Filaments confirmed.
Each confirmed choice turns a bar green. Phil gives a thumbs-up when all are confirmed; check any remaining weight warnings before printing.
Opening your library…
CHECK WITH PHIL · MAKERWORLD COMPANION
The right roll.
Before you hit print.
Found your next print? Mr. Phil Lament checks it against the filament you already own—right on the MakerWorld project page.
Desktop Chrome, Firefox & Zen
THREE SMALL STEPS
From your shelf to your next print.
- 01
Keep your library current.
Add your rolls at Check with Phil. Record material, color, full spool weight, sealed/open counts, and the amount left on open rolls.
- 02
Link it once.
Open the extension’s toolbar icon, choose Link your library, select your library’s exact address, and allow access. Keep the library tab open for updates.
- 03
Pick a MakerWorld profile.
Phil appears beside recognized filament lists. Hover for a hint or click for the breakdown. Confirm the selected profile, colors, and sliced weights before printing.
PHIL’S A MAN OF FEW WORDS
Phil’s emotes!
Time for another roll.
A required filament is missing or the recorded amount is too low. See the shortfall and optional Bambu links.
Let’s check first.
Link your library, choose a close color, or fill in information Phil cannot verify.
Nothing to check yet.
The project has no recognized filament list. Phil waits in the bottom-right corner and explains why.
Look for Phil at the top-right of Print Files and the larger Ready-to-Build Pack column when filaments are listed. Both badges open the same check.
MAKE THE CHECK COUNT
Know your stock!
Phil compares material, color, and recorded quantity. Close colors are suggestions you approve. A default 5% buffer gives the calculation some breathing room.
Manage your rollsUse the sliced amounts.
Include supports and purge. If MakerWorld does not expose usable per-color weights, choose Enter requirements and copy the values from Bambu Studio.
Check the scope.
Review the selected print profile and plate. Separate partial rolls are not combined automatically, and unknown amounts stay unknown.
Keep the library tab open.
Changes refresh about every five seconds, subject to browser throttling. When the tab is closed, Phil uses the last synced snapshot and shows its time.
MEET YOUR BROWSER’S NEW SHOP ASSISTANT
Install the beta.
These are manual test builds. Browser-store installation will be available after review; these downloads are not signed store releases.
Chrome
For desktop Chrome 120 or later.
Download for Chrome- Unzip the download.
- Open
chrome://extensionsand turn on Developer mode. - Choose Load unpacked and select the extracted folder containing
manifest.json. - Open Phil from your toolbar’s extensions menu and link your library.
Firefox & Zen
For desktop Firefox 140+ or a compatible Zen release.
Download for Firefox / Zen- Unzip the download.
- Open
about:debugging#/runtime/this-firefox. - Choose Load Temporary Add-on, then select the extracted
manifest.json. You can also select the Firefox ZIP directly without unzipping it. - Open Phil from your toolbar and link your library. Reload the temporary add-on after restarting the browser.
Updating? Replace the extracted files, reload the extension, close old Settings or walkthrough tabs, and reopen Settings from the toolbar. Refresh MakerWorld too.
A FEW THINGS TO KNOW
Help from the workshop.
Linking does not finish. What should I check?
In Settings, choose the exact address where your library is saved: www.checkwithphil.com or checkwithphil.com. Local data at these addresses is separate. Allow the requested site access, leave the opened library tab visible until it loads, and sign in there if you use cloud sync. Then return to Settings to see the linked roll count or a specific error.
Use the same browser profile. With Firefox containers, check that the opened tab contains your library. If you switch accounts, reconnect. A file opened directly as demo.html cannot link; use the installed extension.
Which websites does it work with?
The overlay is designed for MakerWorld model pages. Your inventory comes from Check with Phil. Optional shopping links open the Bambu Lab Store. Printables, Thingiverse, other model sites, and Safari are not supported in this release.
What if Phil cannot read a project’s filament weights?
Version 0.2.2 reads material, color swatches, and per-color weights from visible Print Files chips and profile hover cards. Screen colors are approximate; confirm a suggested roll. Live MakerWorld compatibility is still being verified. If a list cannot be read, use the selected profile’s per-color weights from your slicer. Retail spool sizes in a product pack are not the project’s print usage.
Does it read my printer or AMS?
No. It uses the amounts you record in your library. It does not connect to printers, read RFID, track prints, or automatically deduct used filament.
Does it change my library or buy filament?
No. The library connection is read-only. Shopping links let you review a product yourself; Phil does not choose a cart, place an order, or guarantee stock or a specific color variant.
Can I use it without linking a library?
You can open the optional sample walkthrough from the toolbar. Sample comparisons carry a DEMO label. An unlinked library shows a shrug and never becomes a missing-stock warning.
Is this ready for everyone?
This is an early beta, and feedback is welcome. Linking and comparisons have automated coverage with test libraries. Actual Firefox/Zen account sessions and current MakerWorld pages still need broader testing. Firefox signing and browser-store review are pending. Verify the slicer values before relying on a result.