Shop Floor Talk  

Go Back   Shop Floor Talk > Welding and Metalworking Forums > Fabrication

SFT Search:   
Reply
 
Thread Tools Display Modes
  #1  
Old 08-27-2012, 11:08 AM
bigegg's Avatar
bigegg bigegg is offline
Member
 
Join Date: Jul 2012
Location: Yorkshire, England
Posts: 98
Default Car Repair Pit Ramps

My latest project, made for friend in neighbouring industrial unit who repairs and sells second hand cars and vans.

50x50x5mm (2x2x3/8? in)Angle for the rails
40x40x3mm (1 5/8 x1 5/8 x 1/8 in) box for the uprights
25x25x2mm (1x1x3/32? in) for the ramp infill.

welded with a Clarke TE190 buzz box and used a full 5kg box of el cheapo 2.5mm rods.

Steel cost me just short of 200 quid (350? dollars US)
and about 25 hours welding (plus about another 20hrs designing)

They're just over 12 foot long.
The ramp is 9ft, the box is 3 foot.
Height is 2ft.
Attached Thumbnails
Click image for larger version

Name:	ramp0.jpg
Views:	915
Size:	90.9 KB
ID:	94801   Click image for larger version

Name:	ramp01.jpg
Views:	889
Size:	89.3 KB
ID:	94802   Click image for larger version

Name:	ramp2.jpg
Views:	891
Size:	80.5 KB
ID:	94803   Click image for larger version

Name:	ramp3.jpg
Views:	883
Size:	82.0 KB
ID:	94804   Click image for larger version

Name:	ramp4.jpg
Views:	868
Size:	83.8 KB
ID:	94805  

Reply With Quote
  #2  
Old 08-27-2012, 11:18 AM
digger doug's Avatar
digger doug digger doug is offline
Banned
 
Join Date: Jan 2008
Location: NW Pa
Posts: 14,033
Default

Nice concept, but I sure would like to see some "X" bracing
on that square box, as well as the next "bay" behind it,
the tapered one.
Reply With Quote
  #3  
Old 08-27-2012, 11:18 AM
Boogity's Avatar
Boogity Boogity is offline
Senior Member
 
Join Date: Jul 2005
Location: Rural Indiana, USA
Posts: 797
Default

Nice job bigegg. Those things are soooooo handy when needed. My biggest concern would be where to put it when it's not in use. Somebody had better splash a liter of paint on it or it will turn a nice shade of brown all by itself.
__________________
Boogity

Our Republic can survive a Barack Obama, who is merely a fool. It is less likely to survive a multitude of fools such as those who made him our president.
Reply With Quote
  #4  
Old 08-27-2012, 11:20 AM
RancherBill's Avatar
RancherBill RancherBill is offline
there has to be an answer
 
Join Date: Mar 2008
Location: DeWinton, Alberta
Posts: 5,434
Default

It looks very functional. Nice job.

Welcome to SFT.
__________________
Warning Disclaimer What am I doing?
Reply With Quote
  #5  
Old 08-27-2012, 11:33 AM
bigegg's Avatar
bigegg bigegg is offline
Member
 
Join Date: Jul 2012
Location: Yorkshire, England
Posts: 98
Default

Quote:
Originally Posted by Boogity View Post
Nice job bigegg. Those things are soooooo handy when needed. My biggest concern would be where to put it when it's not in use. Somebody had better splash a liter of paint on it or it will turn a nice shade of brown all by itself.
He's got a BIG unit - and most of the time it will have "deal of the week" parked on it.
I don't do paint
Mrs Egg has volunteered to splash some red oxide on it.
Reply With Quote
  #6  
Old 08-27-2012, 11:36 AM
bigegg's Avatar
bigegg bigegg is offline
Member
 
Join Date: Jul 2012
Location: Yorkshire, England
Posts: 98
Default

Quote:
Originally Posted by digger doug View Post
Nice concept, but I sure would like to see some "X" bracing
on that square box, as well as the next "bay" behind it,
the tapered one.
I considered that, and you are quite possibly right.
I based the design on these:

http://www.restorationramps.co.uk

which don't have the crossbracing.
Reply With Quote
  #7  
Old 08-27-2012, 12:00 PM
digger doug's Avatar
digger doug digger doug is offline
Banned
 
Join Date: Jan 2008
Location: NW Pa
Posts: 14,033
Default

Quote:
Originally Posted by bigegg View Post
I considered that, and you are quite possibly right.
I based the design on these:

http://www.restorationramps.co.uk

which don't have the crossbracing.
Well, I look at the failure mode.

When tilting, if one buckles, (and they probably would never buckle
both at the same moment) the car goes off on one side.

Very bad.

Seeing how your using them on any surface (not bolted down)
I would be concerned the one might be slightly un-even
loaded (inducing a slight twist through the frame) and down
it goes.
Reply With Quote
  #8  
Old 08-27-2012, 12:03 PM
bigegg's Avatar
bigegg bigegg is offline
Member
 
Join Date: Jul 2012
Location: Yorkshire, England
Posts: 98
Default

Quote:
Originally Posted by digger doug View Post
Well, I look at the failure mode.

When tilting, if one buckles, (and they probably would never buckle
both at the same moment) the car goes off on one side.

Very bad.

Seeing how your using them on any surface (not bolted down)
I would be concerned the one might be slightly un-even
loaded (inducing a slight twist through the frame) and down
it goes.
You've convinced me.
For the sake of 20 minutes and a couple of foot of angle, it would be silly not to.
Reply With Quote
  #9  
Old 08-27-2012, 12:06 PM
digger doug's Avatar
digger doug digger doug is offline
Banned
 
Join Date: Jan 2008
Location: NW Pa
Posts: 14,033
Default

Quote:
Originally Posted by bigegg View Post
You've convinced me.
For the sake of 20 minutes and a couple of foot of angle, it would be silly not to.
Well, I looked at the linked website, and while they are nice, it appears
they are a one man operation (heck they wanted money
up front just to get them to build your order)

Meaning they don't have much to lose if they get sued, don't have any
money for a proper engineer job, nor any insurance.
Reply With Quote
  #10  
Old 08-27-2012, 12:19 PM
bigegg's Avatar
bigegg bigegg is offline
Member
 
Join Date: Jul 2012
Location: Yorkshire, England
Posts: 98
Default

Quote:
Originally Posted by digger doug View Post
Well, I looked at the linked website, and while they are nice, it appears
they are a one man operation (heck they wanted money
up front just to get them to build your order)

Meaning they don't have much to lose if they get sued, don't have any
money for a proper engineer job, nor any insurance.
They've been around a fair few years, however - I remember reading their advert in one of the car magazines at least 8 or 10 years ago.
Reply With Quote
Reply

Thread Tools
Display Modes

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

Web Search:

All times are GMT -5. The time now is 10:25 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, vBulletin Solutions Inc.