diff --git a/api/src/docker/aws-emulator.js b/api/src/docker/aws-emulator.js
index 9885cc1..fae018d 100644
--- a/api/src/docker/aws-emulator.js
+++ b/api/src/docker/aws-emulator.js
@@ -1,6 +1,7 @@
 const express = require('express')
 var cors = require('cors')
 const axios = require('axios')
+const { restart } = require('nodemon')
 const app = express()
 const port = 8080
 app.use(express.json())
@@ -10,19 +11,29 @@ const invocationURL = (port) =>
   `http://localhost:${port}/2015-03-31/functions/function/invocations`
 
 app.post('/openscad/preview', async (req, res) => {
-  const { data } = await axios.post(invocationURL(5052), {
-    body: Buffer.from(JSON.stringify(req.body)).toString('base64'),
-  })
-  res.status(data.statusCode)
-  res.send(data.body)
+  try {
+    const { data } = await axios.post(invocationURL(5052), {
+      body: Buffer.from(JSON.stringify(req.body)).toString('base64'),
+    })
+    res.status(data.statusCode)
+    res.send(data.body)
+  } catch (e) {
+    res.status(500)
+    res.send()
+  }
 })
 app.post('/cadquery/stl', async (req, res) => {
   console.log('making post request to 5060')
-  const { data } = await axios.post(invocationURL(5060), {
-    body: Buffer.from(JSON.stringify(req.body)).toString('base64'),
-  })
-  res.status(data.statusCode)
-  res.send(data.body)
+  try {
+    const { data } = await axios.post(invocationURL(5060), {
+      body: Buffer.from(JSON.stringify(req.body)).toString('base64'),
+    })
+    res.status(data.statusCode)
+    res.send(data.body)
+  } catch (e) {
+    res.status(500)
+    res.send()
+  }
 })
 
 app.listen(port, () => {
diff --git a/web/package.json b/web/package.json
index 1c627c8..7aa3247 100644
--- a/web/package.json
+++ b/web/package.json
@@ -13,6 +13,7 @@
     ]
   },
   "dependencies": {
+    "@headlessui/react": "^1.0.0",
     "@material-ui/core": "^4.11.0",
     "@monaco-editor/react": "^4.0.11",
     "@redwoodjs/auth": "^0.30.1",
diff --git a/web/src/Routes.js b/web/src/Routes.js
index dd9d3dc..e7ec58d 100644
--- a/web/src/Routes.js
+++ b/web/src/Routes.js
@@ -35,7 +35,7 @@ const Routes = () => {
   )
   return (
     <Router>
-      <Route path="/dev-ide" page={DevIdePage} name="devIde" />
+      <Route path="/dev-ide/{cadPackage}" page={DevIdePage} name="devIde" />
       <Route path="/policies/privacy-policy" page={PrivacyPolicyPage} name="privacyPolicy" />
       <Route path="/policies/code-of-conduct" page={CodeOfConductPage} name="codeOfConduct" />
       <Route path="/account-recovery/update-password" page={UpdatePasswordPage} name="updatePassword" />
diff --git a/web/src/components/IdeEditor/IdeEditor.js b/web/src/components/IdeEditor/IdeEditor.js
index bbc0edd..498ba9d 100644
--- a/web/src/components/IdeEditor/IdeEditor.js
+++ b/web/src/components/IdeEditor/IdeEditor.js
@@ -12,25 +12,6 @@ const IdeEditor = () => {
     openScad: 'cpp',
   }
 
-  const scriptKey = 'encoded_script'
-  useEffect(() => {
-    // load code from hash if it's there
-    let hash
-    if (isBrowser) {
-      hash = window.location.hash
-    }
-    const [key, scriptBase64] = hash.slice(1).split('=')
-    if (key === scriptKey) {
-      const script = atob(scriptBase64)
-      thunkDispatch({ type: 'updateCode', payload: script })
-    }
-  }, [])
-  useEffect(() => {
-    if (isBrowser) {
-      window.location.hash = ''
-    }
-  }, [state.code])
-
   function handleCodeChange(value, _event) {
     thunkDispatch({ type: 'updateCode', payload: value })
   }
@@ -61,6 +42,7 @@ const IdeEditor = () => {
       <Suspense fallback={<div>. . . loading</div>}>
         <Editor
           defaultValue={state.code}
+          value={state.code}
           // TODO #247 cpp seems better than js for the time being
           defaultLanguage={ideTypeToLanguageMap[state.ideType] || 'cpp'}
           language={ideTypeToLanguageMap[state.ideType] || 'cpp'}
diff --git a/web/src/components/IdeToolbarNew/IdeToolbarNew.js b/web/src/components/IdeToolbarNew/IdeToolbarNew.js
index fa10a77..abc90c5 100644
--- a/web/src/components/IdeToolbarNew/IdeToolbarNew.js
+++ b/web/src/components/IdeToolbarNew/IdeToolbarNew.js
@@ -1,4 +1,4 @@
-import { createContext } from 'react'
+import { createContext, useEffect } from 'react'
 import IdeContainer from 'src/components/IdeContainer'
 import { isBrowser } from '@redwoodjs/prerender/browserUtils'
 import { useIdeState, codeStorageKey } from 'src/helpers/hooks/useIdeState'
@@ -6,11 +6,27 @@ import { copyTextToClipboard } from 'src/helpers/clipboard'
 import { requestRender } from 'src/helpers/hooks/useIdeState'
 
 export const IdeContext = createContext()
-const IdeToolbarNew = () => {
+const IdeToolbarNew = ({ cadPackage }) => {
   const [state, thunkDispatch] = useIdeState()
-  function setIdeType(ide) {
-    thunkDispatch({ type: 'setIdeType', payload: { message: ide } })
-  }
+  const scriptKey = 'encoded_script'
+  useEffect(() => {
+    thunkDispatch({
+      type: 'initIde',
+      payload: { cadPackage },
+    })
+    // load code from hash if it's there
+    let hash
+    if (isBrowser) {
+      hash = window.location.hash
+    }
+    const [key, scriptBase64] = hash.slice(1).split('=')
+    if (key === scriptKey) {
+      const script = atob(scriptBase64)
+      thunkDispatch({ type: 'updateCode', payload: script })
+    }
+    window.location.hash = ''
+    setTimeout(() => handleRender()) // definitely a little hacky, timeout with no delay is just to push it into the next event loop.
+  }, [cadPackage])
   function handleRender() {
     thunkDispatch((dispatch, getState) => {
       const state = getState()
@@ -37,14 +53,6 @@ const IdeToolbarNew = () => {
     <IdeContext.Provider value={{ state, thunkDispatch: thunkDispatch }}>
       <div className="h-full flex flex-col">
         <nav className="flex">
-          <button
-            onClick={() =>
-              setIdeType(state.ideType === 'openScad' ? 'cadQuery' : 'openScad')
-            }
-            className="p-2 br-2 border-2 m-2 bg-blue-200"
-          >
-            Switch to {state.ideType === 'openScad' ? 'CadQuery' : 'OpenSCAD'}
-          </button>
           <button onClick={handleRender} className="p-2 br-2 border-2 m-2">
             Render
           </button>
diff --git a/web/src/components/NavPlusButton/NavPlusButton.tsx b/web/src/components/NavPlusButton/NavPlusButton.tsx
new file mode 100644
index 0000000..edd27f9
--- /dev/null
+++ b/web/src/components/NavPlusButton/NavPlusButton.tsx
@@ -0,0 +1,48 @@
+import { Link, routes } from '@redwoodjs/router'
+import Svg from 'src/components/Svg/Svg'
+import { Popover } from '@headlessui/react'
+
+const NavPlusButton: React.FC = () => {
+  return (
+    <Popover className="relative outline-none w-full h-full">
+      <Popover.Button className="h-full w-full outline-none">
+        <Svg name="plus" className="text-indigo-300" />
+      </Popover.Button>
+
+      <Popover.Panel className="absolute z-10">
+        <ul className="bg-gray-200 mt-4 rounded shadow-md overflow-hidden">
+          {[
+            {
+              name: 'OpenSCAD',
+              sub: 'beta',
+              ideType: 'openScad',
+            },
+            { name: 'CadQuery', sub: 'beta', ideType: 'cadQuery' },
+            {
+              name: 'CascadeStudio',
+              sub: 'soon to be deprecated',
+            },
+          ].map(({ name, sub, ideType }) => (
+            <li
+              key={name}
+              className="px-4 py-2 hover:bg-gray-400 text-gray-800"
+            >
+              <Link
+                to={
+                  name === 'CascadeStudio'
+                    ? routes.draftPart()
+                    : routes.devIde({ cadPackage: ideType })
+                }
+              >
+                <div>{name}</div>
+                <div className="text-xs text-gray-600 font-light">{sub}</div>
+              </Link>
+            </li>
+          ))}
+        </ul>
+      </Popover.Panel>
+    </Popover>
+  )
+}
+
+export default NavPlusButton
diff --git a/web/src/helpers/cadPackages/openScadController.js b/web/src/helpers/cadPackages/openScadController.js
index 570752c..1eb3c26 100644
--- a/web/src/helpers/cadPackages/openScadController.js
+++ b/web/src/helpers/cadPackages/openScadController.js
@@ -13,6 +13,9 @@ export const render = async ({ code, settings }) => {
     },
     file: code,
   })
+  if (!settings.camera.position) {
+    return
+  }
   try {
     const response = await fetch(lambdaBaseURL + '/openscad/preview', {
       method: 'POST',
diff --git a/web/src/helpers/hooks/useIdeState.js b/web/src/helpers/hooks/useIdeState.js
index 971b7ee..3fc0056 100644
--- a/web/src/helpers/hooks/useIdeState.js
+++ b/web/src/helpers/hooks/useIdeState.js
@@ -8,7 +8,8 @@ function withThunk(dispatch, getState) {
       : dispatch(actionOrThunk)
 }
 
-const donutInitCode = `
+const initCodeMap = {
+  openScad: `
 color(c="DarkGoldenrod")rotate_extrude()translate([20,0])circle(d=30);
 donut();
 module donut() {
@@ -21,16 +22,31 @@ module stick(basewid, angl){
         sphere(7);
         translate([0,0,10])sphere(9);
     }
-}`
+}`,
+  cadQuery: `import cadquery as cq
+from cadquery import exporters
+
+diam = 5.0
+
+result = (cq.Workplane().circle(diam).extrude(20.0)
+          .faces(">Z").workplane(invert=True).circle(1.05).cutBlind(8.0)
+          .faces("<Z").workplane(invert=True).circle(0.8).cutBlind(12.0)
+          .edges("%CIRCLE").chamfer(0.15))
+
+# exporters.export(coupler, "/home/jwright/Downloads/coupler.stl", exporters.ExportTypes.STL)
+
+show_object(result)
+`,
+}
 
 export const codeStorageKey = 'Last-openscad-code'
 let mutableState = null
 
 export const useIdeState = () => {
-  const code = localStorage.getItem(codeStorageKey) || donutInitCode
+  const code = localStorage.getItem(codeStorageKey) || initCodeMap.openscad
   const initialState = {
-    ideType: 'cadQuery',
-    consoleMessages: [{ type: 'message', message: 'Initialising OpenSCAD' }],
+    ideType: 'INIT',
+    consoleMessages: [{ type: 'message', message: 'Initialising' }],
     code,
     objectData: {
       type: 'stl',
@@ -52,6 +68,12 @@ export const useIdeState = () => {
   }
   const reducer = (state, { type, payload }) => {
     switch (type) {
+      case 'initIde':
+        return {
+          ...state,
+          code: initCodeMap[payload.cadPackage] || initCodeMap.openscad,
+          ideType: payload.cadPackage,
+        }
       case 'updateCode':
         return { ...state, code: payload }
       case 'healthyRender':
@@ -74,11 +96,6 @@ export const useIdeState = () => {
             : payload.message,
           isLoading: false,
         }
-      case 'setIdeType':
-        return {
-          ...state,
-          ideType: payload.message,
-        }
       case 'setLayout':
         return {
           ...state,
@@ -122,26 +139,28 @@ export const requestRender = ({
   camera,
   viewerSize,
 }) => {
-  cadPackages[state.ideType]
-    .render({
-      code,
-      settings: {
-        camera,
-        viewerSize,
-      },
-    })
-    .then(({ objectData, message, status }) => {
-      if (status === 'error') {
-        dispatch({
-          type: 'errorRender',
-          payload: { message },
-        })
-      } else {
-        dispatch({
-          type: 'healthyRender',
-          payload: { objectData, message },
-        })
-      }
-    })
-    .catch(() => dispatch({ type: 'resetLoading' })) // TODO should probably display something to the user here
+  state.ideType !== 'INIT' &&
+    !state.isLoading &&
+    cadPackages[state.ideType]
+      .render({
+        code,
+        settings: {
+          camera,
+          viewerSize,
+        },
+      })
+      .then(({ objectData, message, status }) => {
+        if (status === 'error') {
+          dispatch({
+            type: 'errorRender',
+            payload: { message },
+          })
+        } else {
+          dispatch({
+            type: 'healthyRender',
+            payload: { objectData, message, lastRunCode: code },
+          })
+        }
+      })
+      .catch(() => dispatch({ type: 'resetLoading' })) // TODO should probably display something to the user here
 }
diff --git a/web/src/layouts/MainLayout/MainLayout.js b/web/src/layouts/MainLayout/MainLayout.js
index e75bfe0..2df5967 100644
--- a/web/src/layouts/MainLayout/MainLayout.js
+++ b/web/src/layouts/MainLayout/MainLayout.js
@@ -8,6 +8,7 @@ import { getActiveClasses } from 'get-active-classes'
 import Footer from 'src/components/Footer'
 import { useLocation } from '@redwoodjs/router'
 import LoginModal from 'src/components/LoginModal'
+import NavPlusButton from 'src/components/NavPlusButton'
 import ReactGA from 'react-ga'
 import { isBrowser } from '@redwoodjs/prerender/browserUtils'
 
@@ -132,9 +133,7 @@ const MainLayout = ({ children, shouldRemoveFooterInIde }) => {
                 'mr-8 h-10 w-10 rounded-full border-2 border-indigo-300 flex items-center justify-center'
               )}
             >
-              <Link className="h-full w-full" to={routes.draftPart()}>
-                <Svg name="plus" className="text-indigo-300 w-full h-full" />
-              </Link>
+              <NavPlusButton />
             </li>
             {isAuthenticated ? (
               <li
diff --git a/web/src/pages/DevIdePage/DevIdePage.js b/web/src/pages/DevIdePage/DevIdePage.js
index 5985b26..f648de1 100644
--- a/web/src/pages/DevIdePage/DevIdePage.js
+++ b/web/src/pages/DevIdePage/DevIdePage.js
@@ -3,7 +3,7 @@ import Seo from 'src/components/Seo/Seo'
 import IdeToolbar from 'src/components/IdeToolbarNew'
 import OutBound from 'src/components/OutBound'
 
-const DevIdePage = () => {
+const DevIdePage = ({ cadPackage }) => {
   return (
     <div className="h-screen flex flex-col">
       <MainLayout shouldRemoveFooterInIde>
@@ -12,10 +12,9 @@ const DevIdePage = () => {
           description="new ide in development"
           lang="en-US"
         />
-        <div className="py-4 bg-pink-200">
-          <div className="mx-auto max-w-6xl">
-            Woah, woah. You shouldn't be here! We're still working on this.
-            Since you've seen it now, have a look what{' '}
+        <div className="py-2 bg-pink-200">
+          <div className="mx-auto max-w-3xl">
+            We're still working on this. Since you're here, have a look what{' '}
             <OutBound
               className="text-pink-700"
               to="https://github.com/Irev-Dev/cadhub/discussions/212"
@@ -27,7 +26,7 @@ const DevIdePage = () => {
         </div>
       </MainLayout>
       <div className="flex-auto">
-        <IdeToolbar />
+        <IdeToolbar cadPackage={cadPackage} />
       </div>
     </div>
   )
diff --git a/yarn.lock b/yarn.lock
index ca35b52..40472f6 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1404,6 +1404,11 @@
   resolved "https://registry.yarnpkg.com/@hapi/bourne/-/bourne-2.0.0.tgz#5bb2193eb685c0007540ca61d166d4e1edaf918d"
   integrity sha512-WEezM1FWztfbzqIUbsDzFRVMxSoLy3HugVcux6KDDtTqzPsLE8NDRHfXvev66aH1i2oOKKar3/XDjbvh/OUBdg==
 
+"@headlessui/react@^1.0.0":
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/@headlessui/react/-/react-1.0.0.tgz#661b50ebfd25041abb45d8eedd85e7559056bcaf"
+  integrity sha512-mjqRJrgkbcHQBfAHnqH0yRxO/y/22jYrdltpE7WkurafREKZ+pj5bPBwYHMt935Sdz/n16yRcVmsSCqDFHee9A==
+
 "@icons/material@^0.2.4":
   version "0.2.4"
   resolved "https://registry.yarnpkg.com/@icons/material/-/material-0.2.4.tgz#e90c9f71768b3736e76d7dd6783fc6c2afa88bc8"