Clamshell Rings for Equatorial Heads
Heavy Duty Finished clamshell rings:
Arrive ready to use. Can be shipped to most countries.

Heavy Duty Kit clamshell rings:
All parts included. Wooden parts are rough sanded, screw holes pre-drilled. All parts dry-fitted before shipping. Kits may be shipped worldwide. What you'll need: Philips screwdriver, sanding paper, wood glue.

Materials:
CNC precision cut 3/4" Baltic Birch plywood. Anodized heavy duty aluminum piano hinge. 2-1/4"x1/4-20 threaded thumb screw (or multiple if desired), brass threaded inserts, #12 steel wood screws. Clamshells open and close using a 2-1/4" thumb screw that passes through one of the top boards into a 1/4-20 brass threaded insert in the abutting board. Finished mounts have up to eight coats of fine sprayed polymer sealer, with an ebony (reddish) tint.

Lightweight Finished rings:
Arrive ready to use. Can be shipped to most countries.

Lightweight Kit rings:
All parts included. Wooden parts are rough sanded, all holes pre-drilled. All parts dry-fitted before shipping. Kits may be shipped worldwide. What you'll need: Sanding paper, wood putty.


Ordering:
Payment is by PayPal or credit card via PayPal. You do not need a PayPal account.
Clamshell rings require 50% deposit.

We will e-mail a PayPal invoice for the balance due plus shipping when your mount is ready.

For estimated shipping costs, e-mail or call with the telescope tube diameter and mounting plate dimensions. If you have any questions or would like to discuss your mount, please e-mail or call.
After your deposit is received, we will e-mail you to obtain all necessary dimensions:

Dimensions include diameter or circumference of your telescope tube, and the hole pattern and profile of the plate the rings will attach to - the plate manufacturer's drawing reference is very helpful.
Heavy Duty Rings for mounting plates, kit.
Lightweight Rings, finished.
Place your telescope on an equatorial head.

Each clamshell ring set is custom designed to match the diameter of your OTA and hole patterns, then CNC cut to assure best precision.

Heavy Duty Clamshell ring tension is adjustable so you can have "just enough" to allow tube rotation yet hold the optics securely. Lightweight Rings should be lined with adhesive backed felt to fit snugly.

Available as easy to assemble kits with all parts included, or finished and ready to use. We can install adhevive backed felt along the inside edge of the rings for $2.50 per foot.
Item  
Price
Deposit
Order
Heavy Duty Kit
$160.00
$80.00
Heavy Duty Finished
$270.00
$135.00
Lightweight Rings Kit
$140.00
$70.00
Lightweight Rings Finished
$250.00
$125.00