Mlbz420
Aluminum
- Joined
- May 1, 2006
- Location
- Southern California
I have a blanchard ground aluminum subplate 14 X 33 x 1- 3/8. it is bolted directly to the machine table in each corner so 4 bolts total.
my question was, being that it is twice as long as it is wide should there be some kind of bolt in the middle?
after looking up previous posts about sub plates and how they expand im wondering if the center of my plate is rising as it expands faster than the table itself, it must. would adding a center row of bolts do more harm than good?
My second question is, does using a sub plate reduce the rigidness of a setup? if im doing some heavy milling in a vice bolted to a sub plate will i see any adverse effects? particularly given that the center isnt held down.
First thing tommorow morning the plate is coming out while i clean the machine and check some things and im debating whether i should put it back in. it came with my machine and the previous owners used the plate to hold 3 chick quicklock vises and mostly drilled holes with the machine.
I dont really need it. most of my parts go into vises or get bolted on top of fixtures so i wont miss it if it is causing me any problems. I do like using studs and bolts instead of t-nuts though.
my question was, being that it is twice as long as it is wide should there be some kind of bolt in the middle?
after looking up previous posts about sub plates and how they expand im wondering if the center of my plate is rising as it expands faster than the table itself, it must. would adding a center row of bolts do more harm than good?
My second question is, does using a sub plate reduce the rigidness of a setup? if im doing some heavy milling in a vice bolted to a sub plate will i see any adverse effects? particularly given that the center isnt held down.
First thing tommorow morning the plate is coming out while i clean the machine and check some things and im debating whether i should put it back in. it came with my machine and the previous owners used the plate to hold 3 chick quicklock vises and mostly drilled holes with the machine.
I dont really need it. most of my parts go into vises or get bolted on top of fixtures so i wont miss it if it is causing me any problems. I do like using studs and bolts instead of t-nuts though.