Samsung SC Vacuum Hose Adapter / Replacement Hose Connector

This is a replacement hose-to-vacuum-body adapter designed for Samsung SC-series vacuum cleaners and some newer Samsung models using the same type of hose connection.

The original adapters tend to fail after long-term use, especially around the locking tabs. These tabs are repeatedly flexed every time the hose is connected or removed and eventually may crack or break off.

I designed this version as a complete replacement for the original part.

Design

The adapter consists of:

• one main body;

• two separate flexible locking tabs.

The locking tabs are printed separately and glued into the slots inside the main body.

I intentionally made them separate instead of printing the entire adapter as one piece. This allows the main body to be printed flat on the build plate, while the locking tabs can be oriented verticall.

Once assembled, the tabs flex inward when the adapter is inserted into the vacuum cleaner and spring back into place to lock it.

The fit is slightly tighter than the original adapter on the vacuum cleaners I tested. This also reduces air leakage around the connection.

Hose connection

The internal hose thread is intentionally slightly different from the original Samsung part.

The original vacuum hose normally has an additional reinforcement feature along. If the end of the hose becomes damaged and has to be cut off, fitting the shortened hose back into the original adapter may be difficult or impossible.

This adapter can accept the corrugated hose even if it has been cut at an arbitrary point, so a damaged hose can often be repaired simply by cutting off the bad section and screwing the remaining hose into the new adapter.

This can save an otherwise perfectly usable vacuum hose.

Recommended materials

PETG works well and is probably the easiest material for most printers.

It is flexible enough for the locking tabs and can tolerate repeated bending better than more brittle materials such as PLA.

However, PETG is not ideal for long-term cyclic flexing. If the locking tabs are repeatedly bent through their full range, fatigue damage can eventually occur.

PA / Nylon is strongly recommended if your printer can handle it.

After proper conditioning, nylon is an excellent material for this part:

• very good flexibility;

• much better resistance to repeated bending;

• tough locking tabs;

• low-friction surface;

• smooth rotation of the hose inside the vacuum connection.

I currently use nylon versions on three vacuum cleaners, and they have been working very well.

The nylon adapter also rotates noticeably easier than the original part, which helps prevent the hose from twisting during use.

Print settings

Settings used for my parts:

• Nozzle: 0.4 mm

• Layer height: standard / around 0.2 mm

• Infill: 100%

• Supports: required

• Brim: recommended for the locking tabs

The main body requires supports for the internal skirt / overhanging internal section.

The locking tabs are printed vertically. A brim is recommended because their contact area with the build plate is relatively small.

Since the part is not very large, printing it at 100% infill does not consume much additional material and gives the body maximum strength.

Assembly

Print the main adapter body and both locking tabs separately.

Insert the tabs into their corresponding slots inside the adapter and secure them with an adhesive suitable for the material you are using.

Make sure both tabs can flex freely before installing the adapter into the vacuum cleaner.

Then screw the vacuum hose into the threaded section of the adapter.