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Fabrication DIY videos?

Alexander

Ultra Member
Administrator
I am wondering if anyone has some suggestions on a youtuber or blog about fabrication? I am struggling a bit to come up with inspiration on how to make a bumper at home with basic tools. I attached a few photos so you get what I'm after help-i-accidentally-built-a-jeep-meme.jpg
 

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DPittman

Ultra Member
Premium Member
Well its not for a jeep but I've seen a few threads building bumpers for Xterra on thenewx.org site

If you are wanting to make a bumper as shown, that shouldn't be "too" hard. It's when you get some funky angles and bends in it that get difficult for basic homeshop resources.

I hoed and hummed about making a bumper for my rig (not a jeep) and decided that it was beyond my resources and skills to accomplish and ended up paying pretty dearly for a commercially made one. I've always admired all the choices for aftermarket accessories for jeep (unlike my xterra).
 

Alexander

Ultra Member
Administrator
I attached a picture of my front bumper. I don't actually think it is very good. The other two pictures are just some tube I could make the rear bumper out of. Ill check out that link you shared :)
 

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YYCHM

(Craig)
Premium Member
Man, you have lost me here. Where are you now and where do you want to go???? Front bumper, back bumper and why?


What's wrong about the one?

20200825_222417-jpg.11551
 
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Alexander

Ultra Member
Administrator
I have the steel front bumper installed and now I want to make a steel back bumper.
 

kevin.decelles

Jack of all trades -- Master of none
Premium Member
I've only made bumpers for my 5th wheel trailers so I could support a receiver to tow a boat behind. The bumper that comes w/Rv's is useless and not structure. It typically comes down to how to attach to the frame -- advise starting there and working back..... how will it attach.

Once you do that, how would you get it off? Or is it permanent? Bolt on? Weld?

We installed one of those towable kits on a Jeep Compass so it could be towed behind a Class-A motorhome. The mounting was about 12 bolts to the frame, and the tow-links connect via tubing (round). Very slick. I like that. I'd probably look to install the bumper so you have 2 or 3 pieces of pipe mounted to the jeep, and the bumper 'slips' over those and is bolted/pinned on.

I don't have any go-to video blogs etc., only a classical 'farmer-engineering' background and lots of overbuilt, over-welded contraptions kicking around..... (but none that failed me!)
 

kevin.decelles

Jack of all trades -- Master of none
Premium Member
Here is the brand of tow-bar we installed.... from a company called Blue-Ox. Blue Ox

What impressed me with their design was that it was invisible once you removed the link.... a twist lock pin / D-pin was all there was. Very slick.
 

YYCHM

(Craig)
Premium Member
19255-0ce2a46a7a9d54d75a7bc86107ffb089.jpg


What is the machine on the right side in this image?

BTB - Your square tube bumper looks just fine to me..... maybe paint it?
 
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Alexander

Ultra Member
Administrator
I am going to try milling a cut out for the spare tire. I would like to cut this free hand with a plasma cutter. But I don't have one and I would imagine you need a pretty big plasma cutter for this quarter inch steel? @Janger will your Everlast cut something like this out?
 

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Alexander

Ultra Member
Administrator
Results are clean. I wrote the program in Microsoft notepad to save time
 

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Alexander

Ultra Member
Administrator
@Tom O thanks. I may take you up on that. This took a little longer than I wanted it to. But then again I am not a fabricator. I will weld 3 plates in here tomorrow for a cleaner look
 

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Janger

(John)
Administrator
Vendor
I can’t get cuts with the plasma anywhere near that clean. Even with a guide. Even with a manual torch sled. You can’t pull the torch at the correct and constant enough speed. It needs to be moved by a machine.
 

CalgaryPT

Ultra Member
Vendor
Premium Member
I can’t get cuts with the plasma anywhere near that clean. Even with a guide. Even with a manual torch sled. You can’t pull the torch at the correct and constant enough speed. It needs to be moved by a machine.
You probably know this already John, and I agree that speed is the toughest thing to control manually. But do you notice any improvement with proper drag tips? I found I get a much more consistent cut with a vented drag tip, at least on the Hypertherm. A lot of plasma cutters ship with a standard tip that isn't intended to drag. They either expect you to hover above the plate magically with a tip better suited to mechanical torches, or deal with the back dross and accept poor results. The vents on drag tips minimize the back dross, and seem to help prevent the stalling of the tip due to the dross blowing back and making the tip jump.

No where near as pretty as CNC granted, but better than cheap tips not really intended for dragging.

1604970137400.png
 

Tom Kitta

Ultra Member
I have a plasma cutter and I am even closer then stone throw away. You don't need a lot of amps for 1/4" - my cheap Chinese unit struggles with 1/2" which it claims it should handle but stuff such as 1/4" or say 1/8" goes on smoothly. Of course not clean at all and slag etc. but works.

My main issue with plasma cutting is its susceptibility to water. You better make sure its dry or strange things happen.
 

Janger

(John)
Administrator
Vendor
You probably know this already John, and I agree that speed is the toughest thing to control manually. But do you notice any improvement with proper drag tips? I found I get a much more consistent cut with a vented drag tip, at least on the Hypertherm. A lot of plasma cutters ship with a standard tip that isn't intended to drag. They either expect you to hover above the plate magically with a tip better suited to mechanical torches, or deal with the back dross and accept poor results. The vents on drag tips minimize the back dross, and seem to help prevent the stalling of the tip due to the dross blowing back and making the tip jump.

No where near as pretty as CNC granted, but better than cheap tips not really intended for dragging.

View attachment 11601

No I didn't know about that. I'm going to have to look into those tips further. Thanks Pete!
 

CalgaryPT

Ultra Member
Vendor
Premium Member
No I didn't know about that. I'm going to have to look into those tips further. Thanks Pete!
Sorry, should have taken pic with them side by side. Machine torch on left, drag tip on right. Oddly enough, a lot of plasma cutters come out of box with a variation of the one on the left. They are totally inappropriate for dragging and are meant to hover above the plate.

And to make matters worse, some bargin plasma torches are not even intended to drag—thus you may not be able to get drag tips for them. No way am I steady enough to hover at the same distance above the plate. Heck, even when I had my CNC I swear my G code shook when I wrote it :p

1604980467328.png
 
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