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Dobsonian Mounts

Which mount is best for you?

 Options:
Manual or Digital setting circles.
1 mount for 2 telescopes? Yes!
Stands to raise height.
Amateur Telescope Making
Altitude Bearings
Image Sharpening Masks
Primary:  Fix Turned Down Edge.  
Imaging: Remove mirror clip flares.
Aperture: Eliminate spider spikes. 
Optimized Mirror Cells
Clamshell & Rotating Rings
Altitude and azimuth setting circles.
Teflon and Laminate for altitude and azimuth bearings.
Azimuth bearing bolt assembly kits.

Click for ATM item shipping costs.
23" and under.
Over 23" split.

Altitude and Azimuth Setting Circles.
Click image to enlarge showing portions of both az and alt circles.

3mm thick birch plywood, custom laser cut to your size. Up to 23" diameter complete circles. Over 23" in equal halfs. Can fit on top or under rocker box board, or around tight corners of side and front boards with limited space.Laser etched, easy to glue. Order and we'll e-mail for your size requirements. Inlcudes complete pointer assembly shown in bottm right inset here.

Order:
   

Azimuth Setting Circle Pointer Assembly

Attach to the top of your ground board with small screw and have a pointer
for your azimuth setting circle. 1" between top of mounting tab and pointer..

Order: $17.50.

 

 Example of 1.5" ring thickness.

Black Formica laminate Crystal 42

Laser Cut Azimuth Bearing Laminate Rings.
Prices are for ring widths up to 23.5" and thickness up to 1.5".
Ring thickness example below image at left.
Wider and/or thicker rings upon request.
Check our precut ring specials here.

Maximum outside diameter
Outside diameter desired.
Ring thickness up to 1.5"

 

Laminate Rounds: $20.
Free shipping within U.S. Can include teflon pads.
$15 if including laminate strips or az bolt assembly.

Available from 8" to 15" - sizes constantly vary.
We will e-mail size closest to your minimum before processing order.
Minimum diameter:


Altitude Bearing Laminate 48" Strips.
Black Formica laminate Crystal 42
Sold in pairs (2 strips).

Width


 

Virgin Teflon (PTFE) Pads.

Predrilled and countersunk with #6 flathead screws included.

0.708" x 1.25" x 0.25" Altitude pads for 18mm (called 3/4") plywood.
0.984 "x 1.25" x 0.25" Altitude pads for 25mm (called 1.0") plywood.
1.25" x 1.25" x 0.25" Azimuth pads.

Azimuth pads ordered with Azimuth Laminate Bearing Ring:
Pads can be sized to match width of azimuth ring up to 1.5".

Sizes:


Azimuth Bolt Assembly Kits: $15.

Standard bolt length is 2.5" - for 1/4" thick teflon and 0.035" laminate.
Use this DIMENSIONAL DIAGRAM to determine bolt length you need.

Rocker box parts included:
3/8-16 stainless steel bolt (various sizes available).
3/8" ID flanged bearing sleeve (fits 1/2" hole).

Ground board parts included:
3/8" weld nut.
Three 1/8" screws to secure weld nut.
3/8" nylock.
 
Select bolt length:

ATM Order Shipping Costs:
Separate PayPal shipping invoice sent after receipt of your order. Inquire for non-US/Canadian destination costs.

  • Setting circle to 23.5": $16 U.S., $30 Canada. Can include Teflon pads. Add $5 to include: laminate strips, azimuth bolt assembly kit.
  • Setting circle to 19.5": $10 U.S., $25 Canada. Can include Teflon pads. Add $5 to include: laminate strips azimuth bolt assembly kit.
  • Laminate ring to 23.5": $16 U.S., $30 Canada. Can include Teflon pads. Add $5 to include: laminate strips, azimuth bolt assembly kit.
  • Laminate ring to 19.5": $10 U.S., $25 Canada. Can include Teflon pads. Add $5 to include: laminate strips, azimuth bolt assembly kit.
  • Laminate round: $10 U.S., $25 Canada. Can include Teflon pads. Add $5 to include: laminate strips azimuth bolt assembly kit.
  • Laminate strip: $10.00 U.S, $25 Canada. Teflon pads and azimuth bearing assembly can be included at no extra shipping cost.
  • Azimuth Bolt Assembly Kit: $5 U.S., $10 Canada. Teflon pads can be included at no extra shipping cost.
  • Teflon pads: Free U.S. Shipping, $5 Canada.