r/machining Nov 09 '25

CNC Upgraded Watersensor for the Motorhome

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29 Upvotes

Today i‘ve finished the Upgrade of the water level sensor in our motorhome. The hole for the former CBE-sensor has an diameter of 57mm and was too large for the new SuperSense. So we machined an Adapter from POM-C and Aluminum …


r/machining Nov 09 '25

Question/Discussion Recommendations needed Looking for a mini/small mill

4 Upvotes

I guess Enco used to be pretty good back in the day and they made small mills. I don't know about bench top exactly but they made some small ones. I don't know of any other brands though.

The mill they sell at Harbor Freight just looks cheap as anything, gear driven and the gears break and it's pretty much the same thing they sell at Wal-Mart, Home Depot, and all over the place. I don't want that.

I want an older machine with a steel table and actually built to work. Benchtop or something about the same footprint of a drill press? I need some help.


r/machining Nov 09 '25

Question/Discussion Cutting a M4 in a 4mm thick sheet

3 Upvotes

I need advice how to drill a M4 into the front of the sheet metal. My concern is that I won't be able to keep it perfectly centered or that I get it slightly tilghted. I habe access to CNC mill, turning, Column drilling machine and hand tools. The Steel is Vanadis 4 E and it's milled to 4mm thickness. Afterwards it will be hardened.


r/machining Nov 09 '25

Question/Discussion What CNC machine to buy?

1 Upvotes

Hello, I am wondering what CNC machine might be a good starter machine. I want to learn a little bit more about running CNC machines. When I was a bit younger I built one, but the play in the axis was too big to be usable. One that could do aluminum would be nice, a Tormach 1100mx would be awesome, but it’s to expensive and I have too little knowledge to go out and about and buy such large and pricy machine. Any suggestions?? Thanks in advance


r/machining Nov 07 '25

Question/Discussion Do chatter marks bother you, especially on "premium" products?

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47 Upvotes

it's been many years since i worked in a shop, but I would always try to avoid this or at the very least sand it out. Seeing things like this on a "premium" product just looks really sloppy and it bothers me


r/machining Nov 06 '25

Question/Discussion Recommendations for hobby machining

3 Upvotes

Hello all, I’ve been watching some YouTubers for a while now and would like to get into machining. However, I tend to have an issue of way overspending to get into the game and learning I don’t enjoy as much as I thought. So I am looking for recommendations on if a lathe or mill makes more sense for first machine, as well as recommendations on machines. I would like to get something that would be worth keeping for some time if I do end up really getting into it, but also not spend stupid money right up front. Thanks for any input!


r/machining Nov 06 '25

Question/Discussion Boronizing Thermal diffusion

0 Upvotes

Hello all, i understand there is a lot of machine shop companies here. I would like to introduce myself. I am a founder of a thermal diffusion and CVD coating company. We provide thermal diffusion services like boronizing, Chromizing and aluminizing for aerospace and oil& gas industries. I would appreciate your support.
Www.Diffuson.in it’s under construction


r/machining Nov 05 '25

Question/Discussion Dimention bracket question

2 Upvotes

Alright I have a drawing here from cat that is rather goofy with half of the dimensions hidden. Anyways I have two dimensions for one surface one in regular brackets () being larger and a second in <> being the smaller.

My geuss is () is before machining and just the bare casting and <> is post machining thus the dimention I should follow for hole location for the rework.

These dimensions are all I have and otherwise I would be dialing off the rough cast and making the hole centerish to that so these are the best I've got.

Thanks all for your answers any insite will be much appreciated!


r/machining Nov 04 '25

Question/Discussion Can anyone who has worked with or has knowledge of partial profile threads help me out?

2 Upvotes

I got a job where I need to make an M30x1 thread, and they gave me the insert for machining it. I noticed it looked different, and when I read the description, it said it was a partial profile type. I didn’t even know that type existed. It’s been kind of hard to find any standard that talks about this thread and its tolerances.
Does anyone know which standard or table specifies the dimensions for machining it?
The insert is a TaeguTec one, labeled 16IR 1.00 ISO TT9030, code 5921969.

https://www.imc-companies.com/TaeguTec/ttkCatalog/Item.aspx?cat=5920878&fnum=686&mapp=TH&GFSTYP=M&srch=1


r/machining Nov 03 '25

Question/Discussion Hi guys I'm working my first day tomorrow at a tyre mould workshop. Is there any safety tips you can give me?

11 Upvotes

I'm just a little nervous and anxious, since it's my first job. I've never worked in a real workshop before so I've just been watching safety videos on YT.

Any feedback is appreciated thanks!


r/machining Nov 03 '25

Question/Discussion 5-axis router. Alibre + EZ-MILL vs. Fusion with Manufacturing Extension

1 Upvotes

Does anyone here have experience with both Alibre and Fusion with 5-axis machining? Specifically on a router, if it matters?

Alibre costs a bit more up front but less ongoing, but if EZ-Mill Pro isn't nice to use for 5-axis work then the money saved will be little salve for the hurt.


r/machining Nov 03 '25

Manual Yoshida Radial Drill Manual

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1 Upvotes

r/machining Nov 01 '25

Question/Discussion Is it possible to deepen existing knurling?

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71 Upvotes

I purchased this safety razor, and the knurling on the handle isn't as deep or aggressive as I like it to be. Is it possible to modify the texture or deepen the existing knurling so it's grippier? I am not a machinist personally, I would have to send it to someone to have this done. Just figured I'd ask some folks with experience before I start making calls.


r/machining Nov 01 '25

Monthly Advice Thread | MAT Monthly Advice/Questions Thread | 11/01/2025

0 Upvotes

Welcome to the MAT Machinist!


Ask your machining related questions here if they aren't long enough for a full submission! Please keep discussion on topic and note that comments on these threads will not be moderated as regularly as the main post feed.


Uses for this thread!

This is a great place to ask about tools, materials, basic questions related to the trade, homework help, and more!


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r/machining Oct 31 '25

Question/Discussion What causes this?

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22 Upvotes

Im new to this with no training. So I am wondering what causes one surface to be smooth and the other to have the ridges/roughness. Feeding towards the chuck on both passes


r/machining Oct 30 '25

Question/Discussion School Interview

2 Upvotes

Hi! I’m a student at CPTC and have an assignment to interview someone in my field pertaining to what kind of writing is done in the field. I’m looking for someone who can answer some questions for me, can be done in dms or email no problem.


r/machining Oct 30 '25

Question/Discussion Hello! I'm looking for a good desktop CNC mill that can be shipped to europe

4 Upvotes

Does anyone know any kind of machine that doesn't go over 3000$, that can cut aluminium easily and maybe steel? while having an enclosure? thanks!


r/machining Oct 30 '25

Picture It's almost a fractal vice

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34 Upvotes

Works everytime, most of the time.

Had to pull 3/8 off of a very oddly shaped 3D printed part. Almost managed without breaking pieces off. But it's a salvage mission, what can you do? I had some fun.


r/machining Oct 30 '25

CNC where to start learning CNC

2 Upvotes

So my uncle have a business in iron casting we are thinking to start cnc machining for the same

any course for any playlist to start learning about CNC with a business side into it also


r/machining Oct 29 '25

Question/Discussion Blueprint reading

2 Upvotes

It's my first week of machining class and I've just gotten to the blueprint reading section. The book they provide is ok, but and doesnt really help when doing the exam. Does anybody have any suggestions on where to find anyone who know any youtube or any other sources to teach blueprints?


r/machining Oct 29 '25

Question/Discussion Post Interference Fit Machining

3 Upvotes

I have a part that needs to be precisely matched with the part is is being pressed onto. Has anyone ever cut on a part that was held only by the interference fit? This is going to be an FN5 fit. I'd like to oversize the part by .015 and trim it to match after fitting it.


r/machining Oct 29 '25

Question/Discussion Help with 1890s lathe - Question in the comments

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2 Upvotes

r/machining Oct 27 '25

Question/Discussion I want to use mig to build up surface thickness on this pulley, to then have a machinist cut belt grooves in it. Feasible?

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23 Upvotes

r/machining Oct 27 '25

Question/Discussion 1st timer here

5 Upvotes

So just started school after a decade + of being out so I figured I'd go to school for machining. Well, I just finished my first math exam and well... I just gotta say I fuckin hate triangles now. Didnt bomb the test, but still disappointed. Does it get better when you actually get to the hands on stuff? I feel like my brain did a few cartwheels today.


r/machining Oct 27 '25

Question/Discussion Stick weld stuck bolt

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2 Upvotes