Stop Teaching Manual Machining -- Ep. 84
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- Опубликовано: 1 окт 2024
- In this episode of "Taps and Patience," AJ from Audacity Micro and Harrison from Precision Ingenuity reconnect amid a whirlwind of personal and professional demands. Harrison reflects on a particularly busy time, managing high school graduations, church camp meetings, and a flood of work, finally finding a moment to breathe. The conversation quickly transitions to a unique machining challenge he encountered with an undercut and a key seat cutter, providing listeners with an inside look at the problem-solving process and the intricacies of CNC machining.
Patreon: / tapsandpatience
Harrison details his troubleshooting journey, sharing how he tackled an oversized key seat feature. He explains the importance of precision and the steps he took to diagnose and correct the issue, emphasizing the value of patience and meticulous attention to detail. This segment offers valuable lessons for machinists, illustrating the practical application of tools and techniques in overcoming unexpected hurdles.
The episode also delves into the use of probing and the manufacturing extension in Fusion 360. AJ and Harrison discuss the benefits and limitations of these tools, offering tips on how to effectively integrate them into machining workflows. They explore topics such as tool wear compensation, in-process probing, and the creation of inspection reports, providing listeners with actionable insights to enhance their machining accuracy and efficiency. This blend of technical advice and real-world experiences makes for an engaging and informative episode for anyone involved in CNC machining.
Block delete aslo stops the machine from reading ahead (whether it's turned on or not), so it will cause the cut to be jerky because it's reading each line individually
Oh I didn't know that! Thanks!
Saying "You do not make money on manual machines" is way too broad. There is still a place for manual work, mainly in repair but also in quick 2nd op type stuff.
Exactly how much time should devoted to training on manual equipment is debatable, but it hasn’t and probably never will go away.
Never machined anything before I just like listening! 🗑
Wow! I didn't think we would hold any interest to someone outside of machining. Are you in manufacturing at all?
I suppose I have listened to podcasts outside of manufacturing before, so I guess I do get it.
H, I suspect your problem with inspection compensation has something to do with tool deflection? Might be worth taking a spring pass before measuring... As far as pull studs go, we have separate tools for separate machines. In all reality, you are going to need to buy more tools anyway, right? And if you go with a DNM you're going to want Dual Contact holders anyway...
Hey dudes! Keyseats are always...always over sized. Especially from big names like KEO or moon. I think it's just a standard that they will be .005-.015 larger than nominal on the diameter.
I had no idea! Why is that?
@AudacityMicro I have no idea but it's consistent enough that you can assume it's always over and not get burned. I think it might have something to do with the blanks that they start with. Carbide ones are usually more accurate but in our shop we always assume is over size and measure it and use the measure diameter as the nominal tool size.
I wonder if it's to make it easier to cut woodruff key slots in shafts.As long as the width is right, the cutter being a bit larger doesn't hurt.
@RSPFactory or maybe to allow for regrind.
What’s better for you guys, watching on RUclips…. I typically just listen for the most part or listening on Spotify.
I assume here brings you may bring some revenue…
It really does not make a difference. Just do whatever you enjoy more. Our total RUclips revenue over the entire podcast is so negligible that it just doesn't matter. You would quickly out-do any ad revenue by giving us a penny every month on Patreon 😅.
I can tell you that I pay attention to the RUclips channel more, so RUclips tends to get episodes a little earlier, and with a lower likelihood of strange issues (like last weeks episode 😅)
We use a 4.0000” ring that has been calibrated by an outside source to set up our probe. When we have tight tolerance we check the ring with the probe to make sure it is running properly.
Makes sense! I assume this something you load, and unload from your machine every time? Not something you can use for an in process check?
Yes that is correct. You could make it any size you wanted. I personally think if you are running smaller parts you would want an inspection aid that is somewhat close to what you are checking. The key is to make sure what ever you do use is calibrated 2x a year or checked if it was dropped.
If you had room on your mill table you could keep it setup if you wanted to
On the pullstud q the kitamuras have the same stuff as haas i believe other shops ive workwd at each machine lust had holders but that gets spendy. (Also doosan just added a financing division so expect killer deals on their machines)
I cannot believe you guys are actually serious. You can't academically or by listening to a podcast learn how to machine. You learn through experience. That's why the best machine is I've known started out as journeyman and worked their way up. This is why mold makers are some of the best machinists on the planet and it's becoming a lost art in part 2 Guys Like You thinking that manual Machining is a waste of time. Any student should be forced to sit in front of a manual Mill or lathe for 6 months and learn how to cut metal not break tools or harm themselves or the machines. I have watched people that read a book Crash $100,000 machine costing $10,000 and damage. You basically want a drone, a button pusher. You want someone that's going to do what you tell them to do and be completely dependent on you. You would never find me working for you or even listening to your Channel again. A prime example I had the simplest part that could have been turned on a manual lathe in a half an hour probably less and stop by my friends machine shop and he said no I'm going to have to find someone to program this and run it on the CNC. When I asked why he said because no one here knows how to use the manual lathe. That is sad and pathetic. You are not hiring Machinists you're hiring at best machine operators and at worst button pushers
Lol, you clearly didn't listen to the episode.
You seem to be conflating "manual machining" and "experince at machining". Of course I want people to have hands on practice at machining. Students have X hours of time they get to learn machining. They can be using that time either for manual machining, or for CNC machining. If we teach manual machining, we are robbing of them behind a CNC machine. Modern shops do not run manual machines. Teaching a student how to run a Bridgeport prevents us from teaching them how to do the things they will actually do in their career.
Manual machining is a fine hobby, maybe once in a while it has a time and place in a shop. But in general, you do not make money on manual machines. I do not want to hire some knob-turner for $15/hr, who only knows how to crank a wheel. I want to pay someone $100K a year, who can run one highly automated machine, and focus most of his time on improving the process.
I think the real problem here is that most schools do not invest enough time and money in their shop. They are full of 1960's bridgeports because they are cheap, and schools need to make money too. It takes good systems and instructors to teach this stuff effectively, and unfortunately there are not enough good instructors out there. People need real experience on a real machine before entering the job market, they do not need to sit in a corner and play with a toy machine.
If you can find me one owner of a machine shop, whose biggest struggle is finding someone who knows that a tool cutting feels like, I will reconsider. The problems modern machine shops face, have nothing to do with elementary manual machining skills
Hi friend. As someone who works in higher education as a career, and has worked directly with CIM instructors & their students, you 1) did not actually listen to the video and 2) might benefit from taking time to make those connections in your area if you're a machinist looking to hire. Students aren't learning by reading books--the machining program wouldn't be accredited if that was the case due to State law (doesn't matter which state). Maybe look around your area and get involved in the machining/manufacturing community to learn more!
What a troll crash welder. I got more from the title than you did the whole podcast! I now own my own shop but 3 years ago I had not ran a machine, thought I had basic hand tool experience and blueprint experience from tech school.
Machining is literally graphs and numbers, beyond that it a simple understanding of how everything has flex and you need to account for that in the machine that's it once you have a basic understanding you can start feeling the machine do it's thing and your off.
@@LoneWolfPrecisionLLC100% 👍😀
What are the other podcasts/shows he mentioned?
The podcasts I mentioned? There's Within Tolerance, the Business of Machining, and Incremental. Those are my favorites at the moment
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