- Stock: In Stock
- Product code: 00-00011662
- Weight Brutto: 1.50kg
- SKU: FS1-SIFT-FUN-01
The Fuse Sift Funnel is a drop-in accessory for the Formlabs Fuse Sift that eliminates powder spills when loading fresh SLS powder from 10 kg bag packages. Designed for busy SLS workflows, it replaces the standard flat hopper lid with a wide-mouth funnel enclosure, keeping the workstation clean and reducing material waste during every refill cycle.
The Problem It Solves
Loading loose SLS powder from a bag into the Fuse Sift's fresh powder hopper is straightforward — until the bag slips, the pour angle is off, or powder drifts across the work surface. The flat plug-style hopper lid that ships with some Fuse Sift units makes bag-filling particularly awkward: the opening is narrow and there is no funnel geometry to guide the powder stream.
The original fresh powder hopper without the Fuse Sift Funnel installed — the small circular opening leaves little margin for error when pouring directly from a 10 kg bag.
A Purpose-Built Funnel That Drops Right In
The Fuse Sift Funnel mounts directly onto the existing hopper lid screws — no drilling, no adhesives, no permanent modifications. The hinged lid stays closed during printing and opens wide for filling, giving the operator a large target area that directs powder cleanly into the hopper below.
The funnel unit shown here with its lid fully open, revealing the mesh-filtered intake surface that prevents foreign objects from entering the fresh powder hopper while maintaining airflow.
Installation in Five Steps
Installation requires only a 2 mm hex driver and takes under ten minutes. The four existing hopper lid screws are reused — no additional hardware is needed. The sequence below shows the completed installation with the funnel seated flush against the Fuse Sift top surface.
- Compatible with any Fuse Sift unit that has a flat fresh powder hopper lid with a plug
- Hinged lid design — opens for filling, closes during operation
- Mesh-filtered intake prevents contamination of fresh powder
- Mounts using the four existing M2 hopper lid screws (2 mm hex driver required)
- Also available as a self-printable STL from the Formlabs media library
Tech Tip: Before installing or removing the Fuse Sift Funnel, vacuum the workspace thoroughly — including the walls, tool shelf, parts basket, surface grate, and build chamber enclosure. Even small residues of one powder type can contaminate fresh powder of a different material, causing print failures. If you regularly switch between Nylon 12 and glass-filled powders, consider labelling each Fuse Sift Funnel by material type.
How to Install the Fuse Sift Funnel
Step-by-step procedure for fitting the Fuse Sift Funnel to the fresh powder hopper of a Formlabs Fuse Sift unit with a flat hopper lid.
Step 1: Vacuum the Workspace
Before starting, vacuum the entire Fuse Sift workspace — walls, tool shelf, parts basket, surface grate, and build chamber enclosure. This prevents cross-contamination between powder types during the installation.
Step 2: Remove the Existing Hopper Lid Screws
Using a 2 mm hex driver, loosen and remove the four screws that secure the current fresh powder hopper lid. Set the screws aside — they will be reused to mount the funnel.
Step 3: Position the Fuse Sift Funnel
Place the Fuse Sift Funnel over the fresh powder hopper opening, aligning the four screw holes in the funnel body with the corresponding threaded holes at the top of the hopper.
Step 4: Secure with Existing Screws
Thread one of the original hopper lid screws into each of the four screw holes. Using the 2 mm hex driver, tighten all four screws until snug — do not overtighten.
Step 5: Verify Fit and Test the Lid
Confirm the funnel sits flush against the Fuse Sift top surface with no gaps. Open and close the hinged lid several times to ensure smooth operation. The Fuse Sift Funnel is now ready for use with 10 kg bag powder refills.
Frequently Asked Questions — Formlabs Fuse Sift Funnel
Which Fuse Sift units are compatible with the Fuse Sift Funnel?
The Fuse Sift Funnel is compatible with any Fuse Sift unit that has a flat fresh powder hopper lid with a plug. Units that already include a funnel-style opening may not require this accessory. Check your Fuse Sift model configuration before ordering.
Is the Fuse Sift Funnel also available as a printable file?
Yes. Formlabs provides a downloadable STL file for the Fuse Sift Funnel through their media library. Teams with access to a suitable SLS or SLA printer can self-print the part. The purchased version from EXPERT3D is the production-grade unit, ready to install without any printing or post-processing.
Does the Fuse Sift Funnel work with all Formlabs SLS powder types?
Yes. The Fuse Sift Funnel is designed for use with any Formlabs SLS powder packaged in 10 kg bags, including Nylon 12, Nylon 12 GF, Nylon 11, TPU 90A, and related materials. If switching between powder types, vacuum the funnel and hopper area thoroughly before each refill to prevent cross-contamination.
What tools are required to install the Fuse Sift Funnel?
Only a 2 mm hex driver is required. The funnel reuses the four existing hopper lid screws, so no additional hardware or consumables are needed.
Can I pour directly from the 10 kg bag with the funnel installed?
Yes — that is the primary purpose of the accessory. Open the hinged lid, position the bag mouth over the funnel opening, and pour. For cleaner control, Formlabs also suggests using a clean scoop or a dispenser tool (such as a bird seed scoop) to transfer powder in smaller increments and minimize spills further.
Does the mesh filter affect powder flow into the hopper?
The mesh filter is sized to pass SLS powder freely while blocking larger debris — clumps, packaging fragments, or other contaminants. Under normal pouring conditions with dry, properly stored powder, flow rate is not meaningfully affected.
Why Choose EXPERT3D?
EXPERT3D has been a specialist in 3D technology since 2012, serving engineering teams and production departments across Spain with technical expertise and hands-on support. We stock Formlabs Fuse Series accessories including the Fuse Sift Funnel and provide rapid shipping across Spain and Europe. Our team can advise on Fuse Sift consumables, powder compatibility, and workflow optimisation. Order directly from our online store with transparent pricing in EUR (€) and full official warranty coverage.
