MechMate CNC Router Forum

Go Back   MechMate CNC Router Forum > Structure & Mechanics > 10. Base Table
Register Options Profile Last 1 | 3 | 7 Days Search Today's Posts Mark Forums Read

Reply
 
Thread Tools
  #1  
Old Mon 10 August 2009, 05:58
gixi
Just call me: Marius (AVO) #32
 
Bucharest
Romania
Send a message via Yahoo to gixi
Surfacing the table

Copied from elsewhere:

Well in order to be correct to all members I should wait a few days to make some SMALL adjustments to the X rails.
What happened ? After finishing the small cuts I put the bit on zero. Then using the jog I start to move the spindle along X and Y axis. Surprise ! In some area is not touching the table and in other to much. When I remeasured the X rails I found small differences in the height of the rails (27.5mm, 27,8mm, 27mm, etc.). So for the moment I send the rails to a metalworking shop to fix that.
But this is a small issue compared to the beautiful moment when something appears on the wood !
At the end of the week everything should be set properly.
Reply With Quote
  #2  
Old Mon 10 August 2009, 06:17
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
Marius, we do not worry about small differences in rail height . . . .

First we screw the rails down as straight as what we can. Normally we have to add thin plates (shims) where the rails are too low, or where the big channel irons have problems. With the shims we can get a very straight rail. A popular shim is cut from a beer tin/can.

Then we take a 25mm cutter and cut the whole table surface to be parallel to the rails. We call this "surfacing" or to "surface" the table.

So, with a combination of shims and surfacing, the cutter runs exactly parallel to the table.
Reply With Quote
Reply

Register Options Profile Last 1 | 3 | 7 Days Search Today's Posts Mark Forums Read

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Gcode for surfacing table DMS CNC motion control software 2 Sun 12 October 2008 10:09


All times are GMT -6. The time now is 00:46.


Powered by vBulletin® Version 3.8.3
Copyright ©2000 - 2023, Jelsoft Enterprises Ltd.