I have a BT48, and can't find instructions on HOW to adjust the Z-axis. Is it possible that I should be monkeying with the rollers?
I have a BT48, and can't find instructions on HOW to adjust the Z-axis. Is it possible that I should be monkeying with the rollers?
for left and right adjustment loosen the router mount and there is play in the holes to twist it.
The other way would be more serious.
Kenneth
thnx. So, there's no designed adjustment? And, if I need Z squaring against the X-axis, I would use shim stock?
Denis...
There is room for adjustment in the bolts holding the Gantry extrusion to the side plate. I have used this method in the past and it works well.
Gary
thnx. (btw, this is a 12" Z)
There is an angle bracket supporting the gant. I'll need to shim that?
Denis...
There is more info here in my column about "Tuning the PRS Gantry" Look in the section under "Plumb Spindle"
http://blog.shopbottools.com/index.p...he-prs-gantry/
Gary
thnx Gary.
As it turns out, all of the rollers on the control end of Y were at least .05" low. Also, the plate attached to the spindle was not installed square either.
I think one or more people didn't quite finish their jobs, before the unit was shipped. Whoever they are, they owe me a couple of hours.
I appreciate the time you and Kenneth took.
Cheers, Denis
Gary,
is the information you mention at the link shown- available elsewhere? The link in the older post returns no page.
Thanks for any directions to your previous articles about squaring the Z axis on a Buddie.
Cheers,
Kevin Morin
Kevin...
Sorry.... they have moved the pages around. All the Web Columns are here: http://www.shopbottools.com/mPeople/webcolumns.htm
My Page is here: http://www.shopbotblog.com/index.php...garys-musings/
That particular column is here: http://www.shopbotblog.com/index.php...he-prs-gantry/
Gary Campbell
GCnC Control
GCnC411(at)gmail(dot)com
Servo Controller Upgrades
http://www.youtube.com/user/Islaww1
"We can not solve our problems with the same level of thinking that created them"
— Albert Einstein
This is one area that all PRS owners should check and adjust accordingly. If I am not mistaken, the YZ car is not cranked down all the way to the gantry beam to eliminate damage while shipping.
It could be argued that tightening them down all the way might also avoid damage, but personally, I think leaving it loose is a good idea - If for nothing else, it reinforces the idea that the operator should do routine wiggling, shaking and inspection of all moving parts - and adjust as needed. These machines are for the most part, maintenance free. Keep it clean, greased & the YZ car tight and that's about it.
-B
High Definition 3D Laser Scanning Services - Advanced ShopBot CNC Training and Consultation - Vectric Custom Video Training IBILD.com