r/hobbycnc Jul 02 '24

The For Sale Thread

7 Upvotes

Any parts/items from the previous threads can be reposted if they’re still available.

Rules:

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

  2. 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.

  3. 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 (if international). The buyers may post their offer publicly or via DMs.

  4. 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.

  5. Parts or Machines only - No services can be advertised. 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.

  6. 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.

  7. 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.

The previous thread - Use this to post about your buying/selling experience from the previous months only.

Note: Some comments in the previous posts have not included images with the listed items. Rule 3 will be enforced now. If you don't want your listed items to be removed, please include images with them!

We hope this thread helps everyone.


r/hobbycnc 18h ago

First hobby CNC build.

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77 Upvotes

Having issue with X travel. Not sure if it’s the ball screw binding, but under a manual computer controlled jog it moves fine until maybe 30in/min then makes a grinding noise at higher speeds. Y axis moves fine at over 100in/min. But when controlling the jog through a Gcode line such as g1 x10 f10 anything above a speed of above f3 causes the axis to stutter badly and make an awful grinding noise. My only ideas are to swap the x/y motors and make sure it’s not the motor or driver, loosen the ball nut, and maybe try setting the units in uccnc through g code.

Pm25mv conversion, I should have just bought the dro with it. I’m running uccnc, uc300eth+ ub1 breakout board, Nema 24’s x/y, and a Nema 34 z. A solenoid to control coolant through the GCode. 5um ditron magnetic scales, an Accusize Kurt clone vice, and an Arizona CNC ball screw kit.

Haven’t mounted the scales yet for the dro and need to shim the column it seems the head is nodding about 3thou.

Looking for any advice. I plan on running fusions’ cam software. Made a 123 block and had good results. Within a thou in.

Messy garage too I know, but only place I could set it up was a family members garage.


r/hobbycnc 12h ago

Need advice on TTC 450 Ultra dimensional inaccuracy

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11 Upvotes

Hey everyone,

I'm having some trouble getting accurate profile cuts on my TwoTrees TTC 450 Ultra.

I'm using a 3 mm end mill and checked it with a caliper. It's exactly 3 mm.

When I cut a square/rectangle, I'm getting:

40 mm outer dimension → 40.5 mm

25 mm inner dimension → 24.5 mm

100 mm outer dimension → 100.5 mm

40 mm inner dimension → 39.5 mm

So I'm consistently getting about a 0.5 mm difference, with the outer dimensions coming out too large and the inner dimensions too small.

What's confusing me is that the machine seems accurate when it's just moving. I checked 100 and 300 mm movements without cutting and they were basically spot on. Holes also come out the correct size, and the distance between holes is accurate.

Any idea why this could be happening? What should I check?

Is anyone who owns this or any similar machine facing the same issue?

Thanks!


r/hobbycnc 1d ago

I built a tiny standalone 3-axis CNC around an ESP32

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278 Upvotes

This is a tiny 3-axis CNC I designed and built as a fun compact machine.

The three axes use ST3215 serial bus servos with 14-bit position feedback, so the controller can read the actual axis position instead of simply sending open-loop PWM commands to hobby servos.

The controller is an ESP32 with a round touchscreen. It handles the machine interface, displays the live XYZ coordinates, communicates with the servos and can receive and execute Mach3-style G-code.

The spindle is a small A2212 brushless motor driven by an ESC.

It’s obviously not intended to compete with a proper mill. The whole point was to see how much functionality I could fit into a ridiculously small standalone CNC.


r/hobbycnc 1h ago

Grbl auto square

Upvotes

Hello everyone, did someone managed to get working dual axis in grbl, i want auto square function, i use 2 y drivers on my laser, so i want square funcion but cant get it to work, also im using arduino uno with cnc shield


r/hobbycnc 21h ago

The TRUE potential of hobby CNC!

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32 Upvotes

r/hobbycnc 1d ago

Does anyone else struggle with finishing projects?

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43 Upvotes

My dad and I have made several layered projects. The fun part is planning, prepping and sanding! After that I hit a wall. Here’s some of my unfinished projects from this summer.


r/hobbycnc 13h ago

Help Please🥲

5 Upvotes

I have a CUT 1200 CNC Machine. And the company i bought it from has gone belly-up. I need the drivers for this thing. The company i work for bought this from them back in 2019, and right now the company is out of order. I have been tasked with switching this machine back on, and making it work after not having been used for about 5 years. The old computer with the driver has fucked off and now i have to "Figure it out."😂😂. Help me please.


r/hobbycnc 2d ago

Sign for carpenter shop

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1.2k Upvotes

Laminate over plywood, carved with 30 degree degree v bit and 90 degree v bit for letters.


r/hobbycnc 15h ago

What type of connector is this?

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0 Upvotes

r/hobbycnc 15h ago

Comparing desktop 5 axis cnc work areas

1 Upvotes

Hi there, the k1 launch announcement popped up on GlobeNewswire this morning, and I took a close look. They are bringing a desktop machine with simultaneous 5 axis capability, which is something I have been curious about for a while. For my own work the number I care about is the usable 5 axis work area. Most of my prototype parts are small, but once you add fixtures and a few angled features, a tight cube gets frustrating fast. So I started comparing k1 against the two other machines I keep seeing, Xhorse and ifmaker.

From what I can tell, the Xhorse WM 100's giving you roughly a 100 mm cube in 5 axis mode. Ifmaker M5's around 110mm by 95mm. K1's listed at 120 mm cube. None of these are massive by any means, but for the stuff I make, the extra room on the K1 could mean less fighting with awkward setup rebuilds down the line.

I'm not treating any of this as settled. These are still campaign numbers, and the only one I have seen limited cutting footage from is the K1. Xhorse is the one I'm most cautious about. They have been showing previous since last November and backers who put down deposits are still waiting on a ship date, so delivery risk matters to me as much as the spec. Anyone else comparing these?


r/hobbycnc 1d ago

CNC Pattern Generator Update — Same Pattern, Completely Different Results

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9 Upvotes

In this video, I’m showing the pattern generation process directly in CorelDRAW, followed by a 3D visualization in ArtCAM to demonstrate how the generated vectors can look after CNC machining.

I’m just playing around with different parameters in my CNC Pattern Generator and showing how much a single pattern can change.

The same panel can look completely different simply by changing the pattern parameters. And it doesn’t stop there — you can use different machining strategies and different types of cutters on exactly the same vector pattern, which can completely transform the final appearance of the panel.

I’ve also been working on optimizing the generated vectors for actual CNC machining. Curve directions are now automatically alternated where appropriate, so the machine doesn’t have to keep returning to the beginning of the next vector after every pass.

If everything works out, I have an idea to actually CNC-machine some of these new panels. I already have a material in mind that I’d really like to try. Stay tuned for future posts — I think the result is going to look pretty cool.


r/hobbycnc 1d ago

My 3020 Nova accidentally became a manual milling machine

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40 Upvotes

The 3020 Nova has manual handwheels, so sometimes I just use it like a tiny manual mill.
Turns out it works surprisingly well on aluminum.
CNC when I need CNC, handwheels when I just want to remove a little material quickly. Pretty convenient.


r/hobbycnc 1d ago

Tsugami Swiss ejector pin

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1 Upvotes

Trying to figure out why my ejector pin is breaking for my bar feed Swiss, 3/16” stock machines fine but 1/4” stock bends pretty bad after a few pieces so I’d imagine this happened on quarter length is usually 2 3/4”.


r/hobbycnc 1d ago

considering cnc

3 Upvotes

I’m a new Cnc users and considering buying or Onefinity 4x4 foreman and avid 4896. How’s the support for begginers ? Any thoughts?


r/hobbycnc 1d ago

Aspire compute requirements

2 Upvotes

I'm thinking of upgrading into aspire and also am getting a new computer. Has anyone run aspire with the minimum specs from their website and does it work reasonably well or do I actually want to get more processing power?


r/hobbycnc 1d ago

Brand new grbl and grblHAL g-code sender

0 Upvotes

r/hobbycnc 1d ago

CNC wood shop in a small farm

0 Upvotes

I own a farm with 1 acre facing the main road. I also have a CNC router that I use for hobby work. It is 6ft by 8ft. 10 years of experience as a machinist..

I use it also to make kitchen cabinets, sign boards and etc.

I'm thinking about using my CNC as a business/ side hustle. The town population is about 7000 but of course many other small and bigger towns are around.

Do you think a CNC machine shop would be an added value in a farming community?


r/hobbycnc 1d ago

What kind of screen do you want on a woodworking CNC?

3 Upvotes

Just curious, for those of you running CNCs for woodworking:

What kind of screen would you actually want?

  • 10" touchscreen?
  • 13" / 15" touchscreen?
  • Small screen + physical buttons?
  • Touchscreen + jog wheel?
  • Just a laptop/PC?

And what do you actually use the screen for most — jogging, setting zero, loading files, checking toolpaths, starting/pausing jobs, etc.?

If you could change one thing about your current CNC controller, what would it be?


r/hobbycnc 2d ago

Best lube for leadscrews?

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24 Upvotes

I used to use T-9 Boeshield, because once its dry dust and chips really don't stick to it. Then I was recommended to switch to Slickoleum grease, which runs smoother but now EVERYTHING sticks to it.

Whats the happy medium?


r/hobbycnc 2d ago

Upgraded to gSender 1.6.3... Having lots of problems

3 Upvotes

I recently upgraded to gender 1.6.3 and ever since, I have been having multiple errors coming up, whenever I try and run a design.

I use Easel to create the images and I'm using a Genmitsu 4040 Pro machine.

Has anybody else had this issue?


r/hobbycnc 2d ago

Genmitsu Pro max 4040 home

1 Upvotes

I am using Millmage software I have an offline controller option also.

The machine home origin is stuck at the bottom left but everything is saying it is in the top left.

I have been going around in circles trying to figure this out and would greatly appreciate any help.


r/hobbycnc 3d ago

Just about done, time to get the fricken thing made. Here's some pictures of all the different work setup methods you can use.

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40 Upvotes

Possible layouts are:

- zero point plate in front with a vise, a vac pallet or a blank pallet, or a mag chuck

- direct mounting 1 or 2 vises

- direct mounting a table with t slots, vac, mod vise, or blank features

- mounting the index block or 4th axis in the back, with 3 positions depending how much room you need in front

quite flexible.

Also... the atc is done. 6 tools, iso10. Spindle is 60000rpm 2.5kw. Not as much torque as the hsk on the other machine, but still really peppy and fast and has a wide rpm range (most 60k spindles don't run under 15-20k). Plus its "relatively" cheap. :) Max tool length in the atc is 80mm or so. longer tools for special needs (like hitting the table) can be installed manually. You can also drop the spindle for special case where you need to machine the table for example.

The chip pan is an idea, I'm not sure if it will stay. it is a simple closed pan, with a little drain hole, and it takes a vevor 3d printer bag enclosure sitting on top, with the bottom cut out. Great as a cheap enclosure for any material that doesn't spark up.

All in all, pleased with where this has ended up, just need to refine all the small details and get it made now! :)

Thanks for following along.


r/hobbycnc 3d ago

My first homemade CNC

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246 Upvotes

everyone, I’m a complete beginner, and over the past few months I’ve felt like building something.
This is the first version of a very simple CNC machine, mainly to learn.
The components are as follows:
Mechanical:
4040 aluminum extrusions.
10 mm aluminum plates.
12 mm precision-ground rods for the Y axis.
MGN12 linear rails + 4 carriages for the X axis.
Z axis completely 3D-printed in ABS, with 10 mm linear rods.
T8 lead screws from a 3D printer.
Electronics:
MKS DLC32 V2.2
TB6600 drivers
NEMA 17 motors
Cabur 24V 20A power supply
Spindle motor taken from a Bosch drill, 10–48V.
Mechanical NC limit switches
You’ll probably tell me it’s terrible 😂, but since I already had quite a lot of aluminum pieces for the frame at home, as well as some of the components, I spent around €150–200 in total.
I’m looking forward to hearing your criticisms and advice.


r/hobbycnc 2d ago

Status on FOSS ATCs?

6 Upvotes

Hi

So I just saw rapid change release their presale on their rapid change turret, which is cool. But their promo video starts off with him claiming that he "invented impact style tool changing". I get real pissed because there are videos going far back showing impact style style DIY projects on YT. He did refine the design, patent his solution and take it to market which is beneficial since he lowered cost for the CNC community.

But inventing it, he did not.

Here's one example 7 years old, years before Rapid change ATC released:

- https://youtu.be/wO1ZmYXacno?is=GZR3AwixYJl83zj9

So several has identified that after all, these style of impact ATCs relies on a spring and 3d printed parts. Something everyone with a 3d printer should be able to print out for less than $10.

I wonder what the state of the open source/hardware is on ATC? What's the best today? I see more guys trying to sell their designs, but I'm a firm believer this should just be a community design.

I see this one on GitHub called Open ATC. Has Anyone tried it?

https://github.com/sn3ro/OpenATC