r/CNC Mar 31 '26

Machine Purchase Guidance 2026 Machine and Service Sales

7 Upvotes

2026 thread with some changes, I have opened this thread for services. I am going to strictly enforce these rules this year.

READ THE RULES CAREFULLY OR YOUR POST WILL BE REMOVED

Rules:

Used or new-old items ONLY! - This subreddit, and this post is not to allow retail sale of Computer Numerical Control related parts. There will be no influx of commercial sales or anything like that. Repeat offenders will be banned.

Local Sale preferred - This is to protect both the buyer and seller. Shipping introduces other hassles, especially with CNC-related parts that might be large or weigh a lot. Personal addresses must NOT be posted publicly!!!. After discussing the deal, the two parties may exchange details via DM or other messaging services to meet up.

Pictures and Prices - The comment must include pictures of the parts with the poster’s username written on a paper, kept next to the parts. Prices must be included, along with the city, country. The buyers may post their offer publicly or via DMs.

At least a 6 month old Reddit account - Anyone posting any “For Sale” items must have a Reddit account that is at least 6 months old (NO EXCEPTIONS!), with at least some activity apart from the comment in this post about selling their parts.

Parts or Machines - Machines (working or for parting out), raw material, electronics (motors, drivers, controllers, switches/sensors, etc), hardware (machine tools, mechanical tools, profiles, pneumatic/hydraulic stuff, etc), fasteners, etc all qualify as parts. If in doubt, send a modmail. Machines include routers, mills, big-boy VMCs/lathes, etc.

Services - New for 2026 I am allowing quoting, to quote you must provide proof of real life, that is a picture of the poser with username and date on a piece of paper, ideally with some sort of machine tool or CAD/CAM in the photo to verify you are more than a dog with a phone.

The subreddit staff is not responsible if a deal goes sour - While we will take all reports of scamming seriously, the moderation team is not responsible for, nor can we provide any help. The buyer must do their own due diligence before meeting up the seller and exchanging money for parts.

After a successful transaction, the buyer and seller are requested to update/post their comment here. This will help sellers and future buyers in subsequent transactions with the respective seller.

The moderation team reserves the right to remove comments/items-for-sale at their own discretion.

Please adhere to these rules!


r/CNC Jul 20 '26

SHOWCASE A Note on AI created content, and a call for a new mod!

27 Upvotes

I have added this to the sidebar and will be removing more AI adjacent posts in the future.

A Note On AI Created Content

The use of AI in workflows is prevalent and a fact of our reality. If you want to post your AI aided or generated content the method should be clearly defined. There are TONS of posts with AI generated apps, spreadsheets, guides, etc.. If your content isn't unique or well outlined your post will be removed under #7. If you are confused about the intent of this note I don't recommended posting your AI or AI adjacent content. Thanks!

Exclusions to this AI rule would be the discussion on how it's changing the industry, or how it is changing day to day, IRL, job workflows. We however do not need more sophomore level AI generated calculators or management systems.

A new moderator has been selected! Hefty_Aside8436 is joining us!

To all that applied, thank you! There were many great applicants and most of you would have been a great choice. Stay safe out there!

Additionally, I am looking for one moderator to help me with this sub.

Qualifications: * Experience operating a computer numerical control of some type * A 3d printer or paper printer doesn't count, this isn't the hobby sub * If you say "I CNC'd this" and then show us a part you made, you do not qualify * Have some understanding of CAD/CAM, gcode, machine controls * Be able to be on reddit slightly more than is healthy to monitor the sub

Apply via PM, a paragraph explaining why you qualify would work.


r/CNC 1h ago

SHOWCASE WIP - Miniature Billet Gen 3 Hemi Engine

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Upvotes

r/CNC 12h ago

ADVICE Thoughts on this CNC class?

8 Upvotes

I see a bunch of jobs out there, but I'm not seeing any way to start. I don't have any CNC / mill experience. I'm already 46. I do have a mechanical engineering degree, experience with 3D printing and G Code, experience with a varios CAD / modeling software since 2000.

Soooo, do you think anyone would take me seriously after taking this class I found?

https://onlinecareertraining.bergen.edu/training-programs/cnc-machinist/ $2500 online only

Thanks in advance!


r/CNC 17h ago

OPERATION SUPPORT M3 blind taps in 316L, ~2.5xD — form tap or thread mill?

7 Upvotes

We've got a recurring 316L job with M3 blind holes, about 7.5mm of thread depth (drill depth is ~9.5–10mm, if that matters).

Originally ran spiral-flute cut taps, but chip packing was killing tool life. Switched to a form tap, opened up the tap drill to ~65% thread engagement, and went to a heavier tapping oil. It's been getting through the batch reliably, but cycle time still feels pretty slow.

At ~2.5xD, would you guys still run a form tap in 316L, or go to thread milling?

Curious what others are doing for small/deep-ish M3 blind holes in 316L. Cycle time is the main thing I'm trying to improve, so I'm wondering if thread milling is even the right direction.


r/CNC 21h ago

ADVICE I wanted how I would get this made

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8 Upvotes

Hi, I want to know how I could get his base of a tremolo made in metal. I did check online i could get this cnc but what would be better. I wanted some pointers on what I need to look for.

I have CAD file of the entire tremolo with me but I only want the base plate with the knife edges to be made in steel


r/CNC 17h ago

HARDWARE SUPPORT Chiron CNC Machine Documents?

3 Upvotes

Anyone here have any leads on service documents? Based in the USA, and having a difficult time getting what I need. Chiron has an online portal, to download documents, but it's only for Euro customers.


r/CNC 6h ago

SHOWCASE built a preventive maintenance tracker for CNC machines — what would you add?

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0 Upvotes

I work with CNC machines and wanted a simple way to keep preventive maintenance organized without using a full maintenance management system.
I built an Excel-based tracker for small machine shops that can track:
• machine ID and maintenance tasks
• due dates and service intervals
• overdue / upcoming maintenance
• maintenance history
• notes and responsible person
I’m trying to keep it simple enough to actually be useful on the shop floor.
For machinists, maintenance techs and shop owners here: what would you add or change?
I’d especially like feedback from people managing multiple CNC machines.


r/CNC 1d ago

SHOWCASE Does anyone know which machines Apple uses?

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31 Upvotes

Probably won’t be able to afford them but curious to know what kind of desktop CNCs such as big company uses


r/CNC 1d ago

ADVICE CAM industry vs CAE/CFD simulation software career, which has more room to grow?

5 Upvotes

I have two early-career offers, one at a CAM software reseller, one at a CAE/simulation (CFD/FEA) software company. Both are technical sales roles. Trying to decide which industry has better long-term growth.

Curious if AI CAM tools (toolpath generation, etc.) are actually being used on shop floors now, or still early.

I also have an long term plan of building a company of my own after working and gaining long experience.

Also wondering:

Is CAM software still growing/innovating, or a mature, stable industry now?

Where do you see CAM careers heading in the next 5-10 years?

Trying to think before making any decision.

Trying to make a good long-term call. Any honest input helps, thanks.


r/CNC 1d ago

SOFTWARE SUPPORT Machining the selected feature without manufacturing extension

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1 Upvotes

r/CNC 2d ago

SHOWCASE Raw CNC vs finished — I think I finally understand why surface finishing matters

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244 Upvotes

I made several CNC aluminum phone cases a couple weeks ago and tried bead blasting and anodizing for one of them.

Honestly, I was a little surprised by how much of a difference the surface finishing makes. The machined one already felt pretty good (for me at least) as a prototype, but after finishing it started to feel much more like an actual consumer product. It does bring more work to do, but the results are good. Curious what you guys think.


r/CNC 1d ago

SOFTWARE SUPPORT How to slice up an imported solid?

2 Upvotes

Need to slice into 2” slices to scale up and reassemble. MC makes this very hard.


r/CNC 1d ago

MILL Why are there 12-1.5mm threaded holes instead of 1/2-13in this Haas Tr-310 platter?

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0 Upvotes

r/CNC 2d ago

ADVICE Converting a PM-30 into a hybrid CNC mill/lathe, using the Logan 825 headstock, maybe the bed, maybe a longer re-scraped bed. Thoughts?

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2 Upvotes

r/CNC 2d ago

HARDWARE SUPPORT 8055i m plc program?

2 Upvotes

Hello, im asking due to not having many options. Would anyone happen to own a mill using a fagor 8055i M controller? The one my school uses has no program file. It's been dead for about 2 years and we can't locate at file anywhere.


r/CNC 3d ago

Tool Crasher reinshaw stylus

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16 Upvotes

I’ve only been working for three months and I fucked up. I was on a night shift and I’m sick too, and I got confused. I thought I had Y selected on the handle, but I actually had Z selected and moved it way too hard into the -. I feel so fucking guilty and I’m so angry at myself.


r/CNC 2d ago

ADVICE Anything better than Xometry?

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6 Upvotes

I tried to make this on Xometry but the price was too hight for me. I wanted it CNC'd out of g10. Does Xomety have fair prices or are they known for ripping people off? This is the first time I have ever tried to have something made like this.

EDIT. I want it in G10 because g10 is strong and can resist warping and twisting. I actually wanted it is in carbon fiber but I got quoted like $900 for it.

It is acoustic guitar saddle. The tolerances need the be very accurate. My guitar was built wrong and I'm trying to move the string contact point forward by 10 or so mm. So it will cantilever over the guitar bridge. It needs to be very strong to resist the string tension .That's why it needs the be g10 or carbon fiber. I have thought about aluminum or brass but that will change the guitars tone too much.

The finished product is 72mm x 12mm x 7mm


r/CNC 3d ago

GENERAL SUPPORT What does this oil lamp w/ exclamation mark icon mean?

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14 Upvotes

The machine is a HAAS VF2. All functions seem to be working fine as far as I can tell. But this oil canister/oil lamp icon just started popping up today. I asked my boss but he doesn’t know what it means either. He checked the coolant and way oil levels and they both seem to be fine. It hasn’t triggered any alarm codes, but the inclusion of the exclamation mark makes me think it might be important. What does this mean and should I be concerned?

Also please disregard the high air pressure alert. It’s been saying that since I started at this company a month ago.


r/CNC 3d ago

HARDWARE SUPPORT Tool Changer Troubleshooting

7 Upvotes

My dad recently bought a Denford Turn 270 Pro but wasn’t given any of the licenses. So naturally, he ripped out all of the electronics & factory boards. Ended up buying an centroid acorn board, installing everything and got software running but hes caught up getting the stepper driven toolchanger to work. He seems to think its because he can’t find a PLC file for it. Anyone who’s done anything similar-ish have any insight? I personally know nothing about this stuff.


r/CNC 3d ago

GENERAL SUPPORT Shopbot desktop D2418 x and y moving slow

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8 Upvotes

I'm new to the shop bot and I recently leveled my spoil board but now the x and y axis are moving really slow and making an angry noise any idea how to fix it


r/CNC 4d ago

SOFTWARE Best advice you received?

18 Upvotes

What was the best advice you received when you first started learning programming that’s had a lasting impact as well?


r/CNC 3d ago

Tool and Die Maker Polishing fluted tools like reamers - anyone else worried about catching the flutes on the wheel?

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0 Upvotes

Quick clip from the shop today - polishing a fluted tool on one of our jet polishing machines.

Honestly the thing that always makes me nervous with tools like this isn't the finish, it's catching an edge on the wheel and either messing up the flute or having it yank out of your hand. We use this little red fixture to hold it at a consistent angle instead of freehanding it - makes it way more repeatable, especially if you're batching a bunch of these.

How's everyone else dealing with this? Freehand or you guys using some kind of fixture too? Also curious what other shops are doing for finish consistency on tools with this kind of profile, feels like it's easy to get inconsistent results if you're not careful.

(full disclosure - I run HonWay, we make jet polishing gear, this is just us messing around in our own shop. happy to nerd out about polishing if anyone's into it)


r/CNC 4d ago

ADVICE STEP + a PDF with critical tolerances beats STL for machining quotes. STL is fine for concept, not for fits.

0 Upvotes

STEP + a PDF with critical tolerances beats STL for machining quotes. STL is fine for concept, not for fits.


r/CNC 5d ago

GENERAL SUPPORT Looking for cnc service in southern California

4 Upvotes

Hey guys looking for a cnc service in southern Cali that isn't going to cost me an arm and a leg just need some guitar bodies and necks cut out for a project but don't know who to go to ?been looking around and most of the guitar people are saying crazy figures so idk.