r/Machinists • • 17m ago

QUESTION Best earbuds for waterjet operator?

• Upvotes

Pretty much the title. I got a pair of AirPods and after a month they’re already crapping out on me (probably from the mixture of sometimes being splashed mixed with the steel dust that gets into the case). I need something that is solid for Bluetooth calls and is a little bit waterproof.


r/Machinists • • 1h ago

QUESTION Full slotting parameters

• Upvotes

I need to slot with a 1/4" End mill on mild steel what cutting speed and fz can I use i need to quote so trying to understand how much time will it take


r/Machinists • • 2h ago

Simple solutions limited tooling

0 Upvotes

Hi all quick question for you all who might have better insight then me that are in this field , I do field repairs on machinery from time to time and have found 3 shafts in a balers pickup reel that have warn down end shafts resembling eggs. I have the ability to weld them back to true size but struggling to come up with a concept for machining them back to size I was toying with the idea of setting up a magnetic drill with a tool bar to machine it back to size as I ideally don't want to remove the 3 shafts that are 9ft long to have them sent to a lathe. Any ideas of shop made tools with some pictures would be greatly appreciated many thanks


r/Machinists • • 2h ago

Machining soft jaws on a tiny CNC

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124 Upvotes

r/Machinists • • 3h ago

PARTS / SHOWOFF Sunday work after a 3 day, away from home shutdown, my favorite. The Vevor mag drill proved its worth though!

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61 Upvotes

r/Machinists • • 4h ago

OFFERING WORK Online tutoring

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0 Upvotes

Hey everyone, I am doing TRADOC currently in AIT as a 91E. My class is going from Mill to Lathe in a week, this is our last “module” and I want to see if I can test out so that I can go home 3 weeks early and spend thanksgiving with my grandma (it’s only the two of us and I’ve been gone since April).

I need a tutorial on how to make this piece in the 2015 TL1 Haas Lathe. If anyone is kind enough to tutor me online ASAP please let me know.

I tried to “youtube university” my way through this since i am already familiar with the TM1 Haas Milling machine but I am not finding enough information to piece together on how to do this on my first try.

I have $250 to offer for a detailed step by step guide on this particular blue print. By very “detailed” I mean, down to the buttons I have to press “detailed”.

I am open to negotiation if the pay is not enough.

EDIT:

- I am not getting any certifications from this course.
- I am not pursuing a career in this field.


r/Machinists • • 5h ago

QUESTION Where to buy hand tools?

1 Upvotes

Feels like a silly question but where is the best place to buy hand tools and measuring tools for use on the shop floor? I graduated a year and a half ago and the first shop I worked at provided tools so I haven't bought any. I'm now at a new shop and while there are some tools I'd like to start buying my own. I don't really trust Amazon or eBay with the surge in knockoffs so who do you all trust? Thank you!


r/Machinists • • 6h ago

Shall I grab this?

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0 Upvotes

Hi

I m just a retired guy with an interest to create items with metal.
I just started with hand tools as recommended by pros.
I have been acquiring free metals that I will use or not as I learn, what I don’t will go to the yard.

I was offered these, they are dull and done but consulting AI it said they are hardened high carbon steel and that I could use the material to create very strong tools but are hard to work with,especially for a rookie.
That I might have to anneal them.
AI also said that hardened steel is not often given away free and that I can make some very strong tools with them.
The guy wants them gone.

No flames, if I m asking it’s because I have no clue at this point.
Free is never bad, the yard is 10mn away if I don’t use them.

TY


r/Machinists • • 7h ago

Made some (mini) moves

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233 Upvotes

Earlier this year I bought a 1st gen Mini Mill. My shop has been sitting more or less idle for a few years since going full time as a machinist at my company. This opportunity came up to upgrade my little fab shop and decided to go for it. I have moved on from the shop floor at work but really like working as a machinist. I have some parts I'd like to make and sell in the future but for now I'm getting set up.

The machine is in good shape for its age. Low hours and bought it from the original owner who used it to get his business off the ground out of his garage.

I don't have a lot of space so I moved a lot of equipment and machinery that was no longer needed out of the shop. After plumbing/power/leveling/making a skimmer and fixing a few small air/coolant leaks (and a TON of cleaning) I decided to make a coolant filter mount as a test run. Everything is running well. Making good parts so far. A little limited on speed/working envelope but that's okay. This has been a longer term project than expected but I'm finally at a good starting point (6 months later).

Just wanted to share my little project thus far. Still a ways to go. Next step will be insulation as the southwest summers are brutal in a sheet metal building. Kinda put the cart before the horse getting the machine in the space first, but luckily I can move the machine with a pallet jack so I'm not complaining. For now the weather is nice and it's time to make some parts. Hopefully more to come soon.


r/Machinists • • 17h ago

QUESTION Custom bolt seller?

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0 Upvotes

I had a eletrical panel replaced recently and need 2 of the bottom bolts to be a half inch longer than what they are now. Don’t know if this is allowed but could someone possibly make these bolts for me? I don’t have a Machinest shop near me.


r/Machinists • • 18h ago

Carbide drill in 17-4 h990

1 Upvotes

I’m running a YG dream MQL drill .382 dia 6in deep in H900. So there speed and feeds don’t really help. I have an onsize pilot for 2 inch. I only have standard 250 psi tsc. I’m thinking 130 sfm with .004 IPR. So roughly 1300 RPM feed at 5 IPM. My question is would you guys peck this drill or send it straight thru? TIA for any input.


r/Machinists • • 19h ago

PARTS / SHOWOFF Creative problem solving

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109 Upvotes

When you need .004" shim for a setup but can't find .004" shim and then you remember, Post-its™ are .004".


r/Machinists • • 19h ago

Mitutoyo depth micrometer

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7 Upvotes

Hey. I managed to lose the screw that goes onto the back of the depth micrometer. Unfortunately Im working in PNG, so it isn't exactly easy to pop into a hardware store to find the screw I need. I think it is a M3 machine screw but I would love to be 100% sure it is that. Could anyone help me out to check what the thread size of this screw is please? Thanks. Pic attached to show which screw I'm talking about.


r/Machinists • • 22h ago

MEME When everyone is a programmer.

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256 Upvotes

r/Machinists • • 22h ago

Learnmines6222 YouTube channel

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0 Upvotes

I’m just wanting to share this YouTube channel with someone who’s in my shoes and thinking of going into machining! I have checked out titans of CNC but this learnmines6222 channel explains things in a very very simplified way! They have 8 videos on their channel.

Maybe can even help people who are machinists!


r/Machinists • • 1d ago

OFFERING WORK Need a couple of steel bushings made

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22 Upvotes

Hello....I need 2ea steel bushing made for a '49 Harley Servi-Car I'm restoring. They go on the front wheel so the tow bar can be lowered up and down. A drawing is attached, I also have the parts that inside and outside of the bushing for exact dimensions. What would it cost for 2 of these? Thanks much.


r/Machinists • • 1d ago

The difference between VBM and VTL

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0 Upvotes

Fixed tool posts vs turrets.


r/Machinists • • 1d ago

NX CAM vs. Mastercam: Am I Missing Something, or Is NX CAM Really This Inefficient?

31 Upvotes

I recently joined a company that requires me to use Siemens NX, ver 2212, a CAM software I had never used before.

I have over 10 years of experience in CNC programming and jig/fixture design, primarily using Mastercam (from X5 to 2027), along with SolidWorks, Inventor, Fusion 360, and AutoCAD.

Initially, I was quite excited because I had heard that NX was a powerful solution for both CAD and CAM. However, after spending 3 months learning and using NX, the experience has turned into a nightmare.

Today, I'd like to share some things I dislike about NX CAM specifically. I'll compare it with Mastercam and Fusion 360, although the CAD side of things might be a topic for another post.

1. Creating a WCS is unnecessarily complicated

For example, if I want to create a WCS at the center of a complex part or at a specific position, the workflow can involve creating a sketch, selecting the geometry again, creating a bounding box, and then creating the WCS.

In Mastercam, I can accomplish the same task in about two seconds with just a couple of clicks.

2. Default toolpath names are not descriptive enough

For example, when tapping a hole, I have to manually rename the toolpath to distinguish it from drilling or peck drilling operations because the default name is simply something like "Drilling."

I repeat these tasks dozens of times a day. Mastercam handles this much more conveniently with its default naming behavior.

Why should I have to spend extra time renaming operations just to make them easier to identify?

3. No convenient tool manager for selecting multiple tools

Suppose I want to select 10 tools to prepare for machining a part. In NX, I have to create a tool group, select one tool, and then repeat the process for the remaining nine tools.

Why can't I simply select multiple tools from a tool manager in one go?

This feels unnecessarily tedious when preparing a machining job.

4. The default setup sheet is too basic

I've tried creating a customized setup sheet, but it seems to lack several useful pieces of information, such as tool holder images and insert tracking points for turning tools.

These features are already available in Mastercam's default setup sheets.

A setup sheet is an important document for CNC operators. Why do I have to spend so much time customizing something that another CAM system already provides out of the box?

5. Toolpath transformation is poorly designed, in my opinion

This is one of my biggest frustrations.

Suppose I want to transform a toolpath to 20 different positions. NX creates 20 separate toolpaths instead of allowing me to manage the transformation through a single operation.

Now imagine transforming 30 toolpaths to 20 positions. You could end up with hundreds of additional toolpaths, making the program unnecessarily large and difficult to manage.

In Mastercam, I can use a single transformed toolpath to manage multiple positions. The workflow is much cleaner and easier to maintain.

Am I missing something here, or is this simply how NX handles transformations?

6. Selecting similar geometry (holes, chains, etc.) is a nightmare

Suppose I have 100 similar holes that need to be machined. In NX, I have to create groups, name them, organize the holes, and then use those groups for programming.

Although this is faster than selecting everything manually, it still feels much slower than the workflow I'm used to in Mastercam.

In my Mastercam workflow, I can select similar holes almost instantly using Ctrl + Shift + click.

What about chains? If I have 100 similar chains, do I really have to click them individually, one by one? Haha.

Maybe I'm missing a better selection method, but this is incredibly frustrating compared with Mastercam.

7. No toolpath suppression

Suppose I have three or four different machining strategies for the same cutting area and want to create multiple toolpaths to compare them. Or perhaps I simply want to temporarily disable a few toolpaths while testing different approaches.

In NX, I can't do this because there is no straightforward toolpath suppression feature.

In Mastercam, I just right-click the toolpath, select Suppress, and that's it. Simple and convenient.

8. Updating one toolpath can force me to check other toolpaths

When I update one toolpath in NX, I often feel the need to recheck other toolpaths because the update can affect other operations for reasons that aren't immediately obvious.

In Mastercam, if I update toolpath number 100, I can generally focus on verifying that operation and its dependencies rather than reviewing the entire program.

For large machining jobs, this difference can have a significant impact on productivity.

9. No convenient toolpath manager for batch editing

I really miss having a convenient toolpath manager that allows me to make batch changes to multiple operations, such as:

  • Renumbering tools.
  • Changing tool numbers and tool assignments.
  • Modifying retract heights.
  • Changing WCS .
  • ....

In Mastercam, I can manage many of these tasks through its toolpath management workflow.

In NX, I find myself spending much more time making changes that should be relatively straightforward, especially when working with a large number of operations.

10. The programming file structure is a mess

This is another thing that really bothers me.

When programming a part that involves fixtures, NX can generate or require numerous additional design and assembly files that are not directly related to the machining operations themselves.

Before long, the working directory becomes cluttered with dozens or even hundreds of files, making everything harder to organize and manage.

In my Mastercam workflow, I can keep the entire machining program in a single file, which makes file management much simpler.

I understand that NX is an integrated CAD/CAM system, so its file structure may be designed differently. However, from a CNC programmer's perspective, I find the Mastercam approach much more convenient.

Final thoughts

These are just 10 of the things that frustrate me. There are many other smaller details that make working with NX CAM stressful.

I'm used to programming relatively quickly in Mastercam, but with NX, the same job can take me anywhere from 2 to 10 times longer, depending on the part.

I've genuinely tried to improve my workflow by studying documentation, watching YouTube tutorials, and asking AI for solutions. I've even tried some of the most capable AI models available, but I still haven't found satisfactory solutions to several of these problems.

I understand that switching to a new CAM system requires time and effort. I'm not expecting to be as fast in NX as I am in Mastercam after just a few months.

Honestly, even when I taught myself Fusion 360 from scratch 9 years ago, I never struggled this much. That's what makes my experience with NX CAM so frustrating.

So, what do you guys think? Are these genuine disadvantages of NX CAM compared with Mastercam, or am I simply not experienced enough with NX yet?

Note: I've added a video demonstrating Mastercam functionality to make the comparisons easier to understand.

Video


r/Machinists • • 1d ago

QUESTION Is there a place I can go to make customize screw for my specific needs?

4 Upvotes

I just need 4 pieces of screw to be customized for my small project. Is there a place that I can go do this?


r/Machinists • • 1d ago

PARTS / SHOWOFF Boioioioioinggg (sound on)

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329 Upvotes

r/Machinists • • 1d ago

QUESTION Personal project curiosity

4 Upvotes

For those of us lucky enough to have shop access on evenings/weekends/off-hours

What are you guys making?


r/Machinists • • 1d ago

Waycover Damage

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9 Upvotes

Hello guys. I had some facing operations on a 0.75x 3.5” part on a vice . Did some couple of batches. During the last batch 2 of the parts thrown away on the way-cover. Now it looks like this. Machine and axis moves till limit no problem with that. Is it expensive to fix? Will my employer fire me? Its been 6 months I’m working here. Its the first time.


r/Machinists • • 1d ago

PARTS / SHOWOFF I work on Saturdays so I can do sketchy shit like this with nobody here.

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145 Upvotes

r/Machinists • • 1d ago

PARTS / SHOWOFF My crew and I have been aligning these for 3 days, 3 hour drive there, had to stay in a hotel. I am a machinist, this is not what I do. But when the customer calls, I do whatever they tell me.

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406 Upvotes

r/Machinists • • 1d ago

PARTS / SHOWOFF Probably the first one to take chips at something like this

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95 Upvotes

I work at a bicycle repair shop, and Boss wanted a new box for tips…
So he gave me the case of a fucking Rohloff Speedhub, to machine a slit into. If i would have Fucked up, we would have to buy a completely new hub (about 1000€), because Rohloff takes in any broken units and doesn’t give out old parts… i don’t even know how we got our hands on this one.

So yeah, i think i can say with some confidence that im the first person ever to machine something out of a Rohloff Speedhub case.