TUBE HARDWARE

The following items can be used in conjunction with the sonotubes offered in this catalog:

DOBSONIAN TUBE BEARINGS (HUBS)

The following tube bearings are bolted onto the tube and are used as the pivot point to move the tube up or down. The bearings are made out of injection molded plastic. The tube upon which they would fit best would be those sizes set out in the column below.

DOBSONIAN TUBE BEARINGS

DESCRIPTION

APPROX. OUTSIDE TUBE DIAMETER

BEARING SIZE—DIAMETER X WIDTH

PRODUCT CODE

6" Primary Mirror

7.00

4" Diameter x 1" in Width

BEAR600

8" Primary Mirror

9.30

4" Diameter x 1" in Width

BEAR800

10" Primary Mirror

12.36

4" Diameter x 1" in Width

BEAR1000

12.5" Primary Mirror

14.45

4" Diameter x 1" in Width

BEAR1250

 

 

HELICAL FOCUSER EYEPIECE MOUNT

These 1.25" low-profile focusers are black anodized and designed to fit any tube diameter. Focusing is achieved by rotating the eye piece holder.

The unit has been engineered to provide a mount to hold a secondary mirror stalk. A list of stalks follow that will fit

the mount on the focuser.

HELICAL FOCUSERS

DESCRIPTION

PRODUCT CODE

1.25" Helical focuser eyepiece mount

HFXX125

2.00" Helical focuser eyepiece mount

HFXX200

 

 

SECONDARY MIRROR STALKS FOR HELICAL FOCUSER

DESCRIPTION

PRODUCT CODE

Secondary mirror stalk for a 4.25" and 4.50" scope

HFSMS425

Secondary mirror stalk for a 6.00" scope

HFSMS600

Secondary mirror stalk for a 8.00" scope

HFSMS800

 

SPIDER AND DIAGONAL HOLDER

The spider consists of four vanes which are made out of .035" sheet steel. The width of the vanes have been engineered to support the secondary mirror holders with the least amount deflection. Because of their design, there is minimum obstruction in the light path.

The secondary mirror holder has been design to mount onto the center of the spider. The holder has adjusting screws to facilitate the collimating of the entire system.

FOUR VANE SPIDERS (DIAGONAL HOLDER NOT INCLUDED)

DESCRIPTION

RECOMMENDED TUBE SIZE

PRODUCT CODE

6 inch mirror tube

7.00"

SPIDER600

8 inch mirror tube

9.05"

SPIDER800

10 inch mirror tube

12.00"

SPIDER1000

12.5 inch mirror tube

14.00"

SPIDER1250

13.1 inch mirror tube

14.00"

SPIDER1310

16 inch mirror tube

18.150"

SPIDER1600

 

DIAGONAL HOLDER HOUSING AND MOUNTING STEM (SPIDER NOT INCLUDED)

DESCRIPTION

DIAGONAL SIZE

PRODUCT CODE

4.25 inch mirror tube*

1.00"

DIAHLD100

6 inch mirror tube*

1.30"

DIAHLD130

8 inch mirror tube*

1.52"

DIAHLD152

8 inch mirror tube*

1.83"

DIAHLD183

10 inch mirror tube*

2.14"

DIAHLD214

12.5 inch mirror tube*

2.61"

DIAHLD261

13.1 inch mirror tube*

3.10"

DIAHLD310

14.5 inch mirror tube*

3.25"

DIAHLD325

16 inch mirror tube*

3.50"

DIAHLD350

17.5 inch mirror tube*

4.00"

DIAHLD400

 

 

NEWTONIAN MIRROR CEILS

Two types of mirror cells will be offered after August 1, 1996. The first type is made from wood and has mounting hardware for the end of the tube. These units have adjusting hardware for collimating the mirror.

The second type of cell being offered is cast aluminum. These units are also designed to mount near the end of the tube. These units have adjusting hardware for collimating the mirror. This units require assembly and are as cast. They will need to be painted with a flat black paint or black anodized

 

WOOD MIRROR CELLS

DESCRIPTION

RECOMMENDED TUBE SIZE

PRODUCT CODE

Cell for 6 inch mirror tube

7.050"

WMCX600

Cell for 8 inch mirror tube

9.050"

WMCX800

Cell for 10 inch mirror tube

12.00"

WMCX1000

Cell for 12.5 inch mirror tube

14.040"

WMCX1250

Cell for 13.1 inch mirror tube

14.040"

WMCX1310

 

ALUMINUM MIRROR CELL KITS- HEAVY DUTY-ADJUSTABLE TUBE MOUNT

DESCRIPTION

RECOMMENDED TUBE SIZE

PRODUCT CODE

Cell for 4.25 inch mirror ADJUSTABLE 5" TO 5.5" DIAMETER

AMCX425

Cell for 6 inch mirror ADJUSTABLE 7" TO 8" DIAMETER

AMCX600

Cell for 8 inch mirror ADJUSTABLE 9" TO 10" DIAMETER

AMCX800

Cell for 10 inch mirror ADJUSTABLE 11" TO 12" DIAMETER

AMCX1000

Cell for 12.5 inch mirror ADJUSTABLE 13.5" TO 14.5"

AMCX1250