Moog Rogue: cleaning and repairing the dust shield

Between the top panel and the main PCB, the Rogue employs a sheet that fits around the controls to prevent dust from clogging the sliders and switches. For some reason, the material has a tendency to decay, and after 20 years, it’s likely that it has turned to crumbly black goo. This goo is horrible stuff, and will stick to anything. The only remedy is to scrape it away.

My own Rogue arrived after a clean, so I have no photos of this goo. But below is a picture of the switches collecting dust after using the Rogue with no dust protector for a while. Clearly it would be a good idea to not only remove the sticky residue from a decayed dust-shield, but to replace it so as to avoid having to clean all these contacts.

photo of dusty switches in a Moog Rogue

Dusty switches in a Moog Rogue

The best material I have found for the job is neoprene sheeting. It can be found at craft stores, or online, and comes in sheets around 2mm thick, which is ideal for this purpose. I use black sheets around 200 x 300mm in size, though it doesn’t matter much what size the sheets are because they will be cut into much smaller pieces for application.

If we look at the Rogue’s control panel, we can see a cluster of sliders, two separate sliders, and several switches spread across the surface. It would be possible but awkward to cut one sheet to fit all these holes at once, so I chose to use a simpler method: apply individual pieces to the switches, and use larger pieces for the sliders. The switches being relatively broad, I chose to use snug slip-on pieces over each switch. The sliders only need to poke through a slot, so I chose to attach slit pieces to the panel and have the slider tangs poke through.

photo of the interior of a Moog Rogue control panel

Interior of the Moog Rogue control panel

Measuring the panel is easy enough:

photo of a drawing for a Moog Rogue dust protector

Drawing for a template for a Moog Rogue replacement dust shield

The neoprene sheet can be marked with pencil, and scored and cut with a craft knife:

photo of cutting a replacement neoprene dust sheet for a Moog Rogue

Cutting a replacement neoprene dust sheet for a Moog Rogue

Here are some close-ups of the slider protectors:

photo of replacement neoprene dust sheet for slider bank of a Moog Rogue

Replacement neoprene dust sheet for slider bank of a Moog Rogue

Single slider dust protector cut from neoprene sheet for a Moog Rogue

Single slider dust protector cut from neoprene sheet for a Moog Rogue

Checking that it fits:

photo of neoprene dust sheet for a Moog Rogue

Checking the slider dust sheet fits

Fastening the sheets to the panel is also easy. Rather than glue, I use double-sided sticky tape. These strips are about 5mm wide. I buy broader tape and cut the lengths down the middle. Care should be taken applying these taped pieces to the panel as the adhesive sticks quite readily.

photo of dust sheet with tape attached

Using double-sided tape to secure the dust sheet to the panel

photo of Moog Rogue panel with dust sheet attached

Moog Rogue panel with neoprene dust shields attached

The pieces for the switches are more fiddly. I cut small rectangles and used a regular office hole punch to make the holes for the switch to poke through:

photo of a small piece of neoprene with a hole-punched hole

Using a hole punch to make the switch dust protectors

They happen to fit nicely. In retrospect, I would have used larger pieces, as these were a little narrow for my liking, but they still do the job.

photo of neoprene switch dust protectors in place

Switch dust protector pieces in place

Once the job is complete, the panel looks much neater from outside, and the likelihood of dust getting in to clog the controls and damage them is much lower:

photo of Moog Rogue with replacement dust sheet

Finished! The Moog Rogue with fresh replacement dust protectors installed

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