Better have a replacement 4rotor and trans 🤣

Slavia?

Woah that's how CNCing!!

Best wishes from Barbados!!!!

soh cah toa

A Zeus book would have saved you a load of headache on that PCD

I just got the alert for u posting this video witch when I’m writing this it’s 6 days after u posted

Why not use press for that? You could manufacture mold on CNC and than use it to cut shims from stock on hydraulic press in few seconds. Anyway nicely done, as 'good enough is perfect'.

Water jet would’ve been a million times easier

Dude. I'm tempted to give you my email so I can send you some Gcode for your mill.

Neat job on the mill.👍🧐

shims for anyone who wants them

Hahaha! You said hand job.

I know that you're use to working in inches (imperial). I mostly work in millimetres and would even tend to convert from inches to mm if it came up. But as it is a BMW diff and the sizes are probably metric, It may have simplified the job for you if you just pitched the holes out in mm? :)

Watch that gcode scroll by as the machine is running for long enough and you'll be able to read and write it just like another language.

STOP TEACHING ME MATH!!

Why dont you use cutting oil while working with the bridgeport

Rob I use manual and CNC machines of all kinds every single day. I can say I didnt not cringe that hard at all watching this video so take that as a pat on the back for sure. It only gets easier with experience and learning from mistakes. Great job.

11:52 if you can buy, HSS tools instead of carbide they are cheaper when you crash😂👍 "single step" or single block here on the first run and read the code BEFORE you run it.

to bad you fast forwarded the explanation on the math

Next week Rob and the chipmunks learn trig.

lost it when you counted to 10

You should get the DRO fixed, there’s a feature in it that will allow you to do all that math without actually having to do that math so you can make flanges and, in this case, shins without having to deal with a bunch of additional resources. Should just be able to plug in the diameter of the circle the holes are on (from the centerline of the holes) and the number of them and it’ll display the coordinates for each hole.

That is great!

Oof Rob you've got a new side hussle for the USA for BMW custom parts, I love how you show the process its so informative, not that im going to go out and buy a CNC machine but all knowledge is good knowledge :)

thats dope

Be carefull with your cnc it's very eazy to brake 👌

If the end mill has HSS on it you’re fine. Stands for high speed steel

Yo shims.. um turner motorsport.com bavauto.com both places in New England🦾🦾🦿🦾🛸👽🛸🦿🦿🥊🥊🔥🎯🔥👽💥👽🛸💥🛢️🦾🛢️🦿🎯🛸🥊🛸🥊🛸🥊🤗🤗🤗🤗🤗

Crown wheel.not ring.

Hi Rob you can just use a bolt circle formula on your hass machine that gives you all the dimensions for the hole pattern

rob going in dry with that tap huh

please dont go 100% rapid first go, someday it will crash and fuck yo machine up haha

Man I wish I was there to help you with the programing, I have a few tips for working on the cnc(no pun intended). You don't have to be completely fearless when running your programs, start it slow, some machines have a dial on the machine for the rapid feed rate and normal feed rate. Also if you close your normal feed rate the machine should stop moving completely except for the spindle. As for the programing, your contour is correct but see if you can "ramp" down at a continuous rate instead of directly plunging into the material every new depth cut you take. So start like 0.01 above and no lead in or lead out either because you don't want to ramp down 2 inches and have the tool want to lead out ^^

Rob, try using helix (spiral) cutting for this sort of work. It's less aggressive then just dropping the mill down. You'll be able to cut faster, have less wear on the tools, have even load all the time, so less wear on both the machine and parts, "cause" a even cutting temp, so less risk of warping the finished products. I recommend you look for a used CAM license from a top brands like PowerMill or MasterCAM (two options; either the license is on a special type USB dongle or it's software only, in which case you'll need the entire computer/setup, both are common. Make sure it isn't a pirate version, minimum demand a original recite! These programs will rat on pirates and you'll then get a nice little mail from their lawyers, will get more expensive then buying a new licenses very fast!) Using one of the top brands will ennable you to use dynamic milling technics, this will further lower wear and risks. If you get a real 3 axis license you'll be able to make parts you couldn't imagen, by just a few mouse clicks. The "AI" in those will do most of the work for you in dynamic mode, so you basically only have to plan/calculate which tools you need active to achieve you goals regarding surface and corner finish. Even threads above M10 (3/8 in) are mill'able with the right software and just 1 or 2 specialized thread mills (a set with 1 carbide shaft and 2 55/60 degree heads will set you back 200-400$) I would like too point out that you'll ofc need a ton of experience to achieve real toolmaker quality, but in reality these advanced CAM softwares are getting to a point where my (pro toolmaker) experience means less and less. Good work doing the math! :) It's rare to see people doing that these days since it so mush more easy to make a quick CAD model and just check to measures in the software (which i btw recommend, less risk of messing up) Helix "starting hole" tips (use this to avoid having to purchase drills and setting new tools up all the time, less risk of collision): the closer your helix D is to your tool D, the less -Z per round. Never go under 1,1xD, never go over 1,9xD. Helix is da bomb, as you americans would say, perfect for basically everything, starting holes, contours, precision holes, roughing out 3D surfaces and so on :) PS for future reference imagen stainless is like chewing gum, it'll stick a loot to your tools, causing very high wear, even at low cutting speed. At low speeds this is easy avoided by adding a spray or drops of proper cutting oil/ high oil concentration cooling liquid. Regular steel needs cooling at some operations, but with dynamic milling (very high cutting speed, high feed, low engagement 0,05xD, max debt your tool will allow) you'll likely only need high pressure air "cooling" (it's not really cooling that much, mainly to evacuate chips fast enough. Using the right speed + feed will evacuate 90% of generated heat in the chips) PPS Do not EVER use a end mill as a drill!!! Almost impossible to do without lots of experience. Use smaller mill + helix technics. If needed, only if needed, pre-drill to 0,5-2mm from finish hole D and "drill" with a end mill, low feed, max 1mm between "pull ups" to cool and evacuate chips

some handy info: www.sandvik.coromant.com/en-us/pages/default.aspx?Country=us&UOM=imperial

Now you can sell those extra shims for a profit on eBay, Craig s List, etc.

Rob starts to give math lesson, then just cheats😆 you gotta love it!

Speeds and feeds rob. Drills are not supposed to glow red 😂. Just giving you a hard time, you doing and awesome job.

As someone who’s been working with metal and running and setting up cnc’s for over four year you are doing very well with it all.

*slowly stroking up and down* “you can actually use this to tap”🤣🤣 classic Rob being oblivious

AND JESUS CHRIST, ya trying to gimme a heartattack?!? Slow that Z rapid down on your initial approach

Oh oh...assuming they're all equally apart will bitecher ass (especially on directional things)

How come you didn't use the factory shim as a template? Using a sharpie, mark out the holes to drill as well as your inside/outside circle measurements.

HAY BUDDY DID YOU SAY DO THE SHIMMY YEER LOL

Bruh. Got u a sweet cnc, study feeds and speeds for materials and watch your fixturing and bang em out, screw the manual with a janky dro. Also look into some thick aluminum and o ring material and a vacuum pump.

It’s so cool seeing rob use the same exact machines I use on a daily basis at my work

you said 4 three times in the tittle, should’ve gone for four

for the love god rob please used tapping fluid or cutting fluid. i cringed so hard. also this is why fab work on cars cost so much kiddies

Rob to machine things more efficiently you have to check a couple parameters...... like the material you’re cutting and the material of you milling cutter.... I’m studying mechatronics engineering and I’ve learned how to fabricate things with cnc machines the “correct” way (basically the way you’ll have a better finishing and a more efficient cut) if i can help you with anything hit me up...

Too many ads, I'll come back when you have reduced them. Good content just too many ads for a 14 minute video with a 2 minute self ad inside.

Need to get SimpliSafe on your mail packages now

cat + heat = im still so curiou ...z no math ... you just forget heat.... and still works .. one heat :)

It make me cringe when you tap with no oil

Random end point gets me every time.

please read my comment on the other video.. avoid using imperial over metric. EDIT: just noticed that your drill bench is imperial anyway.. RIP i guess. EDIT2: your CNC can tho...

Love he showed everything no secrets really doesn’t cut major spot out

FYI: The material Rob is using to make Shims is literally called "Shim Stock."

Rob is a goat

His ad segue was almost as smooth as Ed Bolian, and quite a bit better than Linus Sebastian. On a more serious note. This is amazing how far you've come.

Rob, you've got to try tap magic cutting fluid. It saves your drill bits, makes drilling/tapping easy.

Who else is a machine operator and understands the code as it flys by

Do you end your videos in the middle of it, or is it something wrong With the upload? Like this, end’s when you fit the shims on the housing?

Cnc mills are awesome, a water jet would’ve been a better tool for the job however

Having a CNC machine is pretty great, right? Don't have a part, make it. Don't have a tool? Make it.

While manual machining I would power tap everything, just leave the tap kind of loose and if it binds it just spins in the chuck.

Using a Haas CNC machine: Formula 1 technology! :-)

As a machinist of 27 years. Get yourself a good fabrication shop with a laser cutter. They can pop those out in less then a minute a part. Fixturing sheet metal is a bitch.

Look at oshcut dot com.

Rob, I think is safe to say you are not the first nor the last to have a small collection of "OOPS" tools. Can't wait to see you commenting on This Old Tony's videos. Or should I say, I can't wait for the Colab'.

I remember that I had to learn a little bit about CNC code in school. It all came back to me when you showed the screen.

Great work! I find machining to be quite fascinating. So interesting to think that with the right tools and know-how, many parts could simply be made custom in the shop. Love it.

i feel like you have almost if not already earned the title takumi

Math +science × risk =∆∆∆∆ universal communication. Go rob...

And this is why almost every one of my comments have the word "Genius" in them lol, I need to start using "mad scientist" a little more. Because you can't deny it, Rob is a rotary mad scientist and a Genius!!

Rob they make a great app thats a Speeds and Feeds Calculator to have on your phone. Its very close and accurate, this what my dad and I relied on when he bought his first CNC and we stil use that app today.

Hahahah... the counting... Such easy but fun thing :D

11:02 reminds me of the guy out of charlie and the chocolate factory playing with the super computer. 🙋‍♂️🇦🇺

Anyone know what cutting fluid that is? Lots of bubbles, which had me thinking some kind of oil/cleaning solution lol

Ur diff will break if its going backwards and ppl say there is something to adjust on the pinion, read the comments from the previous video about ur diff

Should've used a hold-down plate to put an even clamping load on that shim stock and prevent the bending you got at 12:40.

Nah

Hey kids, wanna buy some shims?

Try using spiral flute taps, I think you will love them

Machining tip: you can set the NC to interpolate the circles. So it will cut the diameter whilst spiralling down in Z at the same time. Maybe go 0.008” per ‘lap’ of the circle if you want to be cautious. Those 6 flute cutters don’t like to be plunged into a face. Maybe get a slot drill (2 flute) or a 4 flute end mill 👍🏽 Also turn your rapid traverse down to make it a bit less scary 👍🏽

3:21...no Rob. We don't kow what you mean because we use METRIC! So should you.

I think I saw a comment mentioning this already but just to be sure. I worked with a DMG Mori DMF 260/7 for quite some time so, I'm used to a different machine but this still applies. When running a new program, no matter who wrote it, run the feed extra slow. Especially during machine head movement. I always have my hand on the feed knob when running a program for the first time. That way I can slow everything down during critical moments and if something is wrong, I can just turn the feed to 0 and than back it out. That way to machine doesn't go into emergency stop and I can quickly edit and then resume the program. Saved me countless tools and a spindle or two. Replacing a spindle costs about 12000€ on that machine and many of the tools go into the thousands as well so, it's worth slowing down.

Slow your rapid down to at least 25% when watching a program for the first time please

I bought the factory Bmw shims 5 years ago I believe, it comes in 2 sets if I remember, it wasn't cheap though, like 200+ bucks. I've used quite a lot setting the diffs, but having custom ones gonna make your life easier for sure. Nice job

Inches make life so so complicated. Use mm like the rest of the world!!

There is a quicker way of shimming the dif.... Cut small pieces of shim and then place them under the cover until correct distance is found then just cut the round shims to that distance !!!

Those turned out much better than I expected - a saving in time and some good maching practice, too! Old school would be hole punches and sharp scissors. New school I'd have had them laser or water jet cut - either of which would have added days to the job - smart move avoiding that.

Rob, never stop being such a badass

We love you Rob!

Yo we gotta name the cats...let's come up with some suggestions.

Hey Rob, 7:48 allen key jamming in the table

I would take a set!

Ok, hands down my favorite car enthousiast youtube channel.

cool vid, but it needed more cats

Are you winning son