Re: Mack M75SX
 

Hey Lynn, I've had good luck with this program opening .dwg files. Case in point you have to have it for the Western Star body builder download's (zipped).
Yer welcome, Neil#2 aka doodlebug

Re: Mack M75SX
 

Coming along very nicely ..Im pretty amazed at how fast you build these things steve..and with all the other work you have lined up its good see your making time to do your own stuff.
Hey steve what are your plans for diffs for this brute?..Looking threw my spare parts box i came accross some tamiya Mammoth/juggernaut diffs that look very hefty..they are top drive and with a little mods i think you could make one with a rear output as well..

Re: Mack M75SX
 

Lou , I'm actually going to make my own drives using HPI savage internals . I got the spools and pinions and I just ordered my bearings . I got to the point ( finally ) to work on others parts to a certain time then I work on my stuff . I just need another lathe now :( I spend a lot of time resetting or I put my lathe work on hold till I get a break between set ups .

Re: Mack M75SX
 

Get more chucks for the lathe and a Aloris toolpost. Then you can switch out a chuck without disturbing a setup and leave a special tool in a holder.

Re: Mack M75SX
 

Sounds very interesting!
Got some pictures of the parts?

Kerst

Re: Mack M75SX
 

Kerst , I'm Making mostly Wheels right now and air cleaners and fuel tanks . I have pics in IHB in the vender section .

Steve , I have a tool post not the aloris brand I begged for that a long time ago when I was in my dads shop . as for chucks I would have a bunch but , I can't get the right thread for the adapter plate . I need to get 1 made for my 3 jaw

I was just ready to make my back hangers for the front springs , I need another .25 " end mill :mad: I don't think I'm getting HSS any more :( Well I did get some more done :) front springs and center webbing for the rear . I'm hopping to start on axle housing this coming wknd ,wife has plans on sat :(

http://i830.photobucket.com/albums/z...r/PIC_0978.jpg

http://i830.photobucket.com/albums/z...r/PIC_0974.jpg

OH Scott , I put the trans in last night :p I put the gears I had from travis' ( bigger bull gear and smaller pinions ) motors run great :)

IHSteve

Re: Mack M75SX
 

No I did not stop :p I got some nice end mills yesterday and spent last night and tonight making the front axle and rear spring hangers for the front .
I also got some aluminum flux for welding aluminum with the torch and it works real well . So looks like I'll be making the cab in aluminum ;) works just like brazing
I hope you can see these :confused:

spring hanger

http://i830.photobucket.com/albums/z...r/PIC_0985.jpg

the axle

http://i830.photobucket.com/albums/z...r/PIC_0984.jpg

http://i830.photobucket.com/albums/z...r/PIC_0982.jpg

http://i830.photobucket.com/albums/z...r/PIC_0987.jpg

thanks for looking
Steve

Re: Mack M75SX
 

Re: Mack M75SX
 

That trans should motivate it well. That is one beefy machine!:eek:

Re: Mack M75SX
 

Boy you learn fast! Great looking work! I stopped getting HS tooling quite awhile ago. Carbide is more expensive but lasts much longer, so it's a fair trade off. My shop time has dropped to about 0 after knee surgery. And to top it all off, I think my Sherline mill is in need of new gibs. Really not bad after 20+ years of use and a new bed.

Lynn

Re: Mack M75SX
 

OK, you will say I'm a "rivets counter", but the M75 had a tubular front axle ! So I propose you to send this one to me (will fit perfectly for the LRVSW) and make a new one with the correct design :D:D:D

Re: Mack M75SX
 

I know ,Papy :p I sometimes throw my own twist to things :rolleyes: the body is off a lil to :confused: I think I got the rear taper to long . I was going to do the tubular axle but I just felt like milling an I beam front . I may do another but as a tractor but thats a lil while yet . I think I got enough going for now :eek:

IHSteve

Re: Mack M75SX
 

With hubs drying waiting to be put together to finnish this order finally :eek: I stole some time on the lathe :D and turned out 1 rear housing :)

http://i830.photobucket.com/albums/z...r/PIC_1024.jpg

http://i830.photobucket.com/albums/z...r/PIC_1019.jpg

http://i830.photobucket.com/albums/z...r/PIC_1016.jpg

and dabbled a little bit here and there on some of the cab

http://i830.photobucket.com/albums/z...r/PIC_1018.jpg

http://i830.photobucket.com/albums/z...r/PIC_1020.jpg

thanks for looking
IHSteve

Re: Mack M75SX
 

Looking Really good steve..Making good progress..Those diffs are looking like they will be bullit proof.

Re: Mack M75SX
 

nice work that mack is gonna be huge when it is all done

Re: Mack M75SX
 

I like the way you made the axles! very nice work!

Kerst

Re: Mack M75SX
 

Steve. Great gob on the axle. How do you plan to hold the joint together, setscrews or bolts. She's going to be heavy duty, that's for sure
Rob

Re: Mack M75SX
 

thanks guys ;)

Rob , I'll be using 3mm bolts which I still have to mill bolt areas on the flang once they're bolted together then chuck them back up perpendicular and bore for the pinions that'll be a fun setup :eek:

Steve

Re: Mack M75SX
 

Awesome work, Steve. I am looking forward to seeing the updates, as they come, which is usually what I reply to all of your posts! You have a lot great project builds going at once. I can't believe you get as much done as you do. If I even tried to do what you do, it would take me a lifetime, probably.

Re: Mack M75SX
 

I don't know Nate :confused: , the new/old cnc mill has me occupied right now to get it going . Oh :o thank you ;)

Re: Mack M75SX
 

Nice work as always Steve.....keep the pics comming!

Re: Mack M75SX
 

Steve. Looking forward to pictures of that setup.
Rob

Re: Mack M75SX
 

This truck is really looking really good. I understand you are running twin motors with different-from-stock pinions and driven gear going into the transmission? Would appreciate some detail on what gears you are running and did you have to build the two-motor bracket.

Thanks!

Ken

Re: Mack M75SX
 

Ken It's an E-max tranny they come with 2 motor set up . The best guy to tell you about what I have would be Travis . I'm kinda trusting his jugement on the motor trans setup . If it works and has what I need for the pan , I'll be putting these in them too . I like the 2 speed idea . :)


thanks Troy ;)
Rob the set up will take longer to true it up then to cut . If I get the CNC mill working , it'll be easier on that then the lathe , I'm thinking . If not then in the 4 jaw .

Steve

Re: Mack M75SX
 

Just awesome work on this Steve. Looking great!!

What specific flux are you using on the alum?...was thinking about giving this a try...but not a welder. How hot we talking...do I need real tanks and torch or something that could be done lower heat like w/ little coleman propane torch?

Joe

Re: Mack M75SX
 

thanks Joe B. , On the thin sheet a little propane will work but .125 and up gota use some heat . I got alumna flux at the hardware store made by forney and thought I give it a shot . you just got to watch the heat on the sheet , you'll warp it just like steal . It's hard for me to explain how , since I do it by feel :o . I only messed with it on some scrap , so we'll see how I do on the truck :confused:

Steve

Re: Mack M75SX
 

The Emaxx tranny is a beautiful thing. I use them for most of my trucks. Are you gonna keep the 2 speed or make it a single speed? There used to be a conversion kit that almost cut it in half and basically locked it in 1 gear. I think you can still get an aluminum tranny case for it as well. Make sure you don't over tighten the tranny mounting screws, they strip out easily.

Re: Mack M75SX
 

really starting to look like a dump truck now. its coming together great

Re: Mack M75SX
 

thanks guys :)

mazda , I'm staying with the 2 speed

I did a little bit today :rolleyes: got the 2nd axle made up and started on the pinion shaft openings .

http://i830.photobucket.com/albums/z...r/PIC_1031.jpg

http://i830.photobucket.com/albums/z...r/PIC_1032.jpg


and when you get a couple of big puppies together you might end up with a lil puppy :p :eek:

http://i830.photobucket.com/albums/z...r/PIC_1035.jpg

thanks for looking :)
IHSteve

Re: Mack M75SX
 

Cool! More Steve, more!!!!:D

Re: Mack M75SX
 

What kind of lathe do you use?

Kerst

Re: Mack M75SX
 

Kerst , A Hendey , older then my grandfather :eek: early 1900's WW1

thanks trucker :)

Re: Mack M75SX
 

nice work i am tryin to watch and learn lol Izzy taught me alot when he was at my old place

Re: Mack M75SX
 

Good progress Steve. That is cool that you are making the axles!

Re: Mack M75SX
 

Steve, Do you ever sleep??:rolleyes::rolleyes: Seems like you are always making something besides all of the wheels you make. Old big machines are not all that bad. Most are built heavier than the new stuff which means you can do more before they break!! Keep up all of the good work!

Re: Mack M75SX
 

Scott , Clyde , lynn , thanks :)


Lynn , I put most of that lil puppy together sunday night after east mini truck meet .I basically used the merc running gear I had . I do not have much to do with it yet just make the body dump . As for the lathe , how many lil lathes take .25" off of 6061 t6 in a path ? my dad got a lil 7x10 clarke and said thats all he needed and didn't have a dino taking up space in the shop now he has me doing his stuff :eek:

I got more done will post tonight :)

Re: Mack M75SX
 

The old machines are nice. i have a South Bend, which is "only" 70 years old. I love that lathe!

Kerst

Re: Mack M75SX
 

yes they are :)

well this is as far as I go today the lathe control needs to take a nap :(

input output bearing plates :) ready to shim and bolt :)

http://i830.photobucket.com/albums/z...r/PIC_1039.jpg

http://i830.photobucket.com/albums/z...r/PIC_1037.jpg

thanks for looking

Re: Mack M75SX
 

nice work slick job

Re: Mack M75SX
 

Steve I have no clue what it is I am looking at, but the mill work is awesome any how.

Great Job

P.S. I see a set of fenders in the back ground, I know someone that makes the proper mounts for them...:D