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-   -   Mack M75SX (https://www.rctruckandconstruction.com/showthread.php?t=1557)

9W Monighan 03-27-2011 07:08 PM

Re: Mack M75SX
 
Hope everything lines up ok in there Steve. That's definitely a strong setup if the pinion holds up. Do you have a link to the gears you are using?

ihbuilder 03-27-2011 07:27 PM

Re: Mack M75SX
 
Steve , here's the pinion http://store.rc4wd.com/HPI-Racing-Be...1-_p_1377.html

the rest I got off ebay same as what I have in the pan only I made the axle housing for the truck . Here's a listing http://cgi.ebay.com/HPI-Savage-X-25-...item2eb3d51c69 Oh yes everything lines up :D thank gawd :eek: I didn't want to do it all over :eek: I still have to make the axle shafts . I may take the cups off the diffs and run the axle shaft right in . This what the cups look like http://cgi.ebay.com/HPI-86864-Differ...#ht_4874wt_872 they go into the spool and you slide a pin through the end then the bevel gear goes over top .

mike , your looking at the rear axle components . axle housing done on the lathe

thanks Clyde :)

td9clyde 03-27-2011 07:38 PM

Re: Mack M75SX
 
i really need to get a four jaw chuck ........but then again i gotta get my barn made into a shop first hope to be gettin it all done this summer

Heavy Metal 03-27-2011 08:43 PM

Re: Mack M75SX
 
Beautiful Steve.

Jared 03-28-2011 11:25 PM

Re: Mack M75SX
 
Looks good! I've been following along partly because I don't know much about Mack off-highway trucks and because it's so different.

I was curious how the tandem axles would be driven. Not trying to be nit-picky, but is this the way the axles will be oriented when they go in the truck? If I'm looking at them the way I think I am they may wind up with one spinning forward and the other backwards unless one is flipped upside down. The front axle ring gear will reverse the rotation of the jackshaft. You may already have that taken into account but I would hate to see it happen. Years ago, a couple guys from my area built a monster truck from surplus army truck parts and when they were ready to take it for a drive the axles turned opposite! I'm not sure if they ever got it driveable.
Quote:

Originally Posted by ihbuilder (Post 23459)


ihbuilder 03-29-2011 07:16 AM

Re: Mack M75SX
 
Thanks Guys :)

Jared , yes , when put together the rear rear will be flipped . I guess I could have went into more detail and made a power divider like the real trucks .

IHSteve

tc1cat 03-29-2011 08:21 AM

Re: Mack M75SX
 
WOW!!! your workmanship just seems to be never ending. :):) Can't wait to see it under power.

rc_farmer 03-29-2011 09:38 AM

Re: Mack M75SX
 
Steve, you gonna have to give a shop class one day with all this great stuff you come up with....what's that thing they say about neccessity being a "mother"

keep up the good work!

ihbuilder 03-30-2011 10:39 PM

Re: Mack M75SX
 
I can't wait to either , Lynn I'm tired of man handling coal :confused:



Rob , I do not think you want to take my shop class :eek::p OSHA would prohibit it :eek: plus you'll have to wash your ears afterwards a lot of this is the main music in the shop some days , ###&&($%@!)##%%@

OH , " neccessity is the mother of invention " is on my shop door :p

just looked at another lathe today :confused: I wasn't going to :rolleyes: but curiosity never really killed the cat , the handle fit perfectly :D now the fun part trying to get it :(

ihbuilder 04-04-2011 09:46 PM

Re: Mack M75SX
 
I did a little yesterday mounted the front axle made some hinges for the body :confused: may mill an authentic looking assembly :confused: and I've been dragging my feet on making the rear hangers in hopes of using the big mill :( but got tiered of waiting :confused:

http://i830.photobucket.com/albums/z...r/PIC_1078.jpg

http://i830.photobucket.com/albums/z...r/PIC_1077.jpg

http://i830.photobucket.com/albums/z...r/PIC_1075.jpg

thats the back side of the hanger still got hrs to go on just that 1 :eek: will the tiag hold up :eek::rolleyes:

ihbuilder 04-16-2011 10:32 PM

Re: Mack M75SX
 
An excavating job came up :eek: All t&m :eek: and the customer keeps adding on :eek: so I'm not getting much time in the shop :(:mad: but did manage to glue some styrene together in the evening after getting home @ 6:30 as the alum was not welding well :( ( to much warping :( ) but this came out well :)

http://i830.photobucket.com/albums/z...r/PIC_1090.jpg

http://i830.photobucket.com/albums/z...r/PIC_1091.jpg


IHSteve

Stylin n profilin 04-16-2011 10:39 PM

Re: Mack M75SX
 
SAAAAAWWWEEETTT there Stevie boy....Thats some nice styrene work boss:D:D:eek:

RAIDERS 04-16-2011 11:23 PM

Re: Mack M75SX
 
looks great steve...

steamer 04-16-2011 11:33 PM

Re: Mack M75SX
 
Steve That styrene is great stuff. Only thing you have to watch out for when your going for a cool one is witch bottle you grab!!! Nice Work.
Rob

ihbuilder 04-16-2011 11:47 PM

Re: Mack M75SX
 
Quote:

Originally Posted by steamer (Post 25349)
Steve That styrene is great stuff. Only thing you have to watch out for when your going for a cool one is witch bottle you grab!!! Nice Work.
Rob

OH OH thats why it's empty :p:p:eek:

thanks guys :)

tc1cat 04-17-2011 12:11 AM

Re: Mack M75SX
 
Looking good there, Steve. You'll have it finished in no time:rolleyes::rolleyes:

Snochaser 04-17-2011 09:12 AM

Re: Mack M75SX
 
Looks great Steve! I hadn't seen what you plan on using for the dumping mechanism. What do you have up your sleeve for that? I'm sure it'll be slick as snot.

Ben

ihbuilder 04-17-2011 10:20 AM

Re: Mack M75SX
 
stock hydros ;) 2 - 4 stage cylinders . I still got a lot of shop time on this :(

SmallHaul 04-17-2011 11:05 AM

Re: Mack M75SX
 
Shaping up nice Steve!

td9clyde 04-17-2011 12:37 PM

Re: Mack M75SX
 
looking great i am likein that truck

Dreamweaver 04-17-2011 01:17 PM

Re: Mack M75SX
 
It's looking good Steve. What size Styrene are you using?

ihbuilder 04-17-2011 08:05 PM

Re: Mack M75SX
 
Quote:

Originally Posted by SmallHaul (Post 25396)
Shaping up nice Steve!

Quote:

Originally Posted by td9clyde (Post 25401)
looking great i am likein that truck

Quote:

Originally Posted by Dreamweaver (Post 25404)
It's looking good Steve. What size Styrene are you using?

thanks guys :) @ Mike I'm using .100

A few more Pics with the sunset :(

http://i830.photobucket.com/albums/z...r/PIC_1105.jpg

http://i830.photobucket.com/albums/z...r/PIC_1104.jpg


OH Rob the green bottle is the empty 1 :P

steamer 04-18-2011 12:11 AM

Re: Mack M75SX
 
That's the first thing I checked. Well done!!!!
Rob

tc1cat 04-18-2011 05:13 PM

Re: Mack M75SX
 
Looking better all of the time:D:D

ihbuilder 08-08-2011 12:19 AM

Re: Mack M75SX
 
I'll be up awhile :rolleyes: I waited a long time to do this :D milling out new frame rails for this beast :D not the best vid :confused::o

http://www.youtube.com/watch?v=XLyOWczx1DQ

td9clyde 08-08-2011 09:25 AM

Re: Mack M75SX
 
Nice work on the cab looks good can't wait to see this one haulin

ihbuilder 08-08-2011 10:49 AM

Re: Mack M75SX
 
me too Henry :D gota get it ready for winter for loading the coal hopper ;)

well my butt is draggin today :eek: finished up about 4 AM 8 hrs of cutting :eek: but then I kept my feed down I hate breaking EM's mid way through :mad: I tried to flip it over and do the inside this morning but the stock is a lil out of square + being tired I was running the wrong program :o :rolleyes: oh well enough B.S. pics

http://i830.photobucket.com/albums/z...r/PIC_1338.jpg

http://i830.photobucket.com/albums/z...r/PIC_1339.jpg

http://i830.photobucket.com/albums/z...r/PIC_1340.jpg

back to work ;)

steamer 08-08-2011 11:27 AM

Re: Mack M75SX
 
Steve. You knocked that one, right out of the park, and there must have been quite a pile of chips on the floor. The frame on this truck looks like it will be rock solid and heavy duty. :D
Rob

ihbuilder 08-08-2011 10:54 PM

Re: Mack M75SX
 
thanks Rob :) I got the back milled out just off the mill 30 min ago :eek: ( I'm gona get some sleep :D ) everything went well till the drill cycle :( for some azz reason my holes are out .125" :( I should have waited and bored the 2 together manually :confused:

http://i830.photobucket.com/albums/z...r/PIC_1345.jpg

the "I" profile

http://i830.photobucket.com/albums/z...r/PIC_1344.jpg


looks like the verizon strike is effecting my I-net :mad:

sneaky-pete 08-08-2011 11:00 PM

Re: Mack M75SX
 
Nice work Steve....your skills amaze me.

9W Monighan 08-08-2011 11:10 PM

Re: Mack M75SX
 
Quote:

Originally Posted by ihbuilder (Post 33278)
thanks Rob :) I got the back milled out just off the mill 30 min ago :eek: ( I'm gona get some sleep :D ) everything went well till the drill cycle :( for some azz reason my holes are out .125" :( I should have waited and bored the 2 together manually :confused:


looks like the verizon strike is effecting my I-net :mad:

Hmm, Did you forget to take .100'' off from the edgefinder?

Any pictures of your set up on the machine?

ihbuilder 08-08-2011 11:22 PM

Re: Mack M75SX
 
Quote:

Originally Posted by 9W Monighan (Post 33282)
Hmm, Did you forget to take .100'' off from the edgefinder?

Any pictures of your set up on the machine?

yes I remembered that other wise the backside pocketing would be off . It may be that when using the cam I clicked on the circle edge and not center :confused: I'm not sure you can see it in this vid http://www.youtube.com/watch?v=XLyOWczx1DQ
if not I'll take a pic when I do the other side or a trailer frame I'm going to set up . It's basically a fence that I can bolt the stock to .This trailer frame set might take a few days + igot to get more plate for the othe side :(

9W Monighan 08-09-2011 07:56 AM

Re: Mack M75SX
 
Quote:

Originally Posted by ihbuilder (Post 33283)
It may be that when using the cam I clicked on the circle edge and not center :confused:

For drilling, I draw points to generate the code .

tc1cat 08-09-2011 07:57 AM

Re: Mack M75SX
 
Looking good!! And everyone thinks that running a CNC mill or lathe is just push the go button and everything comes out OK :rolleyes::rolleyes: Slowing down the feedrate is not that bad of a thing to do. Recommended feeds and speeds are not all what they are cracked up to be!!!

ihbuilder 08-09-2011 10:48 AM

Re: Mack M75SX
 
Quote:

Originally Posted by 9W Monighan (Post 33288)
For drilling, I draw points to generate the code .

yea I just looked it over clicked the circle not the point :o:mad:

Quote:

Originally Posted by tc1cat (Post 33289)
Looking good!! And everyone thinks that running a CNC mill or lathe is just push the go button and everything comes out OK :rolleyes::rolleyes: Slowing down the feedrate is not that bad of a thing to do. Recommended feeds and speeds are not all what they are cracked up to be!!!

thanks Lynn , tell me about it :rolleyes:I tried to tell my wife that :eek: now she gets it :p , I just never spent so much time at the puter then the machine :eek: I cut the recomended feed down by 30% seems to work well I just worked up the next op for those trailer frames with the other frame in it 12 hrs :eek: I'm thinking I need to find a water jet guy for the basic profiles :confused:

ihbuilder 08-09-2011 09:08 PM

Re: Mack M75SX
 
"Any pictures of your set up on the machine?"

Steve , as I promised :) also this time I decided to use a bigger EM and crank the feed up also the spindle much better time

http://i830.photobucket.com/albums/z...r/PIC_1346.jpg

http://i830.photobucket.com/albums/z...r/PIC_1349.jpg

http://i830.photobucket.com/albums/z...r/PIC_1351.jpg

more tomorrow :)

ihbuilder 08-11-2011 09:59 PM

Re: Mack M75SX
 
well the 2nd frame fell out of the plate this morning about 3 am :eek:

http://i830.photobucket.com/albums/z...r/PIC_1356.jpg

ihbuilder 08-12-2011 08:09 PM

Re: Mack M75SX
 
walking beams ;)

http://i830.photobucket.com/albums/z...r/PIC_1366.jpg

http://i830.photobucket.com/albums/z...r/PIC_1361.jpg

now these get chucked up in the lathe to turn the ends where the arch stops . there's a pic of it I just got to figure how to get it on here :confused:

thanks for looking :)

doodlebug 08-12-2011 11:59 PM

Re: Mack M75SX
 
Hey Steve, are you going to chuck the walking beam's in your 4 jaw chuck? or use a dead center and lathe dog? Center drilling for the tail stock(live center) look's like fun.
Later, Neil#2 aka doodlebug.

ihbuilder 08-13-2011 09:47 AM

Re: Mack M75SX
 
Neil , yep alredy done ;) did them last night while I had the mill working on a jig plate for wheels :D . the old hendy need soom work , the handle where getting rusty :eek:

http://i830.photobucket.com/albums/z...r/PIC_1370.jpg


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