/r/machining

Photograph via snooOG

Your place for machining, CNC, memes, and cool parts!

Come join us on discord! https://discord.gg/3sgvsw2BDs

What is r/Machining:

  • A place where people can share interesting footage, setups, parts, and more!

  • A place where people can seek feedback on their work and setups

  • A resource for tips and tricks, advice, and peer to peer learning

What r/Machining is Not:

  • A place to share or use any illegal software, or copyright-protected tools and content — Piracy of software will not be tolerated here.

  • A place to self promote — Feel free to post your videos and content in the community, but any strictly promotional content may be removed, please prioritize helping others and sharing useful content over using the subreddit for self growth or company promotion.


Rules

  1. Submissions must relate to Machining - All content in the subreddit must remain on-topic, and related to Machining and other similar topics. Some exceptions may be made to this rule, but this is on a post by post basis and may require contacting the moderation team first.

  2. Behavioral Guidelines - We want r/Machining to be a friendly and welcoming community. Do not spam, harass, insult, or use hate-speech at any time towards other users, even if it is in a jokingly manner.

Discrimination will absolutely not be tolerated. Wishing harm on others or encouraging self-harm or suicide, as well as the aforementioned behavior, is grounds for an immediate permanent ban from the subreddit without warning.

  • Self-promotion guidelines - Creating a post with the purpose of promoting yourself, your services or your own content is not allowed. In the situation that a user is requesting commissioned work, it is fine to respond and promote your services. If anything you post can result in the gain of ad revenue, followers, or other similar actions or monetary gain, it may be removed under this rule.

  • No Low Quality Submissions - Low quality submissions, general statements, and duplicate submissions may be removed under this rule.

    • All submissions Must have the following:

    • A proper title that is descriptive of the contents of the submission
    • A proper flair
  • For Image/Video Submissions:

    • A clear/non blurry image or video, coolant happens and can't be avoided at times.
  • For Text Submissions:

    • An appropriate body that contains a clear explanation of the problem or question

    Please remember to always follow the Reddit site-wide rules - This includes the following:

    As well as any other Reddit Policies.


    Important Links / Automod Commands (coming soon!):

    /r/machining

    28,718 Subscribers

    2

    Looking for job shops looking for work, Aerospace Components etc u

    In the state of Ohio in Aerospace Services, looking for job shops interested both regional/around the US/canada is good. Looking for runs from 1-100 pcs etc Would need material certs and to send prints requires NDA etc, reach out if you are interested in quoting me.

    Regular metals are like 4140, 6160 etc , sometimes random HDPE’s and stuff its a mixed bat, and lots of black oxide parts and zinc/ nickel plating and heat treated parts.

    It is a pleasure to make your acquaintance, regards,

    2 Comments
    2024/11/22
    15:38 UTC

    1

    Setting up a CNC machining company

    My father and I are starting a CNC machining company. My father has over 20 years of machining experience and decided to open his own business. We currently have a CNC lathe, a lathe, a milling machine and a few other machines that help us at certain times. We have some local clients, but nothing fancy, and we want to expand our business to find companies and provide services to them. What is the best way to do this?

    16 Comments
    2024/11/22
    15:24 UTC

    4

    Mazak vs Dn solutions

    Dear All

    Does anyone have any experiences with both machines? We are trying to buy turning machine. Quick turn 200 vs puma 2100. Is mazak worth the money? I just want some opinion :)

    4 Comments
    2024/11/22
    11:35 UTC

    1

    Yasda PX30i 5 axis mill

    What do you guys know about these machines? Looking like I’m going to land a very high volume order and I’m weighing my options. This machine has caught my eye. Any comparable machines we should consider?

    1 Comment
    2024/11/22
    04:44 UTC

    15

    Are these standard threads?

    I'm asking you guys because you seem to deal with matching and measuring threads a lot! Are these threads some sort of standard? I want to model a new spout in Fusion 360 and would love it if I don't have to manually model them.

    OD is about 37mm and thread pitch is about 4.8mm?
    They seem to be a sort of buttress thread but it's plastic so not sure if that makes any difference.

    https://preview.redd.it/ryx7knio5b2e1.jpg?width=4032&format=pjpg&auto=webp&s=22dbd69f4fa8d39f9ab2dce8b3f8fd7d073db95d

    https://preview.redd.it/wts19lio5b2e1.jpg?width=4032&format=pjpg&auto=webp&s=bc7ad4a2e1acce92c983ef80de316d52ec269b60

    13 Comments
    2024/11/21
    19:44 UTC

    2

    Custom stone cutting machine design idea suggestions

    I don’t work in a machine shop but I have a job to build a machine to automate a process at work. I need to build a machine to cut disks up to 25” diameter out of stone slabs using a die grinder as the cutting implement. My plan was to build a turntable with a center overhead clamp with a thrust bearing foot. Motor driven turntable with an adjustable armature for the grinder to mount on and let gravity do its thing as far as cutting force.

    Has anyone worked with such a machine before? Does a machine like this exist?

    26 Comments
    2024/11/20
    02:11 UTC

    3

    Help choosing a material

    Hi, ive recently decided to take on the task of creating my own 1 of 1 gaming mouse from scratch, its something i have been thinking about doing for ages and next month i've decided im gonna do it, now i really like the idea of the BEAST X magnesium alloy mouse by WLmouse, would anybody know what type of magnesium alloy that would be? im planning on prototyping many designs on my 3d printer and eventually when i get a design i like i will go to a local machining company and get some metal samples made, however the only thing that im stuck on is that magnesium "alloy" i know i obviously wouldnt be able to use pure magnesium however i have absolutely no idea on what alloy i should go for hoping someone more knowledgeable could bless me with that info, Thanks :D

    8 Comments
    2024/11/20
    00:04 UTC

    9

    what machine is this?

    5 Comments
    2024/11/18
    20:30 UTC

    2

    Deckel FP-1 opinions on machine, estimated value, etc.?

    Considering buying a Deckel FP-1 as it is not very commonly available in Norway. And because of that I´m also unsure how to value it... don´t have many comps here...

    He´s selling it to the highest bidder above 35.000 NOK (Approx. 3150 USD)...

    Text from the ad translated to english:
    Deckel FP-1 milling machine from the early 60s, which runs like a dream, tight and nice, with upper arm => both vertical and horizontal milling. Spindle run-out with 10 mm sleeve and transition is less than 1/100, check video. There is no play at all in the cone. Feed on X and Z axis works perfectly and the axes swivel silky smooth manually. Aikron DRO with miniature scales (about 10,000 NOK in total) and Wohlhaupter boring and planing head (bores out and plans a plane or, for example, a groove for an o-ring that is completely perpendicular to the boring axis) + quite a lot more. Demanders stick. Frequency converter provides soft start, motor brake and reverse.

    Se links below for more pictures, video etc.

    So, I know this is a very sought after machine and valuable... but I don´t know any of the nuances between variants / vintages etc. So just wanted to get an opinion of what you guys think of this machine, any pitfalls to look out for, estimated value etc?

    https://preview.redd.it/8ij0wld2ag1e1.png?width=1280&format=png&auto=webp&s=c08798791a3d5a014dca71143751eeb7af96453d

    You can see more pictures of the machine for sale here:
    https://www.finn.no/recommerce/forsale/item/380368397?ci=9

    Video of spindle run out:
    https://www.youtube.com/watch?v=471QIE4qA5I

    Demo of machine:
    https://www.youtube.com/watch?v=PzaSy6LbGPs

    4 Comments
    2024/11/17
    11:58 UTC

    18

    Anyone know which model Weiler this lathe is?

    10 Comments
    2024/11/16
    13:59 UTC

    4

    Looking for machine clamp for my new hobby mil (HBM BF25)

    The table of my newly acquired HBM BF25 is 18 cm deep (7.08") and I'm looking for a good clamp that is compatible with the dimensions of my machine. It should also be of good quality and last for many years. Strangely, most clamps that I find are far too big (30cm long or even much longer). They don't fit on my table.

    The only clamp that looks good and could fit is the HBM type 7 clamp. It is 24.5 cm long (9.65"). What are your opinions / advice here? And how do you mount this clamp to the table? I dont see any holes for bolts...

    Thanks!

    HBM type 7 clamp

    10 Comments
    2024/11/16
    13:01 UTC

    15

    How could I mill these splines?

    I need some direction on how i could cut these external splines on a 0.75" shaft: https://imgur.com/a/8TBofUg

    I know it can be done with just a normal endmill as they show here:

    https://www.youtube.com/watch?v=gDQLIEV3IpA

    https://www.youtube.com/watch?v=PY7N-kliLiI&t=422s

    I know if I had a spline cutter I could just rotate my workpiece 360*/6splines=60degrees per spline, but with a normal endmill I will have to make a total of 12 cuts, not just 6. I can't come in with the endmill dead center, how do I know at which angle to come to my workpiece so that 12 cuts get s me the necessary dimension for my spline as they show in their videos? Particularly this section of Tony's video: https://youtu.be/gDQLIEV3IpA?t=347

    14 Comments
    2024/11/16
    04:31 UTC

    119

    King VTL is boring .0007" out of round

    52 Comments
    2024/11/16
    00:16 UTC

    6

    Purpose of features on this grinding wheel dressing tool holder

    Hi everyone,

    As a research student I have been using this holder for mounting single point dresser tool for dressing grinding wheels. It have been available in our laboratory.

    https://preview.redd.it/9p5qsxirb41e1.jpg?width=3056&format=pjpg&auto=webp&s=10757a2f069c0172330edcbac6161496a5619d0c

    While it has performed the required function I wonder what the highlighted features (slots) on it are for.

    https://preview.redd.it/p48zq3msb41e1.jpg?width=3056&format=pjpg&auto=webp&s=d317d092409c5f8bd49b30c094d2a6c23204ca68

    Can you guys give your thoughts on this?

    2 Comments
    2024/11/15
    19:39 UTC

    14

    Enlarging drilled holes in various materials

    Hi all. Possibly a simple question from a non-machinist - just a DIY guy with a drill press and an occasional need to drill larger holes (up to 1/2") in steel, aluminum, plastic, etc.

    Anyway, when moving up from pilot hole to final diameter, is there a recommended sequence of drill diameters? For example, if starting with a 1/8" pilot going to 1/2" final in 1/4" thick mild steel, how many steps are recommended? Or, what diameter increment is best? How does it change for different materials, thicknesses, etc.? Would it be different if using a hand drill?

    18 Comments
    2024/11/15
    14:56 UTC

    10

    Bearing question

    Obligatory not sure if this is the right sub. I’m replacing bearings on a blower motor for a tube heater. The bearings are 608z that were press fit on the motor shaft. I ordered two different brands of replacement bearings with part numbers 608-2z and 608zzc3. Both of the new bearing sets are loose on the shaft. I thought about green loctite or center punching the shaft. I’m concerned about vibration doing either of those things. Does anyone know why the bearings are not fitting properly?

    28 Comments
    2024/11/14
    10:48 UTC

    20

    How to skin this cat

    How would yall recommend grinding this nub off at home without making it look like total trash? I have an angle grinder and a cheapo die grinder from harbor freight. I would like for it to set flush with the bottom of the plate. If it’s not possible how much would a pro charge to do it?

    13 Comments
    2024/11/13
    22:28 UTC

    12

    Anyone Bought a Cheap Arse R8 Spindle?

    Rebuilding this j head copy I got for free out of a corporate scrap pile. The spindle is bent to shit, like 200 thou of runout at the top. I am likely going to try to flame straighten it, but I came across a couple of these ebay posts selling R8 spindles with bearings for $100 shipped.

    Has anyone else bit this bullet before? I'm just a hobbyist, so I don't mind being the guinea pig

    16 Comments
    2024/11/12
    17:27 UTC

    49

    Looking for more information on this microcut milling machine

    I recently purchased my first milling machine. It's a Bridgeport series 1clone. I can see it was manufactured by buffalo machinery out of Taiwan but is branded as microcut. As this is my first machine it's all a bit new to me. I have been trying to find a manual for the machine so I can familiarize myself with it as well as fix a few issues I have noticed with it. There is no model number visible on the plate. It's fitted with a 2hp motor also.

    I have been able to find information about the microcut 837 which seems similar but has variable speed head so I don't think that's what I've got. Haven't been able to find out anything else about it online.

    Interested to hear if anyone has seen or dealt with this clone before. Cheers

    15 Comments
    2024/11/10
    03:30 UTC

    19

    How would I hemisphere 1/4inch rod ends, quickly and repeatably, on a lathe?

    I have a mini lathe and would like to know if there is a tool or could I make a tool to put a 1/8in radius hemisphere on the end of each rod I’m working. Basically making a ball end. I may have to do hundreds of these and would like to be able to do it quickly. I’m working bronze. I have already tried to make a tool by drilling a 1/4 hole in steel and then cutting it out to only be a 90 deg section of the hole that I could hopefully use, but it just wasn’t cutting. Any tips?

    Edit: Thanks to all for answers. After heat treating the tool I originally made, it began to cut better, but I think I’ll buy a curve cutting tool from McMaster as some suggest

    39 Comments
    2024/11/09
    18:03 UTC

    4

    Anyone have a electrical panel pic on ther Mazak vtc16b?

    Got one super cheap at auction but before I go to the work of moving it into my shop I'd like too make shure everything is there. Thanks ahead!

    1 Comment
    2024/11/09
    13:53 UTC

    19

    To cut through an inch of hardened steel: a cut-off tool or an angle grinder or concrete saw?

    I've got a steel excavator track that I need to cut apart. The joints are about an inch thick. I can't figure out if I should spring for an angle grinder, a hand-held cut-off tool, or rent something like a Hilti gas-powered 12 inch concrete saw and put a metal-cutting blade on it. Any ideas or tips would be greatly appreciated.

    51 Comments
    2024/11/08
    19:22 UTC

    8

    Single phase VFD to run 2hp three phase Bridgeport

    G'day guys, I am trying to get this Bridgeport running in my home shop. It's got a 2hp three phase motor and my shop has 15amp 240v outlet. Can someone please point me in the direction of a suitable VFD for this application. As I understand it if I am running a 2hp motor via VFD I should have a 3hp VFD to cover it when derated is that correct. Any help would be appreciated. Cheers

    15 Comments
    2024/11/08
    03:55 UTC

    5

    How to best mount my new mill on this base?

    I'm in the process of setting up my newly acquired mill. I bought it from a private individual as nearly new. Unfortunately I just discovered that the mounting holes in the bottom of the XY table dont match the holes in the base on which I want to mount the mill. The XY table "holes" are spaced about 225 mm (see photo). The holes in the base are spaced only 160 mm.

    The mill is a HBM BF25, but the base is meant for a smaller model. The correct base is sold separately for about 200 euros. Would it make sense to get that base or can I use this one and save some money?

    How would you fix this? My idea is to make an adapter plate from trespa with holes for the base and holes for the XY table. Or would you do it differently?

    https://preview.redd.it/10v4asiz7kzd1.jpg?width=2000&format=pjpg&auto=webp&s=17b3d4f89364c8c6d0a1ad4c0a3d3ca795e75a17

    https://preview.redd.it/lgwo9riz7kzd1.jpg?width=2000&format=pjpg&auto=webp&s=b77904c4af31fd1bd3cc8b2214af430c11ca6674

    8 Comments
    2024/11/07
    22:58 UTC

    3

    Hi, I am trying to drill and form a M6 6G thread. Drill lg-40mm thread lg- 32mm on a Aluminium rod for dia-12mm.

    Problems is the drill has trapper where it has a increase in dia at beginning and less in the end of the hole. Due to which the thread for mation at beginning is not good. Please kindly help with problem..

    9 Comments
    2024/11/07
    09:41 UTC

    9

    Safety glasses

    I'm new here. I did try the search function and didn't get much help.

    Does anyone have recommendations for some spectacles that help with lowlight in the shop(imagine working in the batcave)?? Polarized?? Yellow/Rose tints?? I'm open to anything.

    Bonus points for anything that stands up to repeated alcohol wipes. Im in a hydraulic shop so have to constantly wipe oils of the lenses and it just seems to degrade everything so fast.

    13 Comments
    2024/11/07
    03:59 UTC

    3

    Need some help with a technique

    What is the technique called when you make a cut Back the tool off the job stop the lathe, reverse the chuck rotation touch the tool on so it rubs and slam the auto feed so it returns back to the original start

    But on the way it polishes the surface to a brilliant mirror I’ve done it a few times with success surly it has a name

    2 Comments
    2024/11/06
    09:11 UTC

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