Share your favourite scripts, macros and plug-ins

[norbert_geelen]

Yes, Rhino help/documentation is top nodge!
Edit: it is even top notch, unlike my orthography.

[Konrad]

Didn’t know about this thread: but here’s a stl export script, I posted separately

Quick Stl-Export Script

Hi, I often find myself exporting a STL file for 3D printing, importing it into the slicer, discovering something that has to change in the file, re-exporting, importing and so on. To make this a bit faster I made a python-script that someone might find useful as well: You can set your export settings and a output directory inside the script. When you export then your file, the script will try to figure out if the object has been exported before and if so it will overwrite the previous file. …

[Rhino_Bulgaria (Bobi)]

Rhino has these two test commands to toggle the wireframe’s visibility:

Icon 32x32:

Text: Toggle control points to front

Tooltip for the left mouse button: Toggle control points to front
Command: TestToggleControlPointsToFront

Tooltip for the right mouse button: Toggle analysis control points
Command: TestToggleAnalysisControlPoints

[Rhino_Bulgaria (Bobi)]

IMPORTANT: First, you have to run the ! _Block command to convert the closed curve profile into a block, then it can be selected as a profile.

Download the Super sweep plug-in from here:
https://www.food4rhino.com/en/app/super-sweep

How to use:

Super sweep plug-in

[yigit]

Hi all,

Just created a script for chamfering surface corners..

ChamferSrfCorner.py (7.8 KB)

It may be usefull on structural modelling..

[Rhino_Bulgaria (Bobi)]

Just posting the similar script for filleting surface corner (also featured in the 1st post), in case that Rhino users want to collect both of these useful scripts:
FIlletSrfCorner.py (9.0 KB)

[Konrad]

here is a powershell script that closes Rhino, builds the grasshopper plugin that you are working on, starts rhino and opens a rhino and grasshopper file

Summary

# Set error preference to stop on the first error.
$ErrorActionPreference = 'Stop'
# Ensure PowerShell console can display UTF-8 characters.
try { [Console]::OutputEncoding = [System.Text.Encoding]::UTF8 } catch {}

# --- User Configuration ---
$Rhino3dmPath   = "PATH_TO_FILE"
$SolutionFolder = "PATH_TO_PROJECT_DIR"
$GrasshopperGH  = "PATH_TO_GRASSHOPPER_FILE"

$RhinoExe       = "C:\Program Files\Rhino 8\System\Rhino.exe"
$Configuration  = "Debug"

# --- Robust Rhino Shutdown ---
Write-Host "==> Closing any running Rhino instances..."
$procs = Get-Process -Name Rhino -ErrorAction SilentlyContinue

if (-not $procs) {
    Write-Host "==> No Rhino instances found to close."
} else {
    foreach ($p in $procs) {
        if ($p.HasExited) { continue }
        Write-Host "--> Attempting to close Rhino PID $($p.Id)..."
        try {
            $p.CloseMainWindow() | Out-Null
            if ($p.WaitForExit(4000)) {
                Write-Host "    ...PID $($p.Id) closed gracefully."
            } else {
                Write-Warning "    ...PID $($p.Id) did not respond. Forcing termination."
                $p.Kill()
                $p.WaitForExit(2000)
                Write-Host "    ...PID $($p.Id) terminated."
            }
        } catch {
            Write-Warning "    ...An error occurred while closing PID $($p.Id): $($_.Exception.Message)"
            try {
                if (-not $p.HasExited) {
                   Write-Warning "    ...Attempting to force-terminate PID $($p.Id) as a fallback."
                   $p.Kill()
                }
            } catch {
                Write-Error "    ...FAILED to terminate PID $($p.Id). It may require manual closing."
            }
        }
    }
    Write-Host "==> Rhino shutdown process complete."
}

# --- Guard clauses to check for file and folder paths ---
if (-not (Test-Path $RhinoExe))       { throw "Rhino.exe not found at: $RhinoExe" }
if (-not (Test-Path $Rhino3dmPath))   { throw "3DM file not found: $Rhino3dmPath" }
if (-not (Test-Path $GrasshopperGH))  { throw "GH file not found: $GrasshopperGH" }
if (-not (Test-Path $SolutionFolder)) { throw "Project/Solution folder not found: $SolutionFolder" }

# --- Build the .NET project ---
Write-Host "==> Building .NET project in $SolutionFolder ..."
$buildOutput = & dotnet build $SolutionFolder -c $Configuration --nologo 2>&1
$exitCode = $LASTEXITCODE

$buildOutput | ForEach-Object { Write-Host $_ }

if ($exitCode -ne 0) {
    Write-Host "==> dotnet build failed (exit code: $exitCode)" -ForegroundColor Red
    throw "Build failed. Please see the errors above."
} else {
    Write-Host "==> Build succeeded."
}

# --- Create RhinoPython bootstrap script ---
Write-Host "==> Writing RhinoPython bootstrap script (UTF-8)..."
$pyPath = Join-Path $env:TEMP 'rhino_bootstrap_gh.py'

$pythonScript = @"
# -*- coding: utf-8 -*-
import Rhino
import rhinoscriptsyntax as rs
import os

rhino_file = os.path.normpath(r"$Rhino3dmPath")
gh_file    = os.path.normpath(r"$GrasshopperGH")

Rhino.RhinoApp.WriteLine("[bootstrap] 3DM Path: {0}".format(rhino_file))
Rhino.RhinoApp.WriteLine("[bootstrap] GH Path : {0}".format(gh_file))

if os.path.exists(rhino_file):
    Rhino.RhinoApp.WriteLine("[bootstrap] Opening 3DM file...")
    Rhino.RhinoApp.RunScript('-_Open "{0}" _Enter'.format(rhino_file), True)
else:
    Rhino.RhinoApp.WriteLine("[bootstrap][WARNING] 3DM file not found. Skipping.")

try:
    Rhino.RhinoApp.WriteLine("[bootstrap] Loading Grasshopper plugin...")
    rs.Command('_Grasshopper', True)
    gh = rs.GetPlugInObject('Grasshopper')
    
    if gh and os.path.exists(gh_file):
        Rhino.RhinoApp.WriteLine("[bootstrap] Opening GH document...")
        gh.OpenDocument(gh_file)
        gh.HideEditor(False)
        gh.Enabled = True
        Rhino.RhinoApp.WriteLine("[bootstrap] Grasshopper document loaded and enabled.")
    elif not gh:
        Rhino.RhinoApp.WriteLine("[bootstrap][ERROR] Could not get Grasshopper plugin object.")
    else:
        Rhino.RhinoApp.WriteLine("[bootstrap][ERROR] GH file not found at: {0}".format(gh_file))

except Exception as e:
    Rhino.RhinoApp.WriteLine("[bootstrap][ERROR] An exception occurred: {0}".format(e))
"@

Set-Content -Path $pyPath -Encoding UTF8 -Value $pythonScript

# --- Launch Rhino ---
$runScriptArg = '/runscript="_-RunPythonScript ""{0}"""' -f $pyPath
$argsList = @('/nosplash', '/notemplate', $runScriptArg)

Write-Host "==> Launching Rhino with arguments:"
Write-Host ("`"$RhinoExe`" " + ($argsList -join ' '))
Start-Process -FilePath $RhinoExe -ArgumentList $argsList

[Rhino_Bulgaria (Bobi)]

Drag strength toggle that aligns to the active Cplane. The LMB command resets the Gumball and turns off the drag strength.

Icon:

Icon inside RAR to preserve the quality:
Drag strength.rar (1.7 KB)

LMB Tooltip:
Drag strength 100%

LMB Command:
!_SetRedrawOff '~_Dragmode _CPlane '_Gumball _On '~_-DragStrength _ShowDialog=No _DragStrength=100 _Enter '~_GumballAlignment _CPlane '_EnterEnd _SetRedrawOn

RMB Tooltip:
Drag strength 10%

RMB Command:
!_SetRedrawOff '~_Dragmode _CPlane '_Gumball _On '~_-DragStrength _ShowDialog=Yes _DragStrength=10 _Enter '~_GumballAlignment _CPlane '_EnterEnd _SetRedrawOn

P.S. You can set a different percentage for the RMB command in case that the 10% are too fast for you.

---

Move UVN toggle that aligns the Gumball to the object.

Icon:

Icons inside RAR to preserve the quality (two icons: 2% and 5%):
Move UVN 2.rar (2.3 KB)

LMB Tooltip:
Move UVN 100%

LMB Command:
!_SetRedrawOff '~_Dragmode _UVN '_Gumball _On '~_-DragStrength _ShowDialog=No _DragStrength=100 _Enter '~_GumballAlignment Object '_EnterEnd _SetRedrawOn

RMB Tooltip:
Move UVN 2%

RMB Command:
!_SetRedrawOff '~_Dragmode _UVN '_Gumball _On '~_-DragStrength _ShowDialog=Yes _DragStrength=2 _Enter '~_GumballAlignment Object '_EnterEnd _SetRedrawOn