Gemini SnapCap is an excellent solution for dust protection, installs in few minutes without drilling holes and works even in the field or in your remote observatory. Available with single or double (half) flaps.
We can also add a flat panel for your convenience (up to 40 cm optics). For optical tubes over 40cm you get 2 semicircles with 2 motors and no flat panel is possible. Snap Cap is a simple, reliable modular device. Below is a video guide to the SnapCap options.
Gemini SnapCap Installation
Snap Cap is a simple, reliable modular device and very easy for installation (Gemini SnapCap Installation in few steps).
This is what Manuel from Austria wrote: “It is not really difficult(to install) and works fine. Great and useful product and saves me time.”
How it works
A plastic coated metal band holds the motor unit on the tube or dewcap. The cap’s axis is inserted into the motorized arm. You connect the cables and it is ready to go. Available with 90 or 270 degree rotation. If you change OTA you need to exchange the cap and the metal band only. The video below features a double Snap Cap cover.
To operate Snap Cap you just have to download its Windows control program that allows controlling the motor and the flat panel, as seen below. It has USB and Bluetooth connection and can be controlled from your Android device too. Supported in Sequence Generator PRO. An ASCOM switch emulating driver is also available.
Alternatively you can use two free contacts on a computer (usb or LAN) controlled relay switch (500mA). See the gemini snapcap manual for details. It weights from cca 300 g to 2000 g, depending on size and flat panel. The links to driver and software download are in the manual.
We use exclusively alluminium, stainless steel, zink plated steel and inox screws. The cap is made of 1mm carbon composite.
Price list for SnapCap kits
- Standard kit – motor, metal band and carbon cap, control box (for PC switch control), NOT includes: power supply, PC controlled switch, switching cable: for prices see the table below!
- Full kit – motor, metal band and carbon cap, PC control or ASCOM switch, cable (custom length), power supply (12VDC adapter): add 130 EUR to the standard kit price
- New OTA kit for no flat caps – metal band and carbon cap cut to size: 61,00 EUR
- All versions are available in 90 or 270 degree opening angle.
|50 - 200mm diameter||201 - 300mm||301 - 400mm||401 - 500mm|
|Single Flap||290 EUR||354 EUR||427 EUR||n.a|
|Double Flap||n.a||n.a||580 EUR||590 EUR|
|150mm Flat Foil||370 EUR||n.a||n.a||n.a|
|230mm Flat Foil||n.a||500 EUR||n.a||n.a|
|330mm Flat Foil||n.a||n.a||600 EUR||n.a|
|420mm Flat Foil||n.a||n.a||n.a||750 EUR|
Shipping is extra. 22% sales tax (for EU orders only) is included. We provide 2 years of warranty for mechanical parts and 1 year for all electronic parts.