Supply correct diameter of smooth rods.

Post Reply
ADVALL
Posts: 8
Joined: Tue May 24, 2016 7:28 am

Supply correct diameter of smooth rods.

Post by ADVALL » Thu Jul 14, 2016 6:29 pm

My smooth rods as supplied are undersize and cause much wobble. They are 7.91 mm diameter NOT 8.00 mm diameter.

User avatar
William
Site Admin
Posts: 6340
Joined: Tue Jun 07, 2016 9:38 am

Re: Supply correct diameter of smooth rods.

Post by William » Fri Jul 15, 2016 11:32 am

ADVALL wrote:My smooth rods as supplied are undersize and cause much wobble. They are 7.91 mm diameter NOT 8.00 mm diameter.
Hi,
Did you tighten the screw as the picture shows?
1.jpg
1.jpg (18.4 KiB) Viewed 7558 times
As for the wobbling of Z axis,you can print a part to see it is helpful,and download it from this link:https://www.thingiverse.com/thing:1204200
-Keep your mind and try to test it. :)
-Everything will be fun!-Support all Getech printer.
-You can ask me the questions and I will kindly reply.
-Respect others is the best way you can get help!

ADVALL
Posts: 8
Joined: Tue May 24, 2016 7:28 am

Re: Supply correct diameter of smooth rods.

Post by ADVALL » Fri Jul 15, 2016 11:47 am

There is no work around that can turn 7.91 mm rods into 8.00 diameter which is required to fit a 8.00 mm linear bearing!!!!

The suggestion to tighten the circular collets will not change the rod diameter or reduce wobble to that of near enough to zero that a 8.00 diameter rod provides. The hard chromium heat treated alloy steel rods is the industry standard and they are 8.00 mm diameter.

In addition stainless steel is a very bad material choice as it is very soft being not capable of hardening by heat treatment and will wear excessively.

The rod you supply are simply the WRONG size and bad material choice!!!

User avatar
William
Site Admin
Posts: 6340
Joined: Tue Jun 07, 2016 9:38 am

Re: Supply correct diameter of smooth rods.

Post by William » Fri Jul 15, 2016 12:00 pm

ADVALL wrote:There is no work around that can turn 7.91 mm rods into 8.00 diameter which is required to fit a 8.00 mm linear bearing!!!!

The suggestion to tighten the circular collets will not change the rod diameter or reduce wobble to that of near enough to zero that a 8.00 diameter rod provides. The hard chromium heat treated alloy steel rods is the industry standard and they are 8.00 mm diameter.

In addition stainless steel is a very bad material choice as it is very soft being not capable of hardening by heat treatment and will wear excessively.

The rod you supply are simply the WRONG size and bad material choice!!!
Hi,
Such being the case,you can contacr the seller for replacemet.
Regards
-Keep your mind and try to test it. :)
-Everything will be fun!-Support all Getech printer.
-You can ask me the questions and I will kindly reply.
-Respect others is the best way you can get help!

Post Reply