CNC Milling Practice

This was a simple practice piece I worked on one day and wanted to share some of the progress.
#abom79 #milltronics #cncmachining

[helicopterjohns]

Thanks for sharing another CNC video. Love your channel. Keep those videos coming.
I am a hobbyist machinist and also have the Renishaw Wireless Probe and Tool Setter on my HAAS TM1P. I know the Tool Setter is coolant proof but I found an old piece of tupperware with the right depth and diameter and turned it upside down to cover the Tool Setter while using the machine in normal use. The only time I take it off is when I am setting tool heights. This keeps the coolant and chips off of the tool setter.

I also made an manual and automatic air blast system that I attached to my PCOOL nozzle. I mostly use it in the manual mode with a foot pedal. When I want to get rid of any excess chips I just give the old foot pedal a press and presto the chips are blown away from the part. In the automatic mode with the help of one of my internet buddies I was able to set the length of time the blast will occur and how often the air blast will occur. The air blast system allows me to keep the door shut and keep the coolant inside the machine.😊

[thepagan]

Seeing the steel block and some of the difficulties you experienced while machining took me back to the mid to late 1980s when i was working on the JP233 project. Part of the submunition was 30 runway crating bomblets. Part of that system was made from a 2.5% Nickel Chromium Molybdenum steel. It 2as by far the most awkward steel I have ever worked with. Hard spots, drills and taps breaking, inserts blunting/chipping, tools pushing off, surface finish problems. We completed the contract and the whole stock of JP233s was used by the R.A.F. and the Royal Saudi Air Force during Operation Desert Storm. Good post explaining the difficulties and remedies, thanks for posting.

[billdoodson]

I love your manual machining and I'm loving your move into CNC. It's all starting to come together and if it means you can turn out better quality parts, faster for your customers, you'll get more customers. Lots of naysayers here, but you have to make a living, you do what you need to do.

[kaceenunez]

Ten percent of tool diameter is a good starting point for radial engagement. It will really depend on what your machine/setup/tooling will allow. As you learn and grow more confident and comfoertable you will realize cnc machines are capable of things that you could never imagine. Every once in a while i look back at old programs i made where i thought i was really pushing the limits and find out just how slow and gentle i was going. Just keep working at it and you will find the sweet spot for you.

[tedsaylor]

You may still be learning the Computer Controlled part of Machining - but you instantly understood about the burned inserts (and more importantly why they burned up). Your experience and knowledge of machining principles shows.
Another fine video, Adam.

[corndog]

You answered my question. When i was machining 410 stainless, we were running full depth with a 3/4 in rougher/finisher, 5-7% stepover, 4500 rpm, 60-80ipm, constant surface feet program. (I forget the trade name) 1 1/8 depth of cut, but a pretty light stepover. It sounded like a wood shop, it was singing. Plus, many times we ran them dry!

[kimber]

good stuff Adam keep on working on it cortana you are an inspiration to me and I'm sure many others

[mdvener]

You get better with each passing day. Very nice work learning a complete new process.😊

[EdgePrecision]

Adam, you mentioned the rapid override in relation to the feed of the cutter. The rapid override shouldn't change the cutters feed rate. Only the rapid feed rate. In fact does the rapid override on your machine go to zero? If so this can be used to advantage while running the program. By setting it to zero while the machine is feeding it will stop before any rapid move. Until you turn the knob off of zero rapid feed. On running in a tool for the first time. There should be a distance to go display on your control. This shows the distance the tool has to go to reach the end of the move it is currently on. So running a tool the first time press feed hold as the tool rapids down to the work. With the machine now stopped look at your distance to go display in the Z axis. If the distance to go in the Z looks wrong for some reason. Like there is only an inch to go but the display shows more than that. Stop the machine and correct the problem. It is better to stop and check then to regret it later. This can also be used in moves in the X and Y axis while milling. For instance when your chamfering cutter is approaching the part. You could also press feed hold just before it reaches the edge. Then look at the distance to go in X and Y. If there are some big numbers it's going to cut the chamfer to large . I generally like to start a chamfering cutter off the corner of a part, like this instead of arcing in. That way if something is wrong it is easier to catch/see it before cutting to much of a chamfer. Otherwise it looks like you are getting this CNC stuff pretty well. At first it's a little intimidating. But it will all become second nature like running a manual machine is to you.

[andrewhorsburgh]

I am fascinated watching you with this new age machinery. I'm 73 and this is all new world technology. Top marks mate for teaching yourself on these space age machines. New Zealand.

[seansysig]

Good catch remembering previous tool paths and results to rectify unsatisfactory results and recovering those errors. Enjoying your educational endeavors, especially using these state of the art CNC machines. That Titan endmill should take .0050 doc, but finish will suffer.

[brianhillary]

Thanks for taking us along. That is an impressive machine I did have to laugh though, because everything about that set up is so impressive. But it still needed a $0.99 chip brush. I only hope that you laugh about it to. Another entertaining video!

[patrickcolahan]

Nice having the pieces from your buddy to play with and continue your learning process. Hate to have to waste good stock. You are coming along nicely. Thanks for sharing.

[robertwest]

I love that vise. First time seeing one.

[bobtherat]

CNC machines are amazing to watch. Thanks for posting it

[ianlangley]

Hi Adam, Glad to see you are getting more confident with your new machine. Re the surface finish from your face mill. If your feed per tooth exceeds the width of the wiper flat on the insert your finish will certainly look like that. Also are they precision ground inserts or as sintered as the tolerance difference between the two may mean one insert is sitting a little higher which will also give that effect. I worked 28 years for Seco Tools of Sweden and really enjoyed the milling side of the range. There are so many things that can effect surface finish. Cheers Ian New Zealand

[Dillybar]

What's up with all the people hating the new cnc setups? He's trying out his new gizmos and sharing with us, no need to get on his ass about ditching manual machining

[dsbonneville]

"sparks flew, emotions ran high..."😂

[davidnelson]

Not a big fan of CNC but it definitely has its place. Glad you're getting to learn this.

[jryer]

Don't let the critics get to you. It's all about learning and getting to place where that mill becomes a profitable part of the business.