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W460 bumper Design
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Posted 5/31/2016 3:23 PM
langoff-road
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Date registered: May 2016
Location: Birmingham Alabama
Vehicle(s): 1986 300GD 5MT
Posts: 19

W460 bumper Design

Hello. I figure I would post up a current project I have been working on for the past two months.
I'm designing a bumper for our w460 300gd that we imported from the Netherlands. Turns out we couldn't score the antec grill guard that came with it so we are fabricating our own. The original design is based on a free 3d model I found on the web to use as a base point until the truck made it here.
Since then I have been reworking the design to fit. I'm incorporating a class v hitch which is way overkill but I'm having fun doing it.
In my previous life I designed vehicle interiors and body parts for a specialty vehicle manufacture located in Alabama and also did some armor vehicle design. I'm now working for a large tire manufacturer that has enabled me to hone my skills as a designer and provided me with the actual time to develop this bumper.
I have really been interested in what bumpers and brush guards are available and I cover some examples on my blog on my website www.langoffroad.com
Would like some feedback from you guys who may have input or suggestions.





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#232541
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Posted 6/2/2016 9:28 AM
MudMonkey
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Date registered: Jun 2013
Location: CO
Vehicle(s): '03 G500
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Re: W460 bumper Design

I love the quality of your drawings, very nice!

I think the G is too square for the curves on your design. I think the factory Antec design is appropriate with straight lines, and rugged appearance. I say make it less curvy.

It looks very functional! Nice work.
#232582 - in reply to #232541
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Posted 6/2/2016 10:20 AM
Gilamonster
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Date registered: Sep 2013
Location: New Mexico
Vehicle(s): G #1 (mix of a 460, 461 & 463), #2 is a 2000 G500
Posts: 151
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Re: W460 bumper Design

Jeez. I wish I had your graphics design skills... First class work.

My only thought worth sharing is in regards to the way the outer brush guard tubes curve back and end up very close to the G. With such close proximity to the body it wouldn't take much of a hit to push it into the body ($$$$).

The factory design seems to have the same problem - they are relatively light and seem to be very effective at transferring and exacerbating damages to the body. I've seen a couple relatively light factory brush guard impacts in person and it seemed like the damage would have been much more localized had the guard not been there.

Regardless, I'm looking forward to seeing what you produce.
#232584 - in reply to #232541
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Posted 6/2/2016 10:59 AM
DUTCH
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Date registered: Apr 2006
Location: US, GA, Atlanta
Vehicle(s): 2015 Audi Q7 3.0 TDI,2018 Sprinter
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Re: W460 bumper Design

Gilamonster - 6/2/2016 10:20 AM


The factory design seems to have the same problem - they are relatively light and seem to be very effective at transferring and exacerbating damages to the body. I've seen a couple relatively light factory brush guard impacts in person and it seemed like the damage would have been much more localized had the guard not been there.


The factory brush guard on my 2000 G500 gave significant protection when I broadsided a tourist who ran a stop sign in Yellowstone a few years back. In addition to the damaged brush guard, the bumper, grill and left front bumper had to eventually be replaced when I got home; but I was able to drive back to Atlanta by simply bending the fender out and away from the front tire.

If that brush guard had not absorbed some of the impact, the radiator and the hood would have been destroyed, too; and, if that had happened, at the very least a radiator replacement would have been required in order to drive the G back to Atlanta.

Bottom line is that the brush guard is not terribly heavy duty, but it does provide some protection.
#232586 - in reply to #232584
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Posted 6/2/2016 11:17 AM
langoff-road
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Date registered: May 2016
Location: Birmingham Alabama
Vehicle(s): 1986 300GD 5MT
Posts: 19

Re: W460 bumper Design

Thank you guys for your feedback. I will be looking at the end tubing design. The current design will need either a cnc mandrel bender or a wicked talented tube bender but I'm looking at changing that soon both for aesthetics and being able to make the part. Your input is greatly appreciated.

Concerning the stock brush guard. I cover that a lot on my blog. The antec brush guard (oem supplier for the G, please correct me if I'm wrong here) was specifically designed for instances where pedestrian safety is of great concern and law. You get into some ethical debate here but you sacrifice rigidity here which means more energy is transferred to the body of the vehicle, the bars are designed to give away if a person's body hits it. It's a trade off but I still think they are great. I really like them, it's just to buy one and install it would be very expensive, not saying it's not worth it, it's just more economical for me to design and build one. Euro truck importers sell them. Also didn't like having to drill the bumper but any who.
#232587 - in reply to #232541
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Posted 6/2/2016 1:24 PM
Boy G
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Date registered: Feb 2007
Location: Bushveld, South Africa
Vehicle(s): Diesel G's: 617A and 602
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Re: W460 bumper Design

Interesting post. Thanks.
#232588 - in reply to #232541
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Posted 6/2/2016 1:43 PM
DUTCH
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Date registered: Apr 2006
Location: US, GA, Atlanta
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Re: W460 bumper Design

Antec is the OEM supplier for the brush guard; but I very much doubt if there was much design consideration for pedestrian safety back in the W460 and early W463 days.
#232589 - in reply to #232587
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Posted 6/5/2016 12:30 PM
burqueDOKA
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Date registered: Jul 2006
Location: Albuquerque, NM
Vehicle(s): 1550L37Doka, 404 ROCKMOG, '00 G500
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Re: W460 bumper Design

I like your design very much!
We need someone to design a rear bumper that incorporates a driver side swing out tire carrier that will swing 180 degrees allowing the rear cargo door to open to its full 180 degree potential.

#232620 - in reply to #232541
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Posted 6/6/2016 9:13 AM
langoff-road
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Date registered: May 2016
Location: Birmingham Alabama
Vehicle(s): 1986 300GD 5MT
Posts: 19

Re: W460 bumper Design

BurqueDOKA, we will be looking at that in the coming months. Is the rear door able to open 180 degrees? Might have to make a double jointed setup for that, sounds like a challenge
We are also going to be looking at small side steps as the new tires and wheels are now on Gertrude.
Running BFG All Terrain KO2s @ 235/85/r16. Load range E tires. They ride amazing and are really quiet.



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#232633 - in reply to #232620
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Posted 6/6/2016 2:24 PM
burqueDOKA
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Date registered: Jul 2006
Location: Albuquerque, NM
Vehicle(s): 1550L37Doka, 404 ROCKMOG, '00 G500
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Re: W460 bumper Design

langoff-road - 6/6/2016 7:13 AM

BurqueDOKA, we will be looking at that in the coming months. Is the rear door able to open 180 degrees? Might have to make a double jointed setup for that, sounds like a challenge
We are also going to be looking at small side steps as the new tires and wheels are now on Gertrude.
Running BFG All Terrain KO2s @ 235/85/r16. Load range E tires. They ride amazing and are really quiet.


Yes, the rear door will open 180 degrees and stop without hitting anything, that is when you have the spare out of the way and the door stop disconnected. I have made the commitment to keeping the spare off my door in order to allow my door to open all the way because of my full width drawers in my cargo area. The trick now is to have a spare tire carrier that will hinge the spare out of the way when open, yet still locate the spare in its stock position when closed so as not to interfere with the ladder.
#232647 - in reply to #232633
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Posted 6/7/2016 7:18 AM
Inkblotz
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Date registered: Apr 2006
Location: Georgia
Vehicle(s): 90 300GD "Thundering Turtle II", w/ 603A turbo
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Re: W460 bumper Design

Personally I like the design and the way you uncovered the MB emblem. My only though would be to Flatten the outer curve a bit outside the light areas to follow the line of the light housings.

Nice job.

Mark
#232669 - in reply to #232541
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Posted 6/7/2016 11:14 AM
langoff-road
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Date registered: May 2016
Location: Birmingham Alabama
Vehicle(s): 1986 300GD 5MT
Posts: 19

Re: W460 bumper Design

I really appreciate all of your input and critique and constructive criticism
I just got off the phone with my friend who is the fabricator (he was the head of fabrication for when we did armored vehicles) and I have some final dimensions of the tube bender.
We don't have the access to the tools we used to but we are making do with what we have.

I redesigned the end tubes last night which naturally changed some things and now they will be changing again since my bend radius was off by an inch haha. The ends will be more squared off next iteration but since we don't have access to a cnc mandrel bender we are limited as to what we can achieve so they will still have a round shape, just a elongated round as we have one bending die... we are happy just to have at least one though.

In addition to the tube ends, I'm also trying to incorporate the stock Mercedes bumper end caps for a more finished look. Since our G doesn't have fender flares it's going to be interesting as it all has to be measured by hand. I miss Mercedes factory math data so so much as I could design something around factory data and it usually fit perfectly.

I'd love to send laser cut files this week but I'm going to wait until the fabricator has some time to eye the file over. Happy fabricator... happy everyone.

Edited by langoff-road 6/7/2016 11:16 AM
#232675 - in reply to #232541
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Posted 6/7/2016 5:08 PM
Boy G
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Date registered: Feb 2007
Location: Bushveld, South Africa
Vehicle(s): Diesel G's: 617A and 602
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Re: W460 bumper Design

Have a look at using weld-on bends as they can give you a much tighter radius than mandrel bends.
#232690 - in reply to #232541
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Posted 6/9/2016 11:10 AM
langoff-road
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Date registered: May 2016
Location: Birmingham Alabama
Vehicle(s): 1986 300GD 5MT
Posts: 19

RE: W460 bumper Design

After fighting with trying to figure out how these bends were going to not work with a 8" bend radius I might have found a solution. I stumbled upon an off-road Jeep shop in Minnesota that will do custom bends fairly economically. I went ahead and did some sleuthing regarding there bender and found that you can get a 1.75" die with 5" cl bend radius and got to work. The shop just got back with me and it turns out it's a 6" radius but it's cnc controlled.

I got to work last night and took your suggestions regarding the end tubes. I agree that the completely rounded ends didn't fit with the boxy design of the G. This to me is the most difficult area as there are design constraints regarding machinery and how it can be done but making it look and function with the style and character of the vehicle. I've decided to try and mimic the look of the headlight surrounds of the older G as its a really cool design element that really stands out on this version of the G. Also re did the headlight guards to match it as well.



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#232714 - in reply to #232541
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Posted 6/9/2016 2:13 PM
MudMonkey
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Date registered: Jun 2013
Location: CO
Vehicle(s): '03 G500
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Re: W460 bumper Design

Now that is cool. Although I might prefer a straight center bar. I know it's a Mercedes. Very cool design overall!
#232716 - in reply to #232541
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Posted 6/10/2016 7:56 AM
Inkblotz
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Re: W460 bumper Design

very nice.
#232734 - in reply to #232541
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Posted 6/10/2016 7:02 PM
bram_r
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Date registered: Apr 2007
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Vehicle(s): 1984 MB 280GE, 1982 MB 300GD, 1986 Subaru XT 4WD
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Re: W460 bumper Design

MudMonkey - 6/9/2016 8:13 PM

Now that is cool. Although I might prefer a straight center bar. I know it's a Mercedes. Very cool design overall!


Agreed!

Nice design work btw.
Don't overdesign it or make it overdone rugged, make it suit the 460 with regards to lines and appereance.

gr. bram
#232737 - in reply to #232716
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Posted 10/5/2016 7:31 AM
langoff-road
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Date registered: May 2016
Location: Birmingham Alabama
Vehicle(s): 1986 300GD 5MT
Posts: 19

RE: W460 bumper Design

Figured I would bump an old thread.
Getting married in a month and well, this project had to take a bit of a back seat to that. Still plugging and chugging on the design. Hoping to get files sent to laser cutter in Dec or January. Will need to purchase a welder and get to learning. Should be fun. Any ways here's an update shot.
It's showing two logo plates as I haven't gotten the time to reconfigure the data plate on the drivers side. Need to find a place that can make these as i would like them to look similar to either an old range Rover badge or a data plate from an old machine.



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#234053 - in reply to #232541
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Posted 10/5/2016 8:11 AM
DUTCH
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Date registered: Apr 2006
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Vehicle(s): 2015 Audi Q7 3.0 TDI,2018 Sprinter
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RE: W460 bumper Design

langoff-road - 10/5/2016 7:31 AM

Figured I would bump an old thread.
Getting married in a month and well, this project had to take a bit of a back seat to that. Still plugging and chugging on the design. Hoping to get files sent to laser cutter in Dec or January. Will need to purchase a welder and get to learning. Should be fun. Any ways here's an update shot.


Waaaaaaaaaaaay too busy for a simple classic design like the W460. Looks like something that should be on a rice rocket.
#234054 - in reply to #234053
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Posted 10/5/2016 9:54 AM
brabus g36
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Date registered: Jun 2006
Location: Canada
Vehicle(s): 89 230GE cabrio, 88 280GE LWB, 87 300GD pickup
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RE: W460 bumper Design

langoff-road - 10/5/2016 7:31 AM

Figured I would bump an old thread.
Getting married in a month and well, this project had to take a bit of a back seat to that. Still plugging and chugging on the design. Hoping to get files sent to laser cutter in Dec or January. Will need to purchase a welder and get to learning. Should be fun. Any ways here's an update shot.
It's showing two logo plates as I haven't gotten the time to reconfigure the data plate on the drivers side. Need to find a place that can make these as i would like them to look similar to either an old range Rover badge or a data plate from an old machine.


instead of making a new bumper, modify your bumper with those 'accessories' like the canadian army type bumper. if you do this I will be the first on your list to buy those 'accessories'. And to make it more like the canadian army add the canadian army push bar. If you need a model I have one in my office.
#234056 - in reply to #234053
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