LocostUSA.com

Learning how to build Lotus Seven replicas...together!
It is currently August 18, 2017, 12:30 pm

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 61 posts ]  Go to page Previous  1, 2, 3, 4, 5  Next
Author Message
PostPosted: October 31, 2015, 7:23 am 
Offline

Joined: February 28, 2009, 11:09 pm
Posts: 1201
Location: Connersville, Indiana
If your looking for a lot of somewhat diffused heat, consider an air/propane torch. I took this
Image
modified parts so they would screw onto a cut off welding tip
Image so it looks like this
Image

Here is the final product
Image

The propane torch orifice was removed and the air entrance holes were closed by soldering a copper tubing coupling over them. The smaller head will turn a small lump of steel a nice bright red.

It operates on about 20 psi of air and propane.

Bill


Top
 Profile  
Reply with quote  
PostPosted: November 1, 2015, 7:45 am 
Offline
User avatar

Joined: July 20, 2010, 7:56 pm
Posts: 436
Location: Warrenton, Virginia
That is a respectable looking flame.
If you cover the air entrance holes, how is the 20 psi of air introduced?
Do you think this setup could heat a 6" section of 3/4 x .065 tube enough for a clean 90 degree bend?
Thinking about cost effectiveness, how many bottles do you guess it would take to do a dozen bends?
I wonder if the cost of the bottles would be enough to pay for the torch Lonnie found!

I'm asking because I like to have as much clear information on all possible options as I can gather.
Who knows, the knowledge might be useful, down the road, applied in a different way. :)

Ron

_________________
"Age is an issue of mind over matter. If you don't mind, it doesn't matter." - Mark Twain


Top
 Profile  
Reply with quote  
PostPosted: December 14, 2015, 4:47 pm 
Offline
User avatar

Joined: July 20, 2010, 7:56 pm
Posts: 436
Location: Warrenton, Virginia
Locost tube bending heat source.
Attachment:
BDKiln001.jpg
BDKiln001.jpg [ 125.25 KiB | Viewed 1046 times ]

Attachment:
BDKiln002.jpg
BDKiln002.jpg [ 126.29 KiB | Viewed 1046 times ]

Attachment:
BDKiln003.jpg
BDKiln003.jpg [ 115.24 KiB | Viewed 1046 times ]

Attachment:
BDKiln004.jpg
BDKiln004.jpg [ 111.76 KiB | Viewed 1046 times ]

Attachment:
BDKiln005.jpg
BDKiln005.jpg [ 138.36 KiB | Viewed 1046 times ]

Attachment:
BDKiln006.jpg
BDKiln006.jpg [ 116.03 KiB | Viewed 1046 times ]

Attachment:
BDKiln007.jpg
BDKiln007.jpg [ 155.76 KiB | Viewed 1046 times ]


All for now.

Ron

_________________
"Age is an issue of mind over matter. If you don't mind, it doesn't matter." - Mark Twain


Top
 Profile  
Reply with quote  
PostPosted: December 15, 2015, 8:47 am 
Offline

Joined: February 28, 2009, 11:09 pm
Posts: 1201
Location: Connersville, Indiana
Ron, let me apologize for neglecting your question. For some reason, I did not see your question until today. Worse, your questions are quite legitimate and the result of the incompleteness of my post.

Ignore the photo of the Lp gas bottle. It's purpose was only to identify the source of the nozzle. The modified nozzle is used on an acetylene torch, using a 20 lb LP cylinder for fuel and compressed air for oxygen.
Image
I think this should answer most of your questions. If not, I promise to pay better attention to enquiries this time.

Bill


Top
 Profile  
Reply with quote  
PostPosted: December 15, 2015, 9:47 am 
Offline
User avatar

Joined: July 20, 2010, 7:56 pm
Posts: 436
Location: Warrenton, Virginia
Thanks Bill! That I can understand. :wink:
Very clever setup.

Ron

_________________
"Age is an issue of mind over matter. If you don't mind, it doesn't matter." - Mark Twain


Top
 Profile  
Reply with quote  
PostPosted: December 15, 2015, 7:15 pm 
Offline
Automotive Encyclopedia
User avatar

Joined: December 22, 2006, 2:05 pm
Posts: 5556
I am not sure I would be heating a capped steel roll bar tube packed full of sand that may have some amount of moisture in it, if that is where this is headed.

_________________
MV8

https://www.youtube.com/watch?v=Om3C1Ep ... D3E18BB447


Top
 Profile  
Reply with quote  
PostPosted: December 15, 2015, 9:56 pm 
Offline
User avatar

Joined: March 30, 2011, 7:18 am
Posts: 1111
Location: central Arkansas
A 1/8" vent hole would be sufficient to bleed off any steam. And the SCCA requires an inspection hole anyway...


Top
 Profile  
Reply with quote  
PostPosted: December 16, 2015, 7:40 am 
Offline
Automotive Encyclopedia
User avatar

Joined: December 22, 2006, 2:05 pm
Posts: 5556
The sand that is supposed to keep the pipe from collapsing would be getting forced out of the hole. Don’t know how critical it would be and I wouldn’t have it near the bend.

I’d make extra sure there is no clay/soil content to the sand, so a washed aquarium or beach sand may work, along with preheating by passing the packed tube through the fire with loose capped ends to help drive out any moisture and of course, nothing or any person in the trajectory that could be damaged by an end popping out during bending, kind of like catching the door lock in the gut as it punched in “No Country for Old Men”.

_________________
MV8

https://www.youtube.com/watch?v=Om3C1Ep ... D3E18BB447


Top
 Profile  
Reply with quote  
PostPosted: December 16, 2015, 8:11 am 
Offline
User avatar

Joined: July 20, 2010, 7:56 pm
Posts: 436
Location: Warrenton, Virginia
You guys are right. If all the necessary steps aren't followed, someone could be injured.
The plan is to use the white playground sand from Home Depot.
Bake the sand in a shallow pan in the oven twice to remove it's moisture.
Preheat the tubes over the forge.
Seal one end and tack weld pipe with a screw on cap on the other end.(The space between the large tacks should allow for venting of remaining pressure)
Attachment:
551,2,3sm.jpg
551,2,3sm.jpg [ 109.07 KiB | Viewed 956 times ]


This method will be attempted for 1/2", 3/4" and 1" tubes. A tube bender with anvils will be used for the roll bar size tubes.

Ron

12,21,2105
Pieced together an ash dump lever.
Attachment:
KilnDump01.jpg
KilnDump01.jpg [ 124.27 KiB | Viewed 906 times ]

Attachment:
KilnDump02.jpg
KilnDump02.jpg [ 121.78 KiB | Viewed 906 times ]


Ron

_________________
"Age is an issue of mind over matter. If you don't mind, it doesn't matter." - Mark Twain


Top
 Profile  
Reply with quote  
PostPosted: October 31, 2016, 3:21 am 
Offline

Joined: September 20, 2016, 3:52 pm
Posts: 6
how are the seats coming along?


Top
 Profile  
Reply with quote  
PostPosted: November 1, 2016, 5:58 pm 
Offline
User avatar

Joined: July 20, 2010, 7:56 pm
Posts: 436
Location: Warrenton, Virginia
The seats are still a part of the plan. The only change to the plan is the use of Civic head rests instead of the MGB style. This will require that the top of the seats have a small flat area.
Attachment:
CivicHeadrest01.jpg
CivicHeadrest01.jpg [ 126.56 KiB | Viewed 629 times ]

Attachment:
CivicHeadrest02.jpg
CivicHeadrest02.jpg [ 124.67 KiB | Viewed 629 times ]

I've been working on MG stuff all summer. Picked up 2 1967 MGB GTs,
Attachment:
1967MGB GT 2.jpg
1967MGB GT 2.jpg [ 118.98 KiB | Viewed 629 times ]

They both run, but need work to move under there own power. I need to manage at least that before work can continue on the "7" and it's seats.
Ron

_________________
"Age is an issue of mind over matter. If you don't mind, it doesn't matter." - Mark Twain


Top
 Profile  
Reply with quote  
PostPosted: July 30, 2017, 2:53 am 
Offline

Joined: September 20, 2016, 3:52 pm
Posts: 6
Any progress with the seats?


Top
 Profile  
Reply with quote  
PostPosted: August 12, 2017, 7:40 am 
Offline
User avatar

Joined: July 20, 2010, 7:56 pm
Posts: 436
Location: Warrenton, Virginia
JSArmstrong,
No more progress yet. I see I started this thread in 2014. Way past time to do something with it.

The MGBs have become a time sucking hole. I now have 2 1967 MGB GTs, a 1970 MGB GT and a 1978 Roadster to restore. I can't really believe I"ll be able to get to them all in my lifetime. I hope to have one 67 on the road, sporting Antique plates by mid September. After that the STRanger 7 gets all the attention until it's on the road.

I'll gather the elements required to bend the 1/2" tubes and post the resulting pictures in the next 2 to 3 weeks.
Maybe that will kick start things again.

Ron

_________________
"Age is an issue of mind over matter. If you don't mind, it doesn't matter." - Mark Twain


Top
 Profile  
Reply with quote  
PostPosted: August 15, 2017, 1:59 pm 
Offline
User avatar

Joined: July 20, 2010, 7:56 pm
Posts: 436
Location: Warrenton, Virginia
Quick refresher.
These pieces will be bent using sand and heat.
Attachment:
Forms08b.jpg
Forms08b.jpg [ 84.33 KiB | Viewed 46 times ]

Where they fit in the frame.
Attachment:
15inchVersion3.jpg
15inchVersion3.jpg [ 85.58 KiB | Viewed 46 times ]

The form used.
Attachment:
Form 4 sand bending.jpg
Form 4 sand bending.jpg [ 98.79 KiB | Viewed 46 times ]

Ron

_________________
"Age is an issue of mind over matter. If you don't mind, it doesn't matter." - Mark Twain


Top
 Profile  
Reply with quote  
PostPosted: August 16, 2017, 10:31 am 
Online
User avatar

Joined: October 24, 2008, 2:13 pm
Posts: 3063
Location: Carlsbad, California, USA
Glad to see you're back at these seats, Ron.

Cheers,

_________________
Damn! That front slip angle is way too large and the Ackerman is just a muddle.

Build Log: viewtopic.php?f=35&t=5886


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 61 posts ]  Go to page Previous  1, 2, 3, 4, 5  Next

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
POWERED_BY