diff --git a/app/web/src/components/Customizer/Customizer.tsx b/app/web/src/components/Customizer/Customizer.tsx
index 733a444..8ff5654 100644
--- a/app/web/src/components/Customizer/Customizer.tsx
+++ b/app/web/src/components/Customizer/Customizer.tsx
@@ -14,12 +14,23 @@ import {
 } from './customizerConverter'
 
 const Customizer = () => {
-  const [open, setOpen] = React.useState(false)
   const [shouldLiveUpdate, setShouldLiveUpdate] = React.useState(false)
   const { state, thunkDispatch } = useIdeContext()
+  const isOpen = state.isCustomizerOpen
   const customizerParams = state?.customizerParams
   const currentParameters = state?.currentParameters || {}
   const handleRender = useRender()
+  const toggleOpen = () => {
+    thunkDispatch({ type: 'setCustomizerOpenState', payload: !isOpen })
+    if (state.viewerContext === 'ide') {
+      // don't re-render on open/close in the project profile
+      setTimeout(() => handleRender())
+    }
+  }
+  const handleReset = () => {
+    thunkDispatch({ type: 'resetCustomizer' })
+    setTimeout(() => handleRender(true))
+  }
 
   const updateCustomizerParam = (paramName: string, paramValue: any) => {
     const payload = {
@@ -33,20 +44,20 @@ const Customizer = () => {
   return (
     <div
       className={`absolute inset-x-0 bottom-0 bg-ch-gray-600 bg-opacity-60 text-ch-gray-300 text-lg font-fira-sans ${
-        open ? 'h-full max-h-96' : ''
+        isOpen ? 'h-full max-h-96' : ''
       }`}
     >
       <div className="flex justify-between px-6 py-2 items-center">
         <div className="grid grid-flow-col-dense gap-6 items-center">
-          <button className="px-2" onClick={() => setOpen(!open)}>
+          <button className="px-2" onClick={toggleOpen}>
             <Svg
               name="chevron-down"
-              className={`h-8 w-8 ${!open && 'transform rotate-180'}`}
+              className={`h-8 w-8 ${!isOpen && 'transform rotate-180'}`}
             />
           </button>
           <div>Parameters</div>
         </div>
-        {open && (
+        {isOpen && (
           <>
             <div className="flex items-center">
               <div className="font-fira-sans text-sm mr-4">Auto Update</div>
@@ -66,11 +77,17 @@ const Customizer = () => {
                   } inline-block w-4 h-4 transform bg-white rounded-full`}
                 />
               </Switch>
+              <button
+                className="px-4 py-1 rounded bg-ch-gray-300 text-ch-gray-600 mr-2"
+                onClick={handleReset}
+              >
+                Reset
+              </button>
               <button
                 className={`px-4 py-1 rounded bg-ch-gray-300 text-ch-gray-800 ${
                   shouldLiveUpdate && 'bg-opacity-30 cursor-default'
                 }`}
-                onClick={handleRender}
+                onClick={() => handleRender()}
                 disabled={shouldLiveUpdate}
               >
                 Update
@@ -79,7 +96,9 @@ const Customizer = () => {
           </>
         )}
       </div>
-      <div className={`${open ? 'h-full pb-32' : 'h-0'} overflow-y-auto px-12`}>
+      <div
+        className={`${isOpen ? 'h-full pb-32' : 'h-0'} overflow-y-auto px-12`}
+      >
         <div>
           {customizerParams.map((param, index) => {
             const otherProps = {
diff --git a/app/web/src/components/EncodedUrl/helpers.ts b/app/web/src/components/EncodedUrl/helpers.ts
index e02eae8..88a6c93 100644
--- a/app/web/src/components/EncodedUrl/helpers.ts
+++ b/app/web/src/components/EncodedUrl/helpers.ts
@@ -5,6 +5,7 @@ import { useIdeContext } from 'src/helpers/hooks/useIdeContext'
 import { useRender } from 'src/components/IdeWrapper/useRender'
 import { encode, decode } from 'src/helpers/compress'
 import { isBrowser } from '@redwoodjs/prerender/browserUtils'
+import type { State } from 'src/helpers/hooks/useIdeState'
 
 const scriptKey = 'encoded_script'
 const scriptKeyV2 = 'encoded_script_v2'
@@ -32,13 +33,17 @@ export function makeExternalUrl(resourceUrl: string): string {
   }#${fetchText}=${prepareDecodedUrl(resourceUrl)}`
 }
 
-export function useIdeInit(cadPackage: string, code = '') {
+export function useIdeInit(
+  cadPackage: State['ideType'],
+  code = '',
+  viewerContext: State['viewerContext'] = 'ide'
+) {
   const { thunkDispatch } = useIdeContext()
   const handleRender = useRender()
   useEffect(() => {
     thunkDispatch({
       type: 'initIde',
-      payload: { cadPackage, code },
+      payload: { cadPackage, code, viewerContext },
     })
     if (code) {
       return
diff --git a/app/web/src/components/IdeWrapper/useRender.ts b/app/web/src/components/IdeWrapper/useRender.ts
index 4ac6312..cec3da8 100644
--- a/app/web/src/components/IdeWrapper/useRender.ts
+++ b/app/web/src/components/IdeWrapper/useRender.ts
@@ -3,7 +3,7 @@ import { useIdeContext } from 'src/helpers/hooks/useIdeContext'
 
 export const useRender = () => {
   const { state, thunkDispatch } = useIdeContext()
-  return () => {
+  return (disableParams = false) => {
     thunkDispatch((dispatch, getState) => {
       const state = getState()
       dispatch({ type: 'setLoading' })
@@ -13,7 +13,7 @@ export const useRender = () => {
         code: state.code,
         viewerSize: state.viewerSize,
         camera: state.camera,
-        parameters: state.currentParameters,
+        parameters: disableParams ? {} : state.currentParameters,
       })
     })
     localStorage.setItem(makeCodeStoreKey(state.ideType), state.code)
diff --git a/app/web/src/components/ProjectProfile/ProjectProfile.tsx b/app/web/src/components/ProjectProfile/ProjectProfile.tsx
index 90e454b..75ad9d4 100644
--- a/app/web/src/components/ProjectProfile/ProjectProfile.tsx
+++ b/app/web/src/components/ProjectProfile/ProjectProfile.tsx
@@ -1,4 +1,4 @@
-import { useState, useEffect, useRef, lazy, Suspense } from 'react'
+import { useState, useEffect, useRef } from 'react'
 import { useAuth } from '@redwoodjs/auth'
 import { Link, navigate, routes } from '@redwoodjs/router'
 import Editor from 'rich-markdown-editor'
@@ -15,7 +15,6 @@ import CadPackage from 'src/components/CadPackage/CadPackage'
 import Gravatar from 'src/components/Gravatar/Gravatar'
 import { useIdeInit } from 'src/components/EncodedUrl/helpers'
 import ProfileViewer from '../ProfileViewer/ProfileViewer'
-import Svg from 'src/components/Svg/Svg'
 import OpenscadStaticImageMessage from 'src/components/OpenscadStaticImageMessage/OpenscadStaticImageMessage'
 import KeyValue from 'src/components/KeyValue/KeyValue'
 
@@ -51,7 +50,7 @@ const ProjectProfile = ({
         })
       )
   }, [currentUser])
-  useIdeInit(project?.cadPackage, project?.code)
+  useIdeInit(project?.cadPackage, project?.code, 'viewer')
   const [newDescription, setNewDescription] = useState(project?.description)
   const onDescriptionChange = (description) => setNewDescription(description())
   const onEditSaveClick = () => {
diff --git a/app/web/src/helpers/hooks/useIdeState.ts b/app/web/src/helpers/hooks/useIdeState.ts
index 9a1bf56..81847ae 100644
--- a/app/web/src/helpers/hooks/useIdeState.ts
+++ b/app/web/src/helpers/hooks/useIdeState.ts
@@ -33,6 +33,7 @@ interface EditorModel {
 
 export interface State {
   ideType: 'INIT' | CadPackageType
+  viewerContext: 'ide' | 'viewer'
   ideGuide?: string
   consoleMessages: { type: 'message' | 'error'; message: string; time: Date }[]
   code: string
@@ -45,6 +46,7 @@ export interface State {
   }
   customizerParams: CadhubParams[]
   currentParameters?: RawCustomizerParams
+  isCustomizerOpen: boolean
   layout: any
   camera: {
     dist?: number
@@ -71,6 +73,7 @@ const initialLayout = {
 
 export const initialState: State = {
   ideType: 'INIT',
+  viewerContext: 'ide',
   consoleMessages: [
     { type: 'message', message: 'Initialising', time: new Date() },
   ],
@@ -83,6 +86,7 @@ export const initialState: State = {
     quality: 'low',
   },
   customizerParams: [],
+  isCustomizerOpen: false,
   layout: initialLayout,
   camera: {},
   viewerSize: { width: 0, height: 0 },
@@ -103,17 +107,28 @@ const reducer = (state: State, { type, payload }): State => {
           '',
         ideType: payload.cadPackage,
         ideGuide: initGuideMap[payload.cadPackage],
+        viewerContext: payload.viewerContext,
       }
     case 'updateCode':
       return { ...state, code: payload }
+    case 'resetCustomizer':
+      const resetParameters = {}
+      state.customizerParams.forEach(({ name, initial }) => {
+        resetParameters[name] = initial
+      })
+      return {
+        ...state,
+        currentParameters: resetParameters,
+      }
     case 'healthyRender':
-      const customizerParams: CadhubParams[] = payload.customizerParams || []
       const currentParameters = {}
+
+      const customizerParams: CadhubParams[] = payload.customizerParams || []
       customizerParams.forEach((param) => {
         currentParameters[param.name] =
-          typeof state?.currentParameters?.[param.name] !== 'undefined'
-            ? state?.currentParameters?.[param.name]
-            : param.initial
+          typeof state?.currentParameters?.[param.name] === 'undefined'
+            ? param.initial
+            : state?.currentParameters?.[param.name]
       })
       return {
         ...state,
@@ -143,6 +158,11 @@ const reducer = (state: State, { type, payload }): State => {
         ...state,
         currentParameters: payload,
       }
+    case 'setCustomizerOpenState':
+      return {
+        ...state,
+        isCustomizerOpen: payload,
+      }
     case 'setLayout':
       return {
         ...state,
@@ -292,7 +312,7 @@ export const requestRender = ({
     return renderFn({
       code,
       settings: {
-        parameters,
+        parameters: state.isCustomizerOpen ? parameters : {},
         camera,
         viewerSize,
         quality,