04:01:52 AM »
Best wait till the power is back on though and the A/C installed  :LittleDevil:

Bill

Offline sbwhart

  • Full Member
  • ****
  • Posts: 745
  • Live Long and Prosper
Re: Zee Needs Popcorn
« Reply #296 on: August 20, 2018, 05:56:58 AM »
Cross head guide looks great Zee and with nice finish  :ThumbsUp:

Stew
A little bit of clearance never got in the way

Offline john mills

  • Full Member
  • ****
  • Posts: 417
Re: Zee Needs Popcorn
« Reply #297 on: August 20, 2018, 08:30:35 AM »
I hope the fingers on the steady are a bronze ,brass is not a bearing material and is soft it would be hard to keep the adjusted  a delicate job as it is. I have taken them out and faced them but often on steel they will wear to the shape pretty quickly .I use oil  even set up a drip oiler,for turning longer shafts .I have used roller tired steadies ,ones on a cheap lathe were radiused and cut like a tube cutter even in steel.usually they would be flat.
I have worked next to a lathe they were turning rollers 2 meters long 800mm dia supported by roller tipped steady.on longer jobs it is a constant job keeping the adjustment right  for bronze tips.
looks like your getting on ok .
« Last Edit: August 20, 2018, 08:39:54 AM by john mills »

Offline zeeprogrammer

  • Full Member
  • *****
  • Posts: 6811
  • West Chester, PA, USA
Re: Zee Needs Popcorn
« Reply #298 on: August 20, 2018, 02:32:33 PM »
Thanks guys.

Thanks for the help on the follower John. (And the fingers look like bronze.)
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
"To work. To work."
Zee-Another Thread Trasher.

Offline Baner

  • Full Member
  • ****
  • Posts: 69
  • Cowaramup, Western Australia
Re: Zee Needs Popcorn
« Reply #299 on: August 20, 2018, 04:10:57 PM »
This thread moves fast, it's hard to keep up!
The steady rest on my bigger lathe came with bronze fingers, and I added rollers as well. (Photo1) These can be removed and the fingers use instead. The rollers are known as cam followers and come pretty cheap on ebay. Bronze fingers can be fine but tend to mar soft metals as you found out. They're also difficult to set up - it can be hard to tell when they've contacted the work.
Rollers generally won't mar the work if set up correct, and are easy to tell when they make contact - they start spinning. However, they can, like Pete said, mash chips into the work. Photo 2 shows a simple chip shield cut out of paper that stops (most) of the chips getting under the rollers.
As usual, different methods work better in different situations.

Dave.

 

SimplePortal 2.3.5 © 2008-2012, SimplePortal