CNC Manufactured

Dobsonian Mounts
Current lead time: 6 weeks.
Overview of Mount Choices.

Standard Solid
Custom Solid
Custom Collapsible

Digitial Setting Circles installed:
Sky Commander
Stand Up! Dob Height Stands.
Cells & Image Sharpening
Current lead time: 1 week.
Mirror Cells.
Mirror Masks.
Aperture Masks
Sharpen Those Double Stars!
Altitude Bearings & ATM
Current lead time: 1 week.
Altitude Bearing supports
Bearing Teflon and Laminate.
Fixing Awful Small Bearings.
Standard Altitude Bearings.
Rings For Telescope Tubes
Upcoming Items
Contact us to inquire.
Mirror Box Integrated Cells.
Rotating Tube Rings.

Upper Tube Assembly Rings.
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Altitude Bearings 

12" Big Bearings.

5" factory bearings.

12" Big Bearings: Easy To Replace
Awful Unstable Factory Bearings.

The 5" factory bearings standard on mass produced Dobsonian telescopes use clumsy fixes to try curing their inherent balance problems. This easy fix attaches directly onto your existing small bearings eliminating the design mistake.

Customized with hole patterns matching your bearings, Big Bearings are 12" O.D. and ride on accompanying bearing supports outside your rocker box. Bearings supports screw onto your mount sides. Remove the original mount "Teflon" and the Big Bearings are ready. We now incorporate or Bearing Fine Tuning Guides into our Big Bearings, allowing for friction adjustment, alignment and securing your tube.

All parts included: bearings, supports, support screws, teflon, bearings laminate, fine tuning assembly. Requires glue, screwdriver and longer bearings bolts. We will confirm your existing bolt spacing and modify this design to match.


Standard 12" bearings with carrying handle utouts, supports and guides.

Standard 12" and 18" Bearings.

Standard 12" and standard 18" altitude bearings with optional incised channels for fine tuning guides and sideboard supports. Both 12" and 18" designs incorporate a handle opening to allow easy lifting and carry of your telescope. Inside braces (shown at left) are individually designed and cut to match your telescope tube outer curve. Choose among these options:

  • With 3/8" center hole for bolting to you tube.
  • Holes to mount to your existing tube ring set.
  • No mounting holes (drill your own).
  • Curved bearing braces with matching bearing holes.
  • Fine tuning guides, channels and sideboard supports.
  • Other custom sizes upon request.

Carry handles are built in.

Standard 18" bearings

Bearing Guides (fine tuning)

Bearing Braces

Bearing Supports

Assorted Bearing Parts

Bearing Braces

Bearing braces attach to inside facing surface of your altitude bearings. Custom cut to your tube diameter. Kits only.

Bearing Supports

Bearing Supports are for 8" to over 23" diameter bearings, includes Teflon pads and screws. Specify diameter. Kits only.

Bearing Guides

Inside bearing facing side recessed 1/8" to not rub, and curved to match your sideboard cutout. 1/4-20 nylon screw tightens within inset threaded insert to desired friction in corresponding bearing channel. Kits only.

Assorted bearing parts come as unfinished kits. You fine sand and paint/finish. All holes in wooden parts and Teflon are predrilled and countersunk. #12 wood screws, #4 screws for Teflon, bearing laminate, nylon 1/4-20 screw and threaded wood inserts included. Wooden parts arrive rough sanded with 80 grit sandpaper.