strengthen z-axis of the classic Zoltar

[oscar]

By attaching  the Kress engine the way I did
the z-axis bends in one direction when used.

I found out with heavy using the round holes become slightly oval.

My plan is  to replace the vertical plate by a 12mm thick aluminum plate.
then use the same brackets for the kress motor.

[OldRaven]

Hey Oscar,

I have the same problem.
Also need to strengthen this for my kress.

Peter

[oscar]

I am now cutting and sanding the 12mm alu block.

Without an CNC machine!

I will soon post the result here.

[oscar]

Lets hope it brings the results I expect.

@ Chris : What do I use to glue the bearing to the lowest plate ( CA glue ? )

[Chris@home]

Hello Oscar,

Seems you are having a lot of fun there....
Upgrading the original 2001 first prototype after 13 years of service.

Thats great!

The bottom bearing does not need a seat / support and was self aligning.
Once the driveset is in position and running smooth,
you can add a drop of loctite thread locker to the edge of a bearing and
the bottom plate - if wished.

BTW, check the backlash on your delrin nuts - trapezium screws,
do minimize that with the setscrews and it will work as new.

Enjoy!

-chris-

[OldRaven]

Oscar,

Where did you get the aluminium holders for the fress that are mounted on the backplate?

I could really use those too...   yes yes..  I know. . I can mill them myself..  but I'm to lazy to do that

[oscar]

Oscar,

Where did you get the aluminium holders for the fress that are mounted on the backplate?

I could really use those too...   yes yes..  I know. . I can mill them myself..  but I'm to lazy to do that

Made them myself.
If you like I can search for the Cad file.

Oscar

[OldRaven]

Hi oscar,

That would be great!

thanx

Peter