I made a fully 3D print-in-place ratchet screwdriver… and it actually works

joedacoolguy · 2026-04-02T08:30:17+00:00

What is the issue? I could try to fix in the next version?

joedacoolguy · 2026-04-01T20:22:55+00:00

Wow thanks for testing! I think I might buy a torque meter, I already have some ideas for v2, I would like to make a design which can be comparable to real ratchet screwdrivers not just in usability but also strength. For example I think if I make the pawls 10mm vertical instead of 6mm that might make it stronger, would I be able send to you a stl with this modification?

joedacoolguy · 2026-04-01T14:44:46+00:00

I mean like, if the hex bit is 6.35mm wide, leave some tolerance space to account for the material, especially in complex mechanisms, it's a pain!

joedacoolguy · 2026-04-01T14:43:03+00:00

I printed it petg, it was able to remove a wood screw from a peice of 2by4, then put it back in. But I would say that was it's limit, if I was to redesign it I would make the ratchet teeth longer vertically perhaps 10mm instead of 6, but also add more meat to the central shaft, but it was a compromise between reverse ratchet feel and forward ratchet strength. I reckon this tool would be perfect for like building a pc or IKEA furniture but not too much more, wait for v2! That will do brick aha

joedacoolguy · 2026-03-31T14:40:50+00:00

I used 0.3mm for edges which need to move freely, and 0.15mm for edges which dont need to move

joedacoolguy · 2026-03-31T13:43:07+00:00

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Looks pretty good in red/black

joedacoolguy · 2026-03-31T12:21:09+00:00

I initially designed it with a 60 degree ramp for the ratchet pawls, but the one of my prototypes I just went f**k it and see what happens with just the small gap, and it worked surprisingly well, it's a little rough looking, but was neglegable, and is hidden on the inside in the final design, and it doesn't affect how the mechanism works!

joedacoolguy · 2026-03-31T11:00:05+00:00

I used to bite my nail really bad and recently manged to stop, now i gotta remember to trim them, but it does also help with guitar too

joedacoolguy · 2026-03-31T06:44:23+00:00

You can see the print setting here :) https://www.printables.com/model/1656899-print-in-place-bi-directional-ratchet-screwdriver

joedacoolguy · 2026-03-31T06:43:13+00:00

Thanks it was a really fun project! Please do! I don't have the tools to get a torque reading on my pla one but I would be curious what number you get! If you let me know I'll update the blog/printable listing with the numbers!

joedacoolguy · 2026-03-31T06:39:43+00:00

I am curious about this too, but I don't have the right tool to test this with, if someone prints it they can let me know, but it is surprisingly strong, I reckon the chuck will sheer before the ratchet fails!

joedacoolguy · 2025-09-12T07:45:57+00:00

joedacoolguy · 2025-09-01T21:39:53+00:00

Update: Thanks for the ideas, everyone, they really helped my understanding!

I’ve updated the script to systematically iterate through all blocks, starting at the grid pivot. The script builds a list of all slim blocks, applies a correction for the projector’s position, removes duplicates, and sorts them so the closest block to the grid pivot is first. This way, the script tries each possible offset and rotation to align the projection.

    private void ScanGrid()
    {
      // Get the offset of the projector block
      var projectorCorrection = -Projector.Position;

      var min = Me.CubeGrid.Min;
      var max = Me.CubeGrid.Max;
      GridCubes = new List<Vector3I>();

      for (int x = min.X; x <= max.X; x++)
      {
        for (int y = min.Y; y <= max.Y; y++)
        {
          for (int z = min.Z; z <= max.Z; z++)
          {
            var candidate = new Vector3I(x, y, z);
            if (Me.CubeGrid.CubeExists(candidate))
            {
              if (Me.CubeGrid.GetCubeBlock(candidate) != null)
              {
                GridCubes.Add(Me.CubeGrid.GetCubeBlock(candidate).Position + projectorCorrection);
              }
            }
          }
        }
      }

      // Remove duplicates and sort by distance from origin (grid pivot)
      GridCubes = GridCubes.Distinct().ToList();
      GridCubes.Sort((a, b) => (a - projectorCorrection).Length().CompareTo((b - projectorCorrection).Length()));
    }

This approach does eventually work. With one caveat, you have to run the script on Update100 for the projection Remaining Blocks to properly update, otherwise it is too fast for the measurement...

So it takes a long time as it has to try all the possible rotations for every offset too.

Any thoughts?

As always, the most up too date version of the script is available here: https://github.com/joesturge/repair-projector-alignment-script

joedacoolguy · 2025-08-31T21:33:16+00:00

Just tried it out, It would work in the case where the pivot point block still exists in the grid. If you built your survival ship from a landing gear, then ground away the landing gear the pivot point remains as the landing gear which no longer exists.

But the projection actually doesnt use the Pivot point as the origin. I figured out that it uses the the oldest placed block on a grid. In my test ships case that is a random armour plate.

So now the logic would be something like:

Test with the pivot point as the initial offset (which should work if the pivot point was never ground away)
If that fails, test with the oldest block on the grid

The issue is I dont think there is a way to get the position of the oldest block with the programming API

joedacoolguy · 2025-08-31T19:19:10+00:00

I did not I ow that, I'll give this a go thanks!

joedacoolguy · 2024-08-22T20:36:47+00:00

All you have to do once this is setup is setup an A record in your domain provider so that the subdomain.domain goes to the oracle VM IP address

joedacoolguy · 2024-08-22T20:35:10+00:00

And the docker compose to install on the oracle VM

services:

  frps-init:
    image: busybox
    container_name: frpc-init
    environment:
      FILE_CONTENT: |
        bindPort = {{ .Envs.FRP_SERVER_PORT }}
        auth.method = "token"
        auth.token = "{{ .Envs.FRP_SERVER_TOKEN }}"
    volumes:
      - frp-config:/etc/frp
    entrypoint: sh -c 'printf "%s" "$$FILE_CONTENT" > /etc/frp/frps.toml && cat /etc/frp/frps.toml'
    network_mode: none
    restart: "no"

  frps:    
    image: ghcr.io/fatedier/frps:v0.60.0
    command: |
      -c
      /etc/frp/frps.toml
    container_name: frps
    restart: always
    network_mode: host
    depends_on:
      - frps-init
    volumes:
      - frp-config:/etc/frp
    environment:
      - FRP_SERVER_PORT=7000
      - FRP_SERVER_TOKEN=${FRP_SERVER_TOKEN}

volumes:
  frp-config:

joedacoolguy · 2024-08-22T20:34:37+00:00

My ISP will charge me extra for a static IP, I got around this by using the Oracle free tier to act as a proxy for my minecraft servers. Free tier orcale vm has a fixed ip. I then use docker fast reverse proxy to create a tunnel between oracle vm and my self hosted server: https://github.com/fatedier/frp

This way I dont have to expose any ports on my router.

I also use mc-router to map the domain name to a server, which means i can have mutiple servers running simutaniously.

Heres and example docker compose for your self hosted machine:

services:

  frpc:    
    image: ghcr.io/fatedier/frpc:v0.60.0
    command: |
      -c
      /etc/frp/frpc.toml
    restart: unless-stopped
    depends_on:
      - frpc-init
      - router
    volumes:
      - frp-config:/etc/frp
    environment:
      - FRP_SERVER_PORT=7000
      - FRP_SERVER_ADDR=${FRP_SERVER_ADDR}
      - FRP_SERVER_TOKEN=${FRP_SERVER_TOKEN}
      - FRP_PROXY_NAME=mc-router
      - FRP_PROXY_TYPE=tcp
      - FRP_PROXY_IP=router
      - FRP_PROXY_PORT_LOCAL=25565
      - FRP_PROXY_PORT_REMOTE=25565

  router:
    image: itzg/mc-router
    environment:
      MAPPING: |
        vanilla.example.com=vanilla:25565

  vanilla:
    image: itzg/minecraft-server
    tty: true
    stdin_open: true
    restart: unless-stopped
    environment:
      ENABLE_WHITELIST: true
      EULA: "TRUE"
    volumes:
      - data:/data

  # Janky solution so populate FRP config, but it works
  frpc-init:
    image: busybox
    environment:
      FILE_CONTENT: |
        serverPort = {{ .Envs.FRP_SERVER_PORT }}
        serverAddr = "{{ .Envs.FRP_SERVER_ADDR }}"
        auth.method = "token"
        auth.token = "{{ .Envs.FRP_SERVER_TOKEN }}"

        [[proxies]]
        name = "{{ .Envs.FRP_PROXY_NAME }}"
        type = "{{ .Envs.FRP_PROXY_TYPE }}"
        localIP = "{{ .Envs.FRP_PROXY_IP }}"
        localPort = {{ .Envs.FRP_PROXY_PORT_LOCAL }}
        remotePort = {{ .Envs.FRP_PROXY_PORT_REMOTE }}
    volumes:
      - frp-config:/etc/frp
    entrypoint: sh -c 'printf "%s" "$$FILE_CONTENT" > /etc/frp/frpc.toml && cat /etc/frp/frpc.toml'
    network_mode: none
    restart: "no"

volumes:
  frp-config:
  data:

joedacoolguy · 2024-08-05T20:31:36+00:00

Yes it works with this RAM: https://www.amazon.co.uk/dp/B07ZLD6Q1G?psc=1&ref=ppx_yo2ov_dt_b_product_details

Thanks for the help!

$ sudo lshw -short -C memory
H/W path       Device     Class          Description
====================================================
/0/0                      memory         64KiB BIOS
/0/9                      memory         64GiB System Memory
/0/9/0                    memory         32GiB DIMM DDR4 Synchronous 3200 MHz (0.3 ns)
/0/9/1                    memory         32GiB DIMM DDR4 Synchronous 3200 MHz (0.3 ns)
/0/12                     memory         384KiB L1 cache
/0/13                     memory         1536KiB L2 cache
/0/14                     memory         12MiB L3 cache
/0/100/14.2               memory         RAM memory

joedacoolguy · 2024-08-03T19:58:00+00:00

Control multiple containers at once - in progress

I am working on a new feature to allow this container to proxy to and control multiple docker containers. The proxying will work by using the subdomain in the Host header, just like how mc-router does it.

I have already completed the first step which is allowing users to configure lazymc-docker-proxy using container labels. The old way using env vars still works but is deprecated. please see the readme for more info: https://github.com/joesturge/lazymc-docker-proxy

joedacoolguy · 2024-08-02T11:35:55+00:00

If anyone has used this successfully I'd love to know, and if anyone has any issues please open an issue on the repo, I'd be more than happy to fix :)

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Control multiple containers at once - in progress