Re: Mack M75SX
 

You have too much fun Steve!

Brian

Re: Mack M75SX
 

That's a nice 1 ton dually you have there, Steve. I like the direction your Mack is headed too. I have to echo what the others said. Keep the axles. They are really nice. I'd suggest you just find yourself one big and brawny gearmotor to use as the transmission. We could calculate a good ratio for you, based on tire size, motor selection, and the voltage you want to run. As long as we know the motor's RPM per volt, or Kv rating, and an idea of how fast you want this thing to go.

Re: Mack M75SX
 

I'll have bb's all over the floor unlees I glue the bead . As soon as I turn loaded I roll the 1 tire right of . they look like they have 20psi of air in a tire that should have 100psi of air I got another plan , expasion joint for concrete slabs .

isn't that the name of the game :D:p

thanks Nate , she's a work horse (bone stock) I got my speed issue taken care of . when I ran it the 1st time hauling 20 loads of coal it worked OK but I had a delay between fwd and rev . so I reprogramed the esc ( castle) to eliminate the delay . Also when I hooked it back up I desided to put the trotle on the throtle stick like evreyone else ( I know :rolleyes::o) not realizing you have to reset the radio with the esc when you change parameters on the esc :o . now the bone head that put the shims in wrong on the fwd rear also did so on the rear rear :rolleyes::o so I'm getting there :)

Re: Mack M75SX
 

couple weeks ago I tore the rears apart and re shimed them . I had to press a stel stop in the axle bore do to a change in direction since I machined the axle cassings :confused: I'm useing HPI savage ring and pinion assembly that has the shaft cups for the pin and ball shafts for independant suspension . well I machined the ID bore to keep them on :confused: not thinking the OD of the cups being close to the OD of the bearing :o . well I made my own axle shafts and eliminated the cups . So when I shimed up the diff and ran it a little the copper shims started working into the bore :confused::o Now she'll pull like H@!! :D you can't put enough on it to stop it :D . Tonight I took a little time and mounted the oil tank and pump whille my wife helped pack up some orders to go in the mail tomorrow ;) I also started on the cylinders a couple weeks ago . I did fix the front tire issue :) just added the foams from the distorted tires I have

http://i830.photobucket.com/albums/z...r/PIC_1669.jpg

http://i830.photobucket.com/albums/z...r/PIC_1668.jpg

http://i830.photobucket.com/albums/z...r/PIC_1670.jpg

thanks for lookin

Re: Mack M75SX
 

Steve, Just think, a week today there's going to be a bunch of people layed off at the North Pole. Might be cheap labour to help you catch up with your projects.
Rob

Re: Mack M75SX
 

It's not fun until you scratch your head, and find out there's silicone on your finger:eek::eek::p:mad::p:o:confused:
LOL, Cheer's, Neil.

Re: Mack M75SX
 

so , THAT'S where my help went :eek::confused::mad::p

Re: Mack M75SX
 

My word what a BEAST!! :eek: Not seen anything like it before in the scale world. Nice detail with the mack logo on the hubs.

Re: Mack M75SX
 

I dont think anyone could imagine this turning out any better than it did! Its a scale masterpiece!

Re: Mack M75SX
 

thanks , Nick , DSM :)

well I diverged from scale a little :( once again my attempt to a telescopic cylinder failed :( (for now ) So some quick engineering and design , I'm making up a different set up to get er going with what I have laying around . still milling the rest of the parts . Yesterday built my battery box and tidied up the wiring in the evening .

http://i830.photobucket.com/albums/z...r/PIC_1712.jpg

http://i830.photobucket.com/albums/z...r/PIC_1713.jpg

http://i830.photobucket.com/albums/z...r/PIC_1714.jpg

thaks for looking

Re: Mack M75SX
 

Love those wheels aasseblies, those spoket front wheels and rear covesr with loggo, wow, wow!!
Dan

Re: Mack M75SX
 

Or the pans be runniNice job Steve I think you have the trucks down to a science.....can't wait to see this Mack up and running so when are we gonna get to see the td40 b up and workin?

Re: Mack M75SX
 

thanks Dan

thanks , I get tied up running parts for the semi trucks any more or sometimes a small excavating job comes up . the plan is to get this running then in order ( could change) 990 loader , td40b , pan/s or 385cl cat with a mass boom .

I let the mill run all night and since all I had was a .125 em after my 4mm em took a dump :( , woke up with the rest of my parts done :) now to fit the cylinders I have laying around .

Re: Mack M75SX
 

Looking good Steve, cant wait to see this project take shape,and be dumping in March?:cool:

Re: Mack M75SX
 

Sorry I got that message messed up a lil dang phone

Re: Mack M75SX
 

no prob big T

thanks Tim :) I think it'll be dumping before march :D

Had everything together except the right cylinders :confused: the 1's I have are nose mount :( so while programing last night I had a brain storm :eek::eek::o:D and woke this morn to the mack dumping piles of stone in the shop :eek::eek: OK OK here's a vid :o the truck is a little jerky when steering with a load I'm thinking I need to put in an external bec .

http://www.youtube.com/watch?v=XPzRN...ature=youtu.be

Re: Mack M75SX
 

Works nice Steve! It sure has some speed behind it too!

Better make sure you tighten the lug nuts on that left rear wheel!:D:D:p

Re: Mack M75SX
 

:p the tire rolled off :(

Re: Mack M75SX
 

Evel Knievel at his finest. That truck looks like she'll jump for the Grand Canyon. Got the screw drive working good now steve, lots of power. That load of coal will just about fill the fire box of my big steamer. Your having too much fun!!!!!
Rob

Re: Mack M75SX
 

I see what you mean about trying to keep the tires beaded.

The Beast is performing with stellor power, looking forward to slobbering over it next wkend. :D

Are you using a FM or 2.4 radio?