Author Topic: M2 rear bumpers and steps.  (Read 27746 times)

47lincsled

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Re: M2 rear bumpers and steps.
« Reply #15 on: April 29, 2014, 10:45:05 PM »
 I assume others will notice I misplace a decimal point on those measurements, they should be .205 thick and .20, or about 3/16th thick.

steve1973

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Re: M2 rear bumpers and steps.
« Reply #16 on: April 30, 2014, 07:20:09 PM »
Here is the drawing of the right rear bumperette. Reverse everything for the left. I will work on the triangle end and inner supports tomorrow. The bumperettes I have are reproduction and are 1/4" thick. I'm not sure what the originals were. Looking at the drawing again, top view should be bottom view. Will have photos to go with this tomorrow. I'm not sure what the two upper center holes are for as they are not in use.



Steve A.

steve1973

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Re: M2 rear bumpers and steps.
« Reply #17 on: May 01, 2014, 10:00:36 PM »
Today I tackled the side end cap triangle piece. First, here are some detailed photos of the bumper. First photo is up side down.



















The end cap was a complicated piece to measure out with bends on all sides and then integrated into the main bumper piece. The holes on the top are approximate as the front two are for the step plate and are not original. The back two holes are to mount to the underside of the rear corner track armor. With my gas tank and cover in the way I couldn't get to them to measure properly. So, when your assembly is done and mounted in place with the front mounting bolts then transfer punch or drill out the other two holes.



I will get to the main bumper piece and bracket next week.

Steve A.
« Last Edit: May 02, 2014, 06:48:31 AM by steve1973 »

bright87

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Re: M2 rear bumpers and steps.
« Reply #18 on: May 06, 2014, 07:11:42 PM »
Thanks for the great info guys!!
Does the short crossbrace mount on top of the idler toggle arm?
Michael

BombFarm

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Re: M2 rear bumpers and steps.
« Reply #19 on: May 06, 2014, 07:40:00 PM »
Yes, the small tab that is on one end is meant to rest on top of the arm.

47lincsled

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Re: M2 rear bumpers and steps.
« Reply #20 on: May 06, 2014, 07:56:04 PM »
 On my bumper braces the small tab on them is 3/8 round stock,looks like Steve's is too. I never got mine put back on because it's a lot harder to do once the bed is bolted on, you can't get straight on those bolts with an impact!

steve1973

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Re: M2 rear bumpers and steps.
« Reply #21 on: May 06, 2014, 10:29:49 PM »
Mine is actually a square piece of stock welded on the end. Here are some photos I had on file before I cleaned them up. I will get measurements and a drawing of this next week.





Steve A.

bright87

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Re: M2 rear bumpers and steps.
« Reply #22 on: May 06, 2014, 10:45:38 PM »
You know, now that i think about it, i have one of those in my parts box. But, instead of the tab being folded down, it has one elongated hole and sticks straight out!!!!
Mine is an early M2, is this correct?
Michael

bright87

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Re: M2 rear bumpers and steps.
« Reply #23 on: May 08, 2014, 06:56:54 AM »
Here are some of Gillards drawings I converted to pdf.
Found a couple of errors on the bumper body print and revised it.
« Last Edit: May 14, 2014, 11:58:23 AM by bright87 »

steve1973

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Re: M2 rear bumpers and steps.
« Reply #24 on: May 08, 2014, 01:33:54 PM »
Wow, That is awesome! How and what progreame did you use to convert those? Please PM me with info so I can start converting his files. It would also help me organize what all I have from him. Also, the main piece, middle drawing is 3/16" not 1/4" as stated in drawing. Also, the first drawing should be a simple "L". the last bend shouldn't be their. See my photos above. Again, Awesome work bright87! ;D

Steve A.

bright87

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Re: M2 rear bumpers and steps.
« Reply #25 on: May 08, 2014, 05:31:02 PM »
I used my autocad program, and added the dimensions to his drawings. On the "L" bracket the little tab is what is welded to the main bracket on assembly.
Michael
« Last Edit: May 08, 2014, 06:01:40 PM by bright87 »

steve1973

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Re: M2 rear bumpers and steps.
« Reply #26 on: May 08, 2014, 09:45:17 PM »
I see what you mean about the lip on the "J" bracket but my original looks mor like an "L" with a piece of flat stock welded to the main step piece for support. The part of my "L" bracket that rests on top of that piece even looks like it was notched out a little to make level. Here is a photo. I will get more tomorrow. I think either way will work. Also note, the main bumper piece is 3/16" not 1/4" as indicated on his CAD file. All other parts are 1/4" though. What CAD program are you using? Is it easy to use? I might be interested in getting a program to convert Bob's drawing like you did unless that is something you want to do. I'm in the process of sorting all his files into halftrack, scoutcar, M2HB side plates, M1919 side plates etc.



Thanks again for posting the drawings.

Steve A.

bright87

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Re: M2 rear bumpers and steps.
« Reply #27 on: May 08, 2014, 11:02:34 PM »
Steve-
I use Autocad2004, which is the full blown CAD program. Many sell it on ebay, and they come with books that take you thru some sample drawings.
There are some free versions you can download, such as Draftsight. I would not have time to convert all the drawings (800+), but if you see anything you need, I can do it for you.
If you are coming to Louisville next month, I can show you some things.
I will correct the metal thickness issue tomorrow and post a drawing for the taillight bracket.
Michael
« Last Edit: May 09, 2014, 06:00:07 AM by bright87 »

Monkeypirate

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Re: M2 rear bumpers and steps.
« Reply #28 on: May 10, 2014, 01:38:15 AM »
Autocad is an Awesome and powerful program but can take some time to learn. I have Alibre hobby and it is a decent program for simpler stuff and a lot cheaper. It took me about 3 days to learn it. built in tutorials make it simple.

bright87

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Re: M2 rear bumpers and steps.
« Reply #29 on: May 13, 2014, 05:03:53 AM »
I did not realize these steps were so massive, until I started building them!