The Coordinate Measurement Machine (CMM) is stealing your shop's productivity.
Being the darling of the quality department, it is sometimes used as the lazy way to measure. Let me explain.
There has been a trend in aviation MRO and other manufacturing sectors to send every part that requires measurement to the CMM. While this might seem like a great idea, as technology is generally beneficial, it is sometimes the wrong approach.
1️⃣ The CMM can be likened to a hammer, echoing the saying, 'when all you have is a hammer, everything is a nail.' This analogy holds true when you invest in your first CMM. It's a substantial financial commitment, and the temptation to use it for everything is strong.
Consequently, you begin sending parts for measurement. This is good initially, but it can lead to the abandonment of other more cost-effective measurement methods in favor of the CMM.
The consequence of this shift is that your shop may lose proficiency in hand measurements, becoming overly reliant on the CMM and its operator. 'Just send it to the CMM!' becomes the battlecry.
2️⃣ The CMM can become an expensive bottleneck. As your shop begins to shift more parts to the CMM, the CMM room can turn into a black hole that engulfs parts.
Why does this happen? Because every new part requires initial setup and programming before any measurements can be taken, and this is typically handled by few trained operators. The result is that parts start piling up, waiting for a simple diameter measurement.
In the meantime, the part has been removed from your CNC, disrupting the mill setup. When the part is put back into setup, it's never quite the same.
Furthermore, your CNC machinist is left waiting, leading to idle machines. Your CMM is overwhelmed, and the solution being considered is purchasing another CMM that costs over $120,000 to alleviate the bottleneck.
3️⃣ The CMM is often overkill. With everyone embracing the CMM trend, everything ends up being measured in your CMM room. This includes bearing diameters, simple dimensions, and clearance holes for fasteners, and the list goes on.
Before you know it, you're dealing with part rejections of a mere 0.0001 of an inch in part of a clearance hole, because the entire hole was scanned.
You've scrapped a perfectly good part due to narrow focus.
In conclusion, I am not opposed to using the CMM for measurement; quite the opposite, I believe it's a valuable tool for production. However, I have witnessed instances where it has turned into a sort of monster.
Unfortunately, people remain oblivious to this phenomenon, often due to a bias toward technology, lack of awareness, or sheer laziness.
Ultimately, it's your shop, and I'm not the one purchasing your next CMM!
#grownostr #engineernostr
The Coordinate Measurement Machine (CMM) is stealing your shop's productivity.
Being the darling of the quality department, it is sometimes used as the lazy way to measure. Let me explain.
There has been a trend in aviation MRO and other manufacturing sectors to send every part that requires measurement to the CMM. While this might seem like a great idea, as technology is generally beneficial, it is sometimes the wrong approach.
1️⃣ The CMM can be likened to a hammer, echoing the saying, 'when all you have is a hammer, everything is a nail.' This analogy holds true when you invest in your first CMM. It's a substantial financial commitment, and the temptation to use it for everything is strong.
Consequently, you begin sending parts for measurement. This is good initially, but it can lead to the abandonment of other more cost-effective measurement methods in favor of the CMM.
The consequence of this shift is that your shop may lose proficiency in hand measurements, becoming overly reliant on the CMM and its operator. 'Just send it to the CMM!' becomes the battlecry.
2️⃣ The CMM can become an expensive bottleneck. As your shop begins to shift more parts to the CMM, the CMM room can turn into a black hole that engulfs parts.
Why does this happen? Because every new part requires initial setup and programming before any measurements can be taken, and this is typically handled by few trained operators. The result is that parts start piling up, waiting for a simple diameter measurement.
In the meantime, the part has been removed from your CNC, disrupting the mill setup. When the part is put back into setup, it's never quite the same.
Furthermore, your CNC machinist is left waiting, leading to idle machines. Your CMM is overwhelmed, and the solution being considered is purchasing another CMM that costs over $120,000 to alleviate the bottleneck.
3️⃣ The CMM is often overkill. With everyone embracing the CMM trend, everything ends up being measured in your CMM room. This includes bearing diameters, simple dimensions, and clearance holes for fasteners, and the list goes on.
Before you know it, you're dealing with part rejections of a mere 0.0001 of an inch in part of a clearance hole, because the entire hole was scanned.
You've scrapped a perfectly good part due to narrow focus.
In conclusion, I am not opposed to using the CMM for measurement; quite the opposite, I believe it's a valuable tool for production. However, I have witnessed instances where it has turned into a sort of monster.
Unfortunately, people remain oblivious to this phenomenon, often due to a bias toward technology, lack of awareness, or sheer laziness.
Ultimately, it's your shop, and I'm not the one purchasing your next CMM!
#grownostr #engineernostr
4 days ago I finally got one of my #Bitcoin miners hooked into my home ducting system.
I’ve been heating my house & earning some delicious sats at the same time. Haven’t needed the space heaters or the fireplace. All night with just the miner. https://v.nostr.build/VWP7.mp4
Drawing air from return air? Then out to a dedicated air vent?
Looks good!
Good morning, Sir!
Like nuclear fission, but with cats!
nostr:note1f26gau3my9lkcgvf2ht4569vmfyqjj9j7py0zf97rar27nn8ukys8x9nye
Did you just graduate in engineering?
First job in industry? Now the real learning begins.
You are about to work in a world that may feel foreign to you, and that’s ok.
Here are three skills that you didn’t learn in school that you will need in industry.
1️⃣ Learn how to properly measure parts yourself. Never assume that people are measuring things correctly.
I have saved hundreds of thousands of dollars in jet engine parts by remeasuring them. They were measured wrong in the first place.
2️⃣ Learn the basics of machining processes. You cannot make corrections in processes if you don’t know how to speak the language and understand what the machines are capable of doing.
3️⃣ Understand the properties of the materials you are working with in your facility. This will allow you to determine what process is the most effective on your material.
Some hardnesses of steel cannot be milled on a CNC, for instance.
As you make your transition into your new industrial career, the more skills that you are aware of the more you can effectively solve problems.
Follow me for more daily shop tips and engineering advice.
Cheers!
#grownostr #engineernostr
Did you just graduate in engineering?
First job in industry? Now the real learning begins.
You are about to work in a world that may feel foreign to you, and that’s ok.
Here are three skills that you didn’t learn in school that you will need in industry.
1️⃣ Learn how to properly measure parts yourself. Never assume that people are measuring things correctly.
I have saved hundreds of thousands of dollars in jet engine parts by remeasuring them. They were measured wrong in the first place.
2️⃣ Learn the basics of machining processes. You cannot make corrections in processes if you don’t know how to speak the language and understand what the machines are capable of doing.
3️⃣ Understand the properties of the materials you are working with in your facility. This will allow you to determine what process is the most effective on your material.
Some hardnesses of steel cannot be milled on a CNC, for instance.
As you make your transition into your new industrial career, the more skills that you are aware of the more you can effectively solve problems.
Follow me for more daily shop tips and engineering advice.
Cheers!
#grownostr #engineernostr
Did you just graduate in engineering?
First job in industry? Now the real learning begins.
You are about to work in a world that may feel foreign to you, and that’s ok.
Here are three skills that you didn’t learn in school that you will need in industry.
1️⃣ Learn how to properly measure parts yourself. Never assume that people are measuring things correctly.
I have saved hundreds of thousands of dollars in jet engine parts by remeasuring them. They were measured wrong in the first place.
2️⃣ Learn the basics of machining processes. You cannot make corrections in processes if you don’t know how to speak the language and understand what the machines are capable of doing.
3️⃣ Understand the properties of the materials you are working with in your facility. This will allow you to determine what process is the most effective on your material.
Some hardnesses of steel cannot be milled on a CNC, for instance.
As you make your transition into your new industrial career, the more skills that you are aware of the more you can effectively solve problems.
Follow me for more daily shop tips and engineering advice.
Cheers!
#grownostr #engineernostr
Awesome, thanks for your response! The people I talked to have also been using on engines with better success than so called easy outs.
We are trying it out on a jet engine part. With a 1 million dollar rebuild fee!
It’s a new method to me! Hope it works.
Cheers!
Usually, there isn’t enough thread to grab onto. If you can then yes. In our case it was stuck. Like really stuck.
Cheers!
Being an engineer is more than designing parts. Most of the time it is learning little tricks to help save a part.
I learned one of those tips yesterday.
A mechanic broke a bolt while trying to remove a part from an engine. The shop gave us this solution to remove the bolt.
1️⃣ If you have exposed thread, attach the same size nut to the broken bolt. If not, just temporarily secure it to the broken bolt.
2️⃣ MIG or TIG weld the nut to the broken bolt. Puddle weld to fill the hole in the nut.
3️⃣ Let the nut cool and then remove the nut and broken bolt with a socket wrench.
This has the potential to save a part from a very costly overhaul.
Let me know in the comments if you have ever used this method.
#grownostr #engineernostr
What a better way to program people than with a programmable “friend”.
Your first day on the job can be challenging.
You can often feel overwhelmed and unprepared.
Here are 3 things I learned in my first engineering position.
1️⃣ Don’t feel like you have to know everything. There is nobody that knows everything in a given setting. If someone tells you they do… they are lying.
2️⃣ Be humble and learn eagerly. Being arrogant and ignorant is a toxic combination. There are plenty of people that will willingly teach you what they know if you are humble enough to listen.
3️⃣ If you don’t know the answer to a problem, knowing where to find the answer is often better in the long run. Relationships lead to more answers down the road.
I used these things to navigate my first engineering role and it continues to help to this day.
Cheers!
#grownostr
I wish you could’ve. He was the best manager. Thanks for the zap! Cheers!
Some pieces of advice are better than others…
Some are less than desirable, others stand out all your lifetime.
The best advice I ever received was from an old manager, David. What he said was so simple but gives you the power to avoid confusion and drama.
He said, “Jeremiah, never be a tween-er.”
Meaning, always try to avoid becoming the middleman in an exchange at work.
Get the people that need to talk together so they can talk and leave you out.
Less confusion that way and you don’t get blamed for not conveying the information properly.
Or, get to go back and forth all day relaying messages.
So, never be a tween-er!
Thank you, David!
#engineernostr #grownostr
It’s something that I have to remind myself occasionally…
More like often!
Cheers!
Good morning nostr!
Don’t compare your chapter one with someone else’s chapter twenty.
Have a great day!
Cheers!
#grownostr #coffeechain
Accomplished the temporary installation of the dual S9 miner supplemental heater for our house.
It is tied into the return air plenum for the HVAC system. Will feed warm air into the house when the house heat pump is not on. When the heat pump is on, the miners will preheat the air.
First tests are good!
Let me know if you are interested in a more in depth instruction.
Cheers!
#Bitcoin #mining #grownostr #diy #plebchain

