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Helical

Helical is a library for Cadova that simplifies the creation of threaded components and related parts. It supports widely-used metric threads, bolts, and nuts, as well as the ability to customize these components to fit specific requirements.

Bolts demo · Nuts and washers demo

Installation

Integrate Helical into your project with the Swift Package Manager by adding it as a dependency in your Package.swift file:

.package(url:"https://github.com/tomasf/Helical.git", from:"1.0.0")

Then, import Helical where it's needed:

import Helical

Usage

Standard Components

Helical simplifies the process of creating threaded shapes, making it easier to incorporate threaded holes into your models. It also provides a selection of standard bolts, nuts, and corresponding holes. Creating a typical M8x20 hex head bolt is simple:

Bolt.hexHead(.m8, length:20, unthreadedLength:5)

This generates a standard DIN 931 bolt, as expected.

Customizing Components

Beyond the standard offerings, Helical allows for modifications to fit unique requirements:

Bolt.hexHead(.isoMetric(.m8, pitch:0.75),
headWidth:15,
headHeight:6.5,
length:20)

Or fully customize parts to your specific needs:

letthread=ScrewThread(
handedness:.left,
starts:2,
pitch:1.5,
majorDiameter:6.2,
minorDiameter:5.3,
form:.trapezoidal(angle:90°, crestWidth:0.25))letcustomBolt=Bolt(
thread: thread,
length:15,
unthreadedLength:3,
unthreadedDiameter:5,
headShape:.countersunk(angle:80°, topDiameter:10, boltDiameter:5),
socket:.slot(length:10, width:1, depth:1.4))

Holes

Creating a matching countersunk clearance hole for a bolt is straightforward:

Box(13).aligned(at:.centerXY).subtracting{
customBolt.clearanceHole(entry:.recessedHead)}

As is making a threaded hole for a particular thread:

Box(13).aligned(at:.centerXY).subtracting{ThreadedHole(thread: thread, depth:13, leadIns:.both)}

Lead-In Chamfers

LeadIn and LeadInEnds provide a unified way to add thread-entry chamfers to screws, threaded holes, and nuts. Size can be specified relative to thread depth, pitch, or cone angle, or as explicit dimensions:

Screw(thread:.isoMetric(.m6), length:20, leadIns:.both(.standard))Nut(thread:.isoMetric(.m6), shape: body, leadIns:.both(.angle(120°)))

Behavior

Helical uses Cadova's tolerance environment setting to increase the diameter of holes and decrease the diameter of bolts. Clearance holes can create overhang-safe shapes. Specify a circular overhang method (circularOverhangMethod) to enable this.

.withCircularOverhangMethod(.bridge).withTolerance(0.5)

Contributing

We welcome contributions. Feel free to open issues for feedback or suggestions and submit pull requests for improvements to the codebase.

About

A Cadova library providing customizable threads, screws, bolts, nuts and related parts.

Topics

boltcadovafastenersscrewthreads

Resources

Readme
MIT license
Activity

Stars

23 stars

Watchers

5 watching

Forks

0 forks
Report repository

Releases

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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Helical
Helical is a library for Cadova that simplifies the creation of threaded components and related parts. It supports widely-used metric threads, bolts, and nuts, as well as the ability to customize these components to fit specific requirements.
Bolts demo · Nuts and washers demo
Installation
Integrate Helical into your project with the Swift Package Manager by adding it as a dependency in your Package.swift file:
.package(url:"https://github.com/tomasf/Helical.git", from:"1.0.0")
Then, import Helical where it's needed:
import Helical
Usage
Standard Components
Helical simplifies the process of creating threaded shapes, making it easier to incorporate threaded holes into your models. It also provides a selection of standard bolts, nuts, and corresponding holes. Creating a typical M8x20 hex head bolt is simple:
Bolt.hexHead(.m8, length:20, unthreadedLength:5)
This generates a standard DIN 931 bolt, as expected.
Customizing Components
Beyond the standard offerings, Helical allows for modifications to fit unique requirements:
Bolt.hexHead(.isoMetric(.m8, pitch:0.75),
headWidth:15,
headHeight:6.5,
length:20)
Or fully customize parts to your specific needs:
letthread=ScrewThread(
handedness:.left,
starts:2,
pitch:1.5,
majorDiameter:6.2,
minorDiameter:5.3,
form:.trapezoidal(angle:90°, crestWidth:0.25))letcustomBolt=Bolt(
thread: thread,
length:15,
unthreadedLength:3,
unthreadedDiameter:5,
headShape:.countersunk(angle:80°, topDiameter:10, boltDiameter:5),
socket:.slot(length:10, width:1, depth:1.4))
Holes
Creating a matching countersunk clearance hole for a bolt is straightforward:
Box(13).aligned(at:.centerXY).subtracting{
customBolt.clearanceHole(entry:.recessedHead)}
As is making a threaded hole for a particular thread:
Box(13).aligned(at:.centerXY).subtracting{ThreadedHole(thread: thread, depth:13, leadIns:.both)}
Lead-In Chamfers
LeadIn and LeadInEnds provide a unified way to add thread-entry chamfers to screws, threaded holes, and nuts. Size can be specified relative to thread depth, pitch, or cone angle, or as explicit dimensions:
Screw(thread:.isoMetric(.m6), length:20, leadIns:.both(.standard))Nut(thread:.isoMetric(.m6), shape: body, leadIns:.both(.angle(120°)))
Behavior
Helical uses Cadova's tolerance environment setting to increase the diameter of holes and decrease the diameter of bolts. Clearance holes can create overhang-safe shapes. Specify a circular overhang method (circularOverhangMethod) to enable this.
.withCircularOverhangMethod(.bridge).withTolerance(0.5)

Contributing
We welcome contributions. Feel free to open issues for feedback or suggestions and submit pull requests for improvements to the codebase.
About
A Cadova library providing customizable threads, screws, bolts, nuts and related parts.
Topics
boltcadovafastenersscrewthreads
Resources
Readme
MIT license
Activity
Stars
23 stars
Watchers
5 watching
Forks
0 forks
Report repository
Releases
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
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Helical
Helical is a library for Cadova that simplifies the creation of threaded components and related parts. It supports widely-used metric threads, bolts, and nuts, as well as the ability to customize these components to fit specific requirements.
Bolts demo · Nuts and washers demo
Installation
Integrate Helical into your project with the Swift Package Manager by adding it as a dependency in your Package.swift file:
.package(url:"https://github.com/tomasf/Helical.git", from:"1.0.0")
Then, import Helical where it's needed:
import Helical
Usage
Standard Components
Helical simplifies the process of creating threaded shapes, making it easier to incorporate threaded holes into your models. It also provides a selection of standard bolts, nuts, and corresponding holes. Creating a typical M8x20 hex head bolt is simple:
Bolt.hexHead(.m8, length:20, unthreadedLength:5)
This generates a standard DIN 931 bolt, as expected.
Customizing Components
Beyond the standard offerings, Helical allows for modifications to fit unique requirements:
Bolt.hexHead(.isoMetric(.m8, pitch:0.75),
headWidth:15,
headHeight:6.5,
length:20)
Or fully customize parts to your specific needs:
letthread=ScrewThread(
handedness:.left,
starts:2,
pitch:1.5,
majorDiameter:6.2,
minorDiameter:5.3,
form:.trapezoidal(angle:90°, crestWidth:0.25))letcustomBolt=Bolt(
thread: thread,
length:15,
unthreadedLength:3,
unthreadedDiameter:5,
headShape:.countersunk(angle:80°, topDiameter:10, boltDiameter:5),
socket:.slot(length:10, width:1, depth:1.4))
Holes
Creating a matching countersunk clearance hole for a bolt is straightforward:
Box(13).aligned(at:.centerXY).subtracting{
customBolt.clearanceHole(entry:.recessedHead)}
As is making a threaded hole for a particular thread:
Box(13).aligned(at:.centerXY).subtracting{ThreadedHole(thread: thread, depth:13, leadIns:.both)}
Lead-In Chamfers
LeadIn and LeadInEnds provide a unified way to add thread-entry chamfers to screws, threaded holes, and nuts. Size can be specified relative to thread depth, pitch, or cone angle, or as explicit dimensions:
Screw(thread:.isoMetric(.m6), length:20, leadIns:.both(.standard))Nut(thread:.isoMetric(.m6), shape: body, leadIns:.both(.angle(120°)))
Behavior
Helical uses Cadova's tolerance environment setting to increase the diameter of holes and decrease the diameter of bolts. Clearance holes can create overhang-safe shapes. Specify a circular overhang method (circularOverhangMethod) to enable this.
.withCircularOverhangMethod(.bridge).withTolerance(0.5)

Contributing
We welcome contributions. Feel free to open issues for feedback or suggestions and submit pull requests for improvements to the codebase.
About
A Cadova library providing customizable threads, screws, bolts, nuts and related parts.
Topics
boltcadovafastenersscrewthreads
Resources
Readme
MIT license
Activity
Stars
23 stars
Watchers
5 watching
Forks
0 forks
Report repository
Releases
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
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Helical
Helical is a library for Cadova that simplifies the creation of threaded components and related parts. It supports widely-used metric threads, bolts, and nuts, as well as the ability to customize these components to fit specific requirements.
Bolts demo · Nuts and washers demo
Installation
Integrate Helical into your project with the Swift Package Manager by adding it as a dependency in your Package.swift file:
.package(url:"https://github.com/tomasf/Helical.git", from:"1.0.0")
Then, import Helical where it's needed:
import Helical
Usage
Standard Components
Helical simplifies the process of creating threaded shapes, making it easier to incorporate threaded holes into your models. It also provides a selection of standard bolts, nuts, and corresponding holes. Creating a typical M8x20 hex head bolt is simple:
Bolt.hexHead(.m8, length:20, unthreadedLength:5)
This generates a standard DIN 931 bolt, as expected.
Customizing Components
Beyond the standard offerings, Helical allows for modifications to fit unique requirements:
Bolt.hexHead(.isoMetric(.m8, pitch:0.75),
headWidth:15,
headHeight:6.5,
length:20)
Or fully customize parts to your specific needs:
letthread=ScrewThread(
handedness:.left,
starts:2,
pitch:1.5,
majorDiameter:6.2,
minorDiameter:5.3,
form:.trapezoidal(angle:90°, crestWidth:0.25))letcustomBolt=Bolt(
thread: thread,
length:15,
unthreadedLength:3,
unthreadedDiameter:5,
headShape:.countersunk(angle:80°, topDiameter:10, boltDiameter:5),
socket:.slot(length:10, width:1, depth:1.4))
Holes
Creating a matching countersunk clearance hole for a bolt is straightforward:
Box(13).aligned(at:.centerXY).subtracting{
customBolt.clearanceHole(entry:.recessedHead)}
As is making a threaded hole for a particular thread:
Box(13).aligned(at:.centerXY).subtracting{ThreadedHole(thread: thread, depth:13, leadIns:.both)}
Lead-In Chamfers
LeadIn and LeadInEnds provide a unified way to add thread-entry chamfers to screws, threaded holes, and nuts. Size can be specified relative to thread depth, pitch, or cone angle, or as explicit dimensions:
Screw(thread:.isoMetric(.m6), length:20, leadIns:.both(.standard))Nut(thread:.isoMetric(.m6), shape: body, leadIns:.both(.angle(120°)))
Behavior
Helical uses Cadova's tolerance environment setting to increase the diameter of holes and decrease the diameter of bolts. Clearance holes can create overhang-safe shapes. Specify a circular overhang method (circularOverhangMethod) to enable this.
.withCircularOverhangMethod(.bridge).withTolerance(0.5)

Contributing
We welcome contributions. Feel free to open issues for feedback or suggestions and submit pull requests for improvements to the codebase.
About
A Cadova library providing customizable threads, screws, bolts, nuts and related parts.
Topics
boltcadovafastenersscrewthreads
Resources
Readme
MIT license
Activity
Stars
23 stars
Watchers
5 watching
Forks
0 forks
Report repository
Releases
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

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Helical
Helical is a library for Cadova that simplifies the creation of threaded components and related parts. It supports widely-used metric threads, bolts, and nuts, as well as the ability to customize these components to fit specific requirements.
Bolts demo · Nuts and washers demo
Installation
Integrate Helical into your project with the Swift Package Manager by adding it as a dependency in your Package.swift file:
.package(url:"https://github.com/tomasf/Helical.git", from:"1.0.0")
Then, import Helical where it's needed:
import Helical
Usage
Standard Components
Helical simplifies the process of creating threaded shapes, making it easier to incorporate threaded holes into your models. It also provides a selection of standard bolts, nuts, and corresponding holes. Creating a typical M8x20 hex head bolt is simple:
Bolt.hexHead(.m8, length:20, unthreadedLength:5)
This generates a standard DIN 931 bolt, as expected.
Customizing Components
Beyond the standard offerings, Helical allows for modifications to fit unique requirements:
Bolt.hexHead(.isoMetric(.m8, pitch:0.75),
headWidth:15,
headHeight:6.5,
length:20)
Or fully customize parts to your specific needs:
letthread=ScrewThread(
handedness:.left,
starts:2,
pitch:1.5,
majorDiameter:6.2,
minorDiameter:5.3,
form:.trapezoidal(angle:90°, crestWidth:0.25))letcustomBolt=Bolt(
thread: thread,
length:15,
unthreadedLength:3,
unthreadedDiameter:5,
headShape:.countersunk(angle:80°, topDiameter:10, boltDiameter:5),
socket:.slot(length:10, width:1, depth:1.4))
Holes
Creating a matching countersunk clearance hole for a bolt is straightforward:
Box(13).aligned(at:.centerXY).subtracting{
customBolt.clearanceHole(entry:.recessedHead)}
As is making a threaded hole for a particular thread:
Box(13).aligned(at:.centerXY).subtracting{ThreadedHole(thread: thread, depth:13, leadIns:.both)}
Lead-In Chamfers
LeadIn and LeadInEnds provide a unified way to add thread-entry chamfers to screws, threaded holes, and nuts. Size can be specified relative to thread depth, pitch, or cone angle, or as explicit dimensions:
Screw(thread:.isoMetric(.m6), length:20, leadIns:.both(.standard))Nut(thread:.isoMetric(.m6), shape: body, leadIns:.both(.angle(120°)))
Behavior
Helical uses Cadova's tolerance environment setting to increase the diameter of holes and decrease the diameter of bolts. Clearance holes can create overhang-safe shapes. Specify a circular overhang method (circularOverhangMethod) to enable this.
.withCircularOverhangMethod(.bridge).withTolerance(0.5)

Contributing
We welcome contributions. Feel free to open issues for feedback or suggestions and submit pull requests for improvements to the codebase.
About
A Cadova library providing customizable threads, screws, bolts, nuts and related parts.
Topics
boltcadovafastenersscrewthreads
Resources
Readme
MIT license
Activity
Stars
23 stars
Watchers
5 watching
Forks
0 forks
Report repository
Releases
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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Helical
Helical is a library for Cadova that simplifies the creation of threaded components and related parts. It supports widely-used metric threads, bolts, and nuts, as well as the ability to customize these components to fit specific requirements.
Bolts demo · Nuts and washers demo
Installation
Integrate Helical into your project with the Swift Package Manager by adding it as a dependency in your Package.swift file:
.package(url:"https://github.com/tomasf/Helical.git", from:"1.0.0")
Then, import Helical where it's needed:
import Helical
Usage
Standard Components
Helical simplifies the process of creating threaded shapes, making it easier to incorporate threaded holes into your models. It also provides a selection of standard bolts, nuts, and corresponding holes. Creating a typical M8x20 hex head bolt is simple:
Bolt.hexHead(.m8, length:20, unthreadedLength:5)
This generates a standard DIN 931 bolt, as expected.
Customizing Components
Beyond the standard offerings, Helical allows for modifications to fit unique requirements:
Bolt.hexHead(.isoMetric(.m8, pitch:0.75),
headWidth:15,
headHeight:6.5,
length:20)
Or fully customize parts to your specific needs:
letthread=ScrewThread(
handedness:.left,
starts:2,
pitch:1.5,
majorDiameter:6.2,
minorDiameter:5.3,
form:.trapezoidal(angle:90°, crestWidth:0.25))letcustomBolt=Bolt(
thread: thread,
length:15,
unthreadedLength:3,
unthreadedDiameter:5,
headShape:.countersunk(angle:80°, topDiameter:10, boltDiameter:5),
socket:.slot(length:10, width:1, depth:1.4))
Holes
Creating a matching countersunk clearance hole for a bolt is straightforward:
Box(13).aligned(at:.centerXY).subtracting{
customBolt.clearanceHole(entry:.recessedHead)}
As is making a threaded hole for a particular thread:
Box(13).aligned(at:.centerXY).subtracting{ThreadedHole(thread: thread, depth:13, leadIns:.both)}
Lead-In Chamfers
LeadIn and LeadInEnds provide a unified way to add thread-entry chamfers to screws, threaded holes, and nuts. Size can be specified relative to thread depth, pitch, or cone angle, or as explicit dimensions:
Screw(thread:.isoMetric(.m6), length:20, leadIns:.both(.standard))Nut(thread:.isoMetric(.m6), shape: body, leadIns:.both(.angle(120°)))
Behavior
Helical uses Cadova's tolerance environment setting to increase the diameter of holes and decrease the diameter of bolts. Clearance holes can create overhang-safe shapes. Specify a circular overhang method (circularOverhangMethod) to enable this.
.withCircularOverhangMethod(.bridge).withTolerance(0.5)

Contributing
We welcome contributions. Feel free to open issues for feedback or suggestions and submit pull requests for improvements to the codebase.
About
A Cadova library providing customizable threads, screws, bolts, nuts and related parts.
Topics
boltcadovafastenersscrewthreads
Resources
Readme
MIT license
Activity
Stars
23 stars
Watchers
5 watching
Forks
0 forks
Report repository
Releases
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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Helical
Helical is a library for Cadova that simplifies the creation of threaded components and related parts. It supports widely-used metric threads, bolts, and nuts, as well as the ability to customize these components to fit specific requirements.
Bolts demo · Nuts and washers demo
Installation
Integrate Helical into your project with the Swift Package Manager by adding it as a dependency in your Package.swift file:
.package(url:"https://github.com/tomasf/Helical.git", from:"1.0.0")
Then, import Helical where it's needed:
import Helical
Usage
Standard Components
Helical simplifies the process of creating threaded shapes, making it easier to incorporate threaded holes into your models. It also provides a selection of standard bolts, nuts, and corresponding holes. Creating a typical M8x20 hex head bolt is simple:
Bolt.hexHead(.m8, length:20, unthreadedLength:5)
This generates a standard DIN 931 bolt, as expected.
Customizing Components
Beyond the standard offerings, Helical allows for modifications to fit unique requirements:
Bolt.hexHead(.isoMetric(.m8, pitch:0.75),
headWidth:15,
headHeight:6.5,
length:20)
Or fully customize parts to your specific needs:
letthread=ScrewThread(
handedness:.left,
starts:2,
pitch:1.5,
majorDiameter:6.2,
minorDiameter:5.3,
form:.trapezoidal(angle:90°, crestWidth:0.25))letcustomBolt=Bolt(
thread: thread,
length:15,
unthreadedLength:3,
unthreadedDiameter:5,
headShape:.countersunk(angle:80°, topDiameter:10, boltDiameter:5),
socket:.slot(length:10, width:1, depth:1.4))
Holes
Creating a matching countersunk clearance hole for a bolt is straightforward:
Box(13).aligned(at:.centerXY).subtracting{
customBolt.clearanceHole(entry:.recessedHead)}
As is making a threaded hole for a particular thread:
Box(13).aligned(at:.centerXY).subtracting{ThreadedHole(thread: thread, depth:13, leadIns:.both)}
Lead-In Chamfers
LeadIn and LeadInEnds provide a unified way to add thread-entry chamfers to screws, threaded holes, and nuts. Size can be specified relative to thread depth, pitch, or cone angle, or as explicit dimensions:
Screw(thread:.isoMetric(.m6), length:20, leadIns:.both(.standard))Nut(thread:.isoMetric(.m6), shape: body, leadIns:.both(.angle(120°)))
Behavior
Helical uses Cadova's tolerance environment setting to increase the diameter of holes and decrease the diameter of bolts. Clearance holes can create overhang-safe shapes. Specify a circular overhang method (circularOverhangMethod) to enable this.
.withCircularOverhangMethod(.bridge).withTolerance(0.5)

Contributing
We welcome contributions. Feel free to open issues for feedback or suggestions and submit pull requests for improvements to the codebase.
About
A Cadova library providing customizable threads, screws, bolts, nuts and related parts.
Topics
boltcadovafastenersscrewthreads
Resources
Readme
MIT license
Activity
Stars
23 stars
Watchers
5 watching
Forks
0 forks
Report repository
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Used by
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Languages

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injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
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Helical
Helical is a library for Cadova that simplifies the creation of threaded components and related parts. It supports widely-used metric threads, bolts, and nuts, as well as the ability to customize these components to fit specific requirements.
Bolts demo · Nuts and washers demo
Installation
Integrate Helical into your project with the Swift Package Manager by adding it as a dependency in your Package.swift file:
.package(url:"https://github.com/tomasf/Helical.git", from:"1.0.0")
Then, import Helical where it's needed:
import Helical
Usage
Standard Components
Helical simplifies the process of creating threaded shapes, making it easier to incorporate threaded holes into your models. It also provides a selection of standard bolts, nuts, and corresponding holes. Creating a typical M8x20 hex head bolt is simple:
Bolt.hexHead(.m8, length:20, unthreadedLength:5)
This generates a standard DIN 931 bolt, as expected.
Customizing Components
Beyond the standard offerings, Helical allows for modifications to fit unique requirements:
Bolt.hexHead(.isoMetric(.m8, pitch:0.75),
headWidth:15,
headHeight:6.5,
length:20)
Or fully customize parts to your specific needs:
letthread=ScrewThread(
handedness:.left,
starts:2,
pitch:1.5,
majorDiameter:6.2,
minorDiameter:5.3,
form:.trapezoidal(angle:90°, crestWidth:0.25))letcustomBolt=Bolt(
thread: thread,
length:15,
unthreadedLength:3,
unthreadedDiameter:5,
headShape:.countersunk(angle:80°, topDiameter:10, boltDiameter:5),
socket:.slot(length:10, width:1, depth:1.4))
Holes
Creating a matching countersunk clearance hole for a bolt is straightforward:
Box(13).aligned(at:.centerXY).subtracting{
customBolt.clearanceHole(entry:.recessedHead)}
As is making a threaded hole for a particular thread:
Box(13).aligned(at:.centerXY).subtracting{ThreadedHole(thread: thread, depth:13, leadIns:.both)}
Lead-In Chamfers
LeadIn and LeadInEnds provide a unified way to add thread-entry chamfers to screws, threaded holes, and nuts. Size can be specified relative to thread depth, pitch, or cone angle, or as explicit dimensions:
Screw(thread:.isoMetric(.m6), length:20, leadIns:.both(.standard))Nut(thread:.isoMetric(.m6), shape: body, leadIns:.both(.angle(120°)))
Behavior
Helical uses Cadova's tolerance environment setting to increase the diameter of holes and decrease the diameter of bolts. Clearance holes can create overhang-safe shapes. Specify a circular overhang method (circularOverhangMethod) to enable this.
.withCircularOverhangMethod(.bridge).withTolerance(0.5)

Contributing
We welcome contributions. Feel free to open issues for feedback or suggestions and submit pull requests for improvements to the codebase.
About
A Cadova library providing customizable threads, screws, bolts, nuts and related parts.
Topics
boltcadovafastenersscrewthreads
Resources
Readme
MIT license
Activity
Stars
23 stars
Watchers
5 watching
Forks
0 forks
Report repository
Releases
Used by
Contributors
Languages