ATM Parts
FRP - Teflon - Aluminum Tubes - Wooden End Rings
Aluminum Tubes
Raw tubes are cut to length and shipped - you clean and finish.

Finished and raw aluminum tubes cut to your specified length.

Finished tubes are cut to length, interiors are roughened with grit in flat black paint to eliminate incident stray light bounce. A rugged glue permeated textile exterior in your choice of color adds insulation over the tube exterior. Finished with a clear acrylic polymer.

We recommend using a hole saw to cut the focuser opening.

E-mail for shipping costs, or place your order, and we will send shipping costs for your approval before accepting your PayPal payment.
Type  
Raw
Outside Diameter / Length - 0.064" Wall Thickness
Specify desired length
Finished
Outside Diameter / Length - 0.064" Wall Thickness
Specify desired length
Ebony Star and Virgin Teflon

Ebony Star in finishes useful for ATM has not been manufactured in many years.

FPR has been used in manufacturing Dobsonian telescopes for many years.
Ebony Star in the prefered -50 and -52 finishes have been out of production for 8 years.

Prices include shipping in the continental USA
FRP Azimuth Rings
Outside Diameter

48" FRP Strips

NOTE: For 10" or smaller diameter bearings, heat the FRP strip so it is more pliable, to avoid snapping and breaking.

 

Width
Virgin Teflon Pads
Sizes

Wooden End Rings

End rings protect tubes from damage. 13 ply Baltic Birch, 1" wide, incised 1/8" wide 1/2" deep. Press or glue onto tubes. Finished end rings are fine sprayed with up to eight coats of acrylic polymer, with ebony tint (reddish).

E-mail or call for shipping costs. Or place your order, and we will send shipping costs for your approval before accepting your PayPal payment.
Type
Tube outside diameter
Tube wall thickness