Creating a DIY Dust Cover for the Sharp X68000

The Sharp X68000 has a distinctive tower-shaped case that deserves protection from dust, sunlight, and accidental spills. Its vertical form is practical for desk space, but it also leaves the upper vents and front drive openings exposed when the machine is stored between sessions. A well-made homemade computer cover can reduce cleaning, protect aging plastics, and make long-term preservation easier.

A commercial cover may be difficult to find, especially in the correct size for different X68000 models. Building one yourself is inexpensive and allows the fit, fabric, ventilation, and appearance to be adjusted for an XVI, Compact, Super, or another member of the family. The most important principle is simple: cover a completely cool and disconnected computer, and never trap heat during operation.

The project requires ordinary sewing or cutting tools, washable fabric, and careful measurement. It can be completed as a basic sleeve, a fitted enclosure with a top handle, or a more protective storage cover with a soft lining. Each approach has advantages, depending on whether the X68000 stays on a desk or travels to events.

Why The Original Hardware Needs Protection

Dust is more than a cosmetic problem on an aging computer. It can collect around cooling vents, settle inside floppy disk mechanisms, and combine with humidity to form a sticky layer on circuit boards. The X68000’s internal fans and power supply can draw particles into areas that are difficult to reach without disassembly. Keeping the exterior covered when idle helps reduce that gradual buildup.

Sunlight and household contamination also matter. Ultraviolet exposure can contribute to yellowing or uneven coloration of light-colored plastic, while kitchen grease and smoke adhere to textured surfaces. A cover creates a removable first line of defense. It is easier to wash fabric than to restore discolored ABS plastic or clean deposits from a vintage motherboard.

The cover should never be treated as a substitute for maintenance. Before covering the machine, allow it to cool, disconnect the power cable, and check that no moisture is present. If the computer is being prepared for storage, inspect its power system first; these power supply voltage tests are useful before putting an old unit back into regular service.

Measuring The X68000 Case

Start by measuring the specific computer rather than relying on published dimensions. Model variations, attached expansion panels, raised feet, and rear cable arrangements can change the amount of clearance needed. Measure the maximum height, width, and depth with the machine in its normal upright position. Include any permanent accessories that should remain under the cover.

Add a small allowance for removal and installation. A cover that exactly matches the case may look neat, but it can snag on switches, drive bezels, or rubber feet. For a fabric sleeve, 10 to 20 millimeters of ease on each side is usually practical. A loose dust cover needs more room, especially if it will be pulled over while the machine remains connected to rear cables.

Make a paper or cardboard mock-up before cutting cloth. Tape together panels with the approximate dimensions and test the fit around the front drive doors, top vents, rear connectors, and side handles. This inexpensive pattern reveals errors early and helps determine whether the finished cover should stop above the base or extend near the desk.

A useful measurement record includes the following:

Measurement	What To Record	Why It Matters
Overall height	Highest point to desk surface	Determines the main panel length
Front-to-back depth	Furthest front edge to rear edge	Prevents tension around the sides
Maximum width	Widest part of the case	Allows room for a smooth fit
Vent locations	Top and side openings	Helps avoid abrasive contact
Cable clearance	Space needed at the rear	Supports storage without bending plugs
Base and feet	Lowest edges and rubber feet	Prevents the hem from dragging

Choosing Fabric And Construction

A tightly woven cotton, canvas, or lightweight upholstery fabric makes a good outer layer. Cotton is easy to cut and sew, while canvas resists abrasion when the cover is moved often. A synthetic microfiber fabric can also work because it sheds lint and is gentle on plastic. Avoid loose-weave material, rough burlap, and fabrics with hard decorative threads that could scratch the case.

The inside should be smooth. A separate lining made from cotton lawn, fleece, or soft polyester protects the plastic from seams and helps the cover slide over the computer. Thin padding is useful when the machine is transported, but it is unnecessary for a stationary dust cover and can make ventilation clearance harder to judge. If padding is used, keep it light and avoid loose fibers.

There are three practical construction styles. A simple rectangular sleeve is quickest and leaves the bottom open. A box-shaped cover with a top panel gives a cleaner fit around the tower. A fitted cover with shaped side panels uses more fabric and sewing but looks professional and is less likely to slip. For most home workshops, a lined sleeve with a gathered or elasticized lower edge offers the best balance of effort and protection.

Use a washable design whenever possible. Prewash natural fabric before cutting so it does not shrink around the computer later. Press the material flat, mark the pattern on the reverse side, and finish raw edges with a zigzag stitch, bias tape, or a folded hem. Any loose thread inside the cover should be trimmed because it can catch on switches or connectors.

Building The Cover Safely

Transfer the cardboard pattern to fabric with a ruler and a removable marking pencil. Cut the main body with the grain running vertically where possible. This improves stability and keeps the cover from twisting. Add seam allowance according to the planned stitch, usually about 10 to 15 millimeters. If the design includes a lining, cut the lining from the same pattern but slightly smaller.

Sew the outer panels first and test the unfinished shell over the disconnected, cool X68000. Do not force it around the case. Check that the top does not press hard against ventilation grilles and that the bottom edge does not catch on feet or a raised base. Mark any tight area and correct it before adding the lining or decorative trim.

A front label or embroidered X68000 mark can make the orientation obvious, but avoid metal badges, exposed staples, and hard plastic ornaments. They can scratch the shell when the cover is moved. A fabric handle is convenient for lifting the cover away, although it should be positioned so that it cannot be mistaken for a handle intended to lift the computer itself.

For a snug lower edge, sew a channel and insert a soft elastic cord. Keep the tension modest. Excessive elastic can pull against the case, trap dust at the bottom, or make removal awkward. An open-bottom design is often preferable because it allows air to circulate after use and does not press against the machine’s feet. The cover belongs on a fully powered-down system, never over a running X68000.

Ventilation, Static, And Storage Details

Ventilation deserves special attention because a cover can hide a dangerous mistake. Do not operate the X68000 with a cloth cover in place. Fabric can restrict airflow, hold heat near the power supply, and obstruct the fan. Remove the cover before connecting power, and store it nearby rather than leaving it draped over the case during a session.

Static electricity is another reason to select materials carefully. Ordinary fabric is generally suitable for an external dust cover, but avoid highly charged fleece or plastic-backed cloth that clings aggressively. Do not line the cover with bubble wrap, foam that sheds particles, or metallized material. A soft, breathable lining is safer for long storage.

The storage environment should be cool, dry, and away from direct sun. Do not place the covered computer inside a sealed plastic bag unless humidity control is carefully managed. A fabric cover allows limited air exchange and reduces the chance of condensation being trapped against the case. If the room is damp, use a hygrometer and keep desiccant separate from the computer rather than placing loose packets inside vents or drive openings.

The same care applies to accessories. Controllers, cables, cartridges, and disks should have their own dust protection instead of being stacked on top of the X68000. Heavy objects can deform the cover and transfer pressure to the top vents. A shallow shelf or cabinet with open rear clearance is usually safer than a tightly packed storage box.

Testing Fit And Maintaining The Finished Cover

After sewing, inspect every seam and turn the cover inside out to remove stray fibers. Shake it outdoors or vacuum it gently with a clean upholstery attachment. Washing is preferable when the fabric allows it, but let the cover dry completely before it goes near the computer. Damp cloth is a greater risk than ordinary household dust.

Place the cover over the X68000 and check the front, sides, top, and rear in good light. It should sit without stretching, the hem should remain above the desk, and no seam should align with a sharp corner in a way that creates constant pressure. If a rear cable remains connected during short-term storage, shape a small cable notch with reinforced stitching rather than leaving the fabric pulled tightly around the plug.

Mark the cover with its intended model if the household contains several systems. An XVI and a Compact may appear similar at a glance while having different clearances. A removable label made from fabric or card avoids confusion and can record the date of construction and the washing instructions.

A dust cover is also a useful prompt to inspect the machine periodically. Remove it every few weeks, look for moisture or insects, and check the vents and cable area. If hardware work is planned, protect removed screws and panels in labeled containers. Projects such as a font ROM replacement benefit from the same orderly approach: document the model, preserve original parts, and avoid letting dust enter the open case.

Practical Choices For A Reliable Cover

The best design depends on how the computer is used, how often it is moved, and whether the owner prioritizes speed or appearance. A cover for a frequently played machine should be quick to remove and easy to wash. A cover for a display system can use a more fitted pattern and decorative trim, provided that the fabric remains soft and breathable.

Before starting, gather the materials and decide which features are genuinely useful. A simple project often protects the computer as effectively as a complicated one.

• Measure the exact X68000 model, including feet, handles, and permanent rear accessories.
• Choose smooth, low-lint fabric with a breathable lining and no abrasive decorations.
• Add modest ease so the cover slides on without rubbing vents, switches, or drive doors.
• Keep the lower edge loose enough for removal and never use the cover during operation.
• Wash or vacuum the finished cover and inspect it regularly for moisture, dust, and loose fibers.

A removable pattern is worth preserving after the first successful build. Store it with the cover so a replacement can be made if the fabric wears out. The pattern can also be adapted for an expansion-equipped system or modified to include a small rear cable flap.

A carefully made fabric enclosure does more than keep dust off a vintage computer. It encourages responsible storage, makes cleaning less frequent, and reflects the practical preservation culture surrounding the X68000. Build the cover around the actual machine, test it before trusting it for long-term storage, and keep the finished pattern with the rest of the system documentation so the computer remains protected and ready for its next session.