today i saw some square steel material, about 1" in dimension (yeah i just
used your fu***** non metric system ;-) )
it seems to be accurate, but one side is welded in the middle.
i see two options: using 4 ball bearings and 2 spring loaded.
sand down the welding residue (not too much on the outside) and use a
spring loaded bearing this side (needs not to be accurate then)
advantage: symmetrical load
disadvantage: you have to use the sanded welded side and need 4 bearings on
each point (16 per axis)
option 2: use two bearings on two flat sides and a third one on the "edge",
some of the stuff has rounded edges (5mm radius).
i think you can run a bearing on this rounded edge....
how can i measure the quality of these rods?
how can i measure how precise the surface is and how straight they are?
any ideas appreciated
i will make a quick drawing to show you what i think of...
in the photos section soon... (i hope....)
regards
stefan
used your fu***** non metric system ;-) )
it seems to be accurate, but one side is welded in the middle.
i see two options: using 4 ball bearings and 2 spring loaded.
sand down the welding residue (not too much on the outside) and use a
spring loaded bearing this side (needs not to be accurate then)
advantage: symmetrical load
disadvantage: you have to use the sanded welded side and need 4 bearings on
each point (16 per axis)
option 2: use two bearings on two flat sides and a third one on the "edge",
some of the stuff has rounded edges (5mm radius).
i think you can run a bearing on this rounded edge....
how can i measure the quality of these rods?
how can i measure how precise the surface is and how straight they are?
any ideas appreciated
i will make a quick drawing to show you what i think of...
in the photos section soon... (i hope....)
regards
stefan