Choose your color scheme:
The Vette Barn  
 
Go Back   The Vette Barn > Off Topic/Babes/Other > Off Topic

Off Topic Off Topic - General non-Corvette related discussion.

User Tag List

Reply
 
Share Thread Tools Search this Thread
Old 02-15-2017, 8:26pm   #1
JRD77VET
Barn Stall Owner #327
NCM Supporter '16,'17,'19,'20
Bantayan Kids '13,'14,'15,'17
GTMS ‘18
Points: 115,508, Level: 100
Activity: 13.3%
 
JRD77VET's Avatar
 
Join Date: Jan 2011
Location: Zionsville,PA
Posts: 49,035
Thanks: 25,745
Thanked 21,856 Times in 8,891 Posts
Gameroom Barn Bucks: $5976008
Cool Machined some teflon tubing today --videos in thread

I have eight pieces of teflon tubing to machine today for a repair on a dough roller. Each piece of teflon is 7-5/8" outside diameter with an inside diameter of 4-3/4" and came in at just over 17" long. I would estimate each piece of teflon would cost between $750 and $1000 each.

I need to cut them to a specific length and bore them to around 5-1/4" with a tolerance of +/-.004 After I'm done, four of them will get pressed onto a stainless steel roller and machined to a specific diameter.

First two videos show the Daewoo 600 CNC lathe using a carbide cutoff tool to cut the tube close to finish length. Teflon is soft and distorts easily so I am holding in in "soft jaws". Soft jaws are steel and in this case, bored to a certain diameter to hold the teflon over the entire length.

The hydraulic chuck is 24" in diameter and the jaws are made out of 3" square hot rolled steel, 14-1/2" long. It's spinning about 600 rpm


same operation, slightly different view. the safety glass is designed to absorb an impact and a replacement piece was $750 about 12 years ago ( not I, a former coworker )



Now the end that was just cut off square is placed against the chuck. The machine is programed for "constant surface feet" so as it faces ( cuts ) and gets smaller, the RPM increases. The tool used can either face ( as shown ) or turn the diameter.

I also put a countersink using a boring bar



This is the final operation. The part is flipped end for end and faced to length. Then a very stout homemade boring bar is used to cut the inside diameter ( bore ) for a total length of 15-1/4" After each cut, I turned off the spindle and removed the chips so they don't jam against the boring bar and "do nasty things" ( like melt )

Teflon can be cut dry or with coolant. I cut it dry so I could video this for you folks

JRD77VET is offline   Reply With Quote
The Following 11 Users Say Thank You to JRD77VET For This Useful Post:
Old 02-15-2017, 8:37pm   #2
Jeff '79
Barn Stall Owner #2112
Fantasy Football Champ '14,'16,'20
Bantayan Kids '13
Points: 160,883, Level: 100
Activity: 7.1%
 
Jeff '79's Avatar
 
Join Date: Jan 2011
Location: WHERE I LAY MY HEAD IS HOME - REHO BEACH DELAWARE
Posts: 42,419
Thanks: 6,373
Thanked 10,607 Times in 6,383 Posts
Gameroom Barn Bucks: $3043611
Default

BORING !!!!

I always wondered how pipes were made.
Now I know.
Jeff '79 is offline   Reply With Quote
Old 02-15-2017, 8:46pm   #3
simpleman68
Barn Stall Owner #17
Barn Raising II

NCM Supporter '12,'14,'15,'16,'17,'19
Bantayan Kids '13,'14,'15,'17
GTMS ‘18
Points: 42,073, Level: 100
Activity: 8.3%
 
simpleman68's Avatar
 
Join Date: Jun 2011
Location: PA/FL
Posts: 16,379
Thanks: 3,721
Thanked 8,104 Times in 4,238 Posts
Gameroom Barn Bucks: $10510030
Default

Neat to see some softer material get milled. I would never have thought teflon was that pricey.

Thanks for cutting dry so we can see what's going on.
Scott
__________________
Vette-less but not without toys
simpleman68 is offline   Reply With Quote
The Following User Says Thank You to simpleman68 For This Useful Post:
Old 02-15-2017, 8:59pm   #4
JRD77VET
Barn Stall Owner #327
NCM Supporter '16,'17,'19,'20
Bantayan Kids '13,'14,'15,'17
GTMS ‘18
Points: 115,508, Level: 100
Activity: 13.3%
 
JRD77VET's Avatar
 
Join Date: Jan 2011
Location: Zionsville,PA
Posts: 49,035
Thanks: 25,745
Thanked 21,856 Times in 8,891 Posts
Gameroom Barn Bucks: $5976008
Default

Quote:
Originally Posted by simpleman68 View Post
Neat to see some softer material get milled. I would never have thought teflon was that pricey.

Thanks for cutting dry so we can see what's going on.
Scott

It got "turned" .


From McMaster Carr. 7" od , 1" wall ( 5" id ) and 12" long is just under $580
https://www.mcmaster.com/#8556k97/=16depbk

I usually have to run coolant and if the coolant turns on when you have the door open, it will soak your pants and shirt THRU to the skin in a second. It has a high pressure pump that will fill a 5 gallon jug thru a 1/4" line in well under a minute.
JRD77VET is offline   Reply With Quote
Old 02-15-2017, 9:02pm   #5
simpleman68
Barn Stall Owner #17
Barn Raising II

NCM Supporter '12,'14,'15,'16,'17,'19
Bantayan Kids '13,'14,'15,'17
GTMS ‘18
Points: 42,073, Level: 100
Activity: 8.3%
 
simpleman68's Avatar
 
Join Date: Jun 2011
Location: PA/FL
Posts: 16,379
Thanks: 3,721
Thanked 8,104 Times in 4,238 Posts
Gameroom Barn Bucks: $10510030
Default

Quote:
Originally Posted by JRD77VET View Post
It got "turned" .


From McMaster Carr. 7" od , 1" wall ( 5" id ) and 12" long is just under $580
https://www.mcmaster.com/#8556k97/=16depbk

I usually have to run coolant and if the coolant turns on when you have the door open, it will soak your pants and shirt THRU to the skin in a second. It has a high pressure pump that will fill a 5 gallon jug thru a 1/4" line in well under a minute.
Damn, that's a LOT of pressure.

So it would be accurate to say "you turned out some good work"
Scott
__________________
Vette-less but not without toys
simpleman68 is offline   Reply With Quote
The Following User Says Thank You to simpleman68 For This Useful Post:
Old 02-16-2017, 7:58am   #6
mrvette
Latin American Goat Roper
Barn Stall Owner #101
Bantayan Kids '13
Points: 132,350, Level: 100
Activity: 10.8%
 
mrvette's Avatar
 
Join Date: Nov 2009
Location: Orange Park Florida
Posts: 60,581
Thanks: 32,797
Thanked 11,529 Times in 5,686 Posts
Gameroom Barn Bucks: $1138393
Default

[QUOTE=JRD77VET;1541068]I have eight pieces of teflon tubing to machine today for a repair on a dough roller. Each piece of teflon is 7-5/8" outside diameter with an inside diameter of 4-3/4" and came in at just over 17" long. I would estimate each piece of teflon would cost between $750 and $1000 each.

I have heard of rolling in dough, but never a dough roller.....so I got to ask....

I ASSume it's a machine in a bakery?? if so, what is the specs on the silly plastic doing so tight,?? seems to me that a hose and a hose clamp like on my car would do ok.....

mrvette is online now   Reply With Quote
Old 02-16-2017, 8:33am   #7
OddBall
A Real Barner
Points: 50,207, Level: 100
Activity: 36.0%
 
OddBall's Avatar
 
Join Date: Jan 2011
Location: Winston Salem NC
Posts: 30,058
Thanks: 10,935
Thanked 10,517 Times in 5,423 Posts
Gameroom Barn Bucks: $29466197
Default

You got the coolest toys.
OddBall is offline   Reply With Quote
The Following User Says Thank You to OddBall For This Useful Post:
Old 02-16-2017, 10:34am   #8
Iron Chef
Barn Stall Owner #1
Barn Raising I, II
NCM Supporter '11, '12
Points: 51,710, Level: 100
Activity: 1.3%
 
Iron Chef's Avatar
 
Join Date: Oct 2009
Location: VB Know-It-All
Posts: 10,747
Thanks: 1,810
Thanked 8,642 Times in 2,902 Posts
Gameroom Barn Bucks: $2299270
Default

Quote:
Originally Posted by OddBall View Post
You got the coolest toys.


Jeff, just curious...do you have a 5-axis machine at your company?
Iron Chef is offline   Reply With Quote
Old 02-16-2017, 2:08pm   #9
Datawiz
VB Dad of the Year
RDBM
Barn Stall Owner #9

Barn Raising I,II
NCM Supporter '11,'12,'13,'14,'15,'16,'17,'19,'20,'21
Bantayan Kids '13,'14,'15,'17
GTMS ‘18
Points: 123,315, Level: 100
Activity: 27.0%
 
Datawiz's Avatar
 
Join Date: Jan 2011
Location: Fort Myers
Posts: 36,499
Thanks: 10,143
Thanked 21,044 Times in 8,310 Posts
Gameroom Barn Bucks: $35999378
Default

I'm guessing the scrap material doesn't stick to anything?
Datawiz is offline   Reply With Quote
Old 02-16-2017, 3:34pm   #10
Iron Chef
Barn Stall Owner #1
Barn Raising I, II
NCM Supporter '11, '12
Points: 51,710, Level: 100
Activity: 1.3%
 
Iron Chef's Avatar
 
Join Date: Oct 2009
Location: VB Know-It-All
Posts: 10,747
Thanks: 1,810
Thanked 8,642 Times in 2,902 Posts
Gameroom Barn Bucks: $2299270
Default

Quote:
Originally Posted by datawiz View Post
I'm guessing the scrap material doesn't stick to anything?
The company is a Trump subsidiary.
Iron Chef is offline   Reply With Quote
The Following User Says Thank You to Iron Chef For This Useful Post:
Old 02-16-2017, 8:15pm   #11
JRD77VET
Barn Stall Owner #327
NCM Supporter '16,'17,'19,'20
Bantayan Kids '13,'14,'15,'17
GTMS ‘18
Points: 115,508, Level: 100
Activity: 13.3%
 
JRD77VET's Avatar
 
Join Date: Jan 2011
Location: Zionsville,PA
Posts: 49,035
Thanks: 25,745
Thanked 21,856 Times in 8,891 Posts
Gameroom Barn Bucks: $5976008
Default

[quote=mrvette;1541134]
Quote:
Originally Posted by JRD77VET View Post
I have eight pieces of teflon tubing to machine today for a repair on a dough roller. Each piece of teflon is 7-5/8" outside diameter with an inside diameter of 4-3/4" and came in at just over 17" long. I would estimate each piece of teflon would cost between $750 and $1000 each.

I have heard of rolling in dough, but never a dough roller.....so I got to ask....

I ASSume it's a machine in a bakery?? if so, what is the specs on the silly plastic doing so tight,?? seems to me that a hose and a hose clamp like on my car would do ok.....

Yes, a dough rolling machine for bakery. The tight tolerance is to make sure the teflon stays on the roller and does not slip or move.

The hose clamp might work for your own personal stuff but the Health Board mandates sterile surfaces. The hose clamp would have too many nooks and crannies.

Quote:
Originally Posted by Iron Chef View Post


Jeff, just curious...do you have a 5-axis machine at your company?
No 5 axis but all three CNC mills have a 4th axis. The two horizontal are indexers ( one is every degree and the other is every thirty seconds [ 1/2 degree] )

The vertical mill has a contouring head. With that 4th axis, we can cut radial grooves or even threads.

Here's a stainless steel roller I made for a pretzel bakery. The grooves are to put salt on the pretzels.



Quote:
Originally Posted by datawiz View Post
I'm guessing the scrap material doesn't stick to anything?
No but it will wrap around the chuck pretty freaking fast.
JRD77VET is offline   Reply With Quote
The Following 2 Users Say Thank You to JRD77VET For This Useful Post:
Old 02-16-2017, 8:19pm   #12
JRD77VET
Barn Stall Owner #327
NCM Supporter '16,'17,'19,'20
Bantayan Kids '13,'14,'15,'17
GTMS ‘18
Points: 115,508, Level: 100
Activity: 13.3%
 
JRD77VET's Avatar
 
Join Date: Jan 2011
Location: Zionsville,PA
Posts: 49,035
Thanks: 25,745
Thanked 21,856 Times in 8,891 Posts
Gameroom Barn Bucks: $5976008
Default

Here's the roller in the lathe today. The roller is 5' long and finished at just under 6" in diameter. I adjusted the program to keep the diameter within .001 ( one thousandths of an inch ) over the entire length.

Just cell phone pics as I didn't take the camera today.
Attached Thumbnails
teflon 1.jpg  

teflon 2.jpg  

JRD77VET is offline   Reply With Quote
The Following User Says Thank You to JRD77VET For This Useful Post:
Old 02-17-2017, 6:26am   #13
Superstreet
Barn Stall Owner #28
Points: 20,819, Level: 99
Activity: 0.9%
 
Superstreet's Avatar
 
Join Date: Nov 2009
Location: Dow,IL
Posts: 7,554
Thanks: 1,559
Thanked 1,731 Times in 1,193 Posts
Gameroom Barn Bucks: $1346307
Default

Love this stuff!
Superstreet is offline   Reply With Quote
Old 02-17-2017, 6:33am   #14
Superstreet
Barn Stall Owner #28
Points: 20,819, Level: 99
Activity: 0.9%
 
Superstreet's Avatar
 
Join Date: Nov 2009
Location: Dow,IL
Posts: 7,554
Thanks: 1,559
Thanked 1,731 Times in 1,193 Posts
Gameroom Barn Bucks: $1346307
Default

Quote:
Originally Posted by Iron Chef View Post


Jeff, just curious...do you have a 5-axis machine at your company?
We just procured a 5-axis for my lab at work at the end of last year. Ran power to it last month and it's up and running now.
Superstreet is offline   Reply With Quote
The Following 2 Users Say Thank You to Superstreet For This Useful Post:
Old 02-17-2017, 8:03am   #15
Giraffe (He/Him)
Goldilocks
Barn Stall Owner #905

Bantayan Kids '13,'15
Points: 110,529, Level: 100
Activity: 0%
 
Giraffe (He/Him)'s Avatar
 
Join Date: Jan 2011
Location: My butt's been wiped.
Posts: 30,980
Thanks: 5,226
Thanked 16,607 Times in 7,133 Posts
Gameroom Barn Bucks: $1009320
Default

Quote:
Machined some teflon tubing today
I duct taped my shoe yesterday.
Giraffe (He/Him) is offline   Reply With Quote
The Following User Says Thank You to Giraffe (He/Him) For This Useful Post:
Old 02-17-2017, 9:33am   #16
DAB
Sparkles Flambeaux
Barn Stall Owner #4
Barn Raising I,II
NCM Supporter '13,'14,'15,'16,'17,'21
Bantayan Kids '13,'14,'15,'17
Points: 171,399, Level: 100
Activity: 7.6%
 
DAB's Avatar
 
Join Date: Jan 2011
Location: Santa Fe, NM
Posts: 61,434
Thanks: 11,767
Thanked 32,997 Times in 14,148 Posts
Gameroom Barn Bucks: $17500122
Default

Quote:
Originally Posted by Thomas View Post
I duct taped my shoe yesterday.
Man has to know his limitations.
DAB is offline   Reply With Quote
Old 02-17-2017, 11:48am   #17
Rotorhead
Barn Stall Owner #38
Points: 15,718, Level: 86
Activity: 2.1%
 
Rotorhead's Avatar
 
Join Date: Jan 2011
Location: Isla Darwin
Posts: 4,944
Thanks: 909
Thanked 675 Times in 437 Posts
Gameroom Barn Bucks: $2497584
Default

Quote:
Originally Posted by DAB View Post
Man has to know his limitations.
Because tying it would exceed so many limits.
Rotorhead is offline   Reply With Quote
Reply

The Vette Barn > Off Topic/Babes/Other > Off Topic


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 6:19pm.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
Copyright © 2009 - 2024 The Vette Barn


Support the Barn:
 
Download the Mobile App;
 
Follow us on Facebook:

Become a Stall Owner

 

Apple iOS App        Google Android App

 

Visit our Facebook page