Apocalypse Fabrication Here is a video of the x axis stall and the horrendous noise it makes >< http://s264.photobucket.com/albums/ii175/slprlx/CNC%20Table/?action=view&current=photobucket-56367-1354085901697.mp4
jeepsr4ever What is your motor tuning set to for X? Have you slaved your A axis? Post up your velocity as well.
Sbkats Yes we slaved the a axis already. We set the specs to what you gave Jason. Off the top of my head I think it was 2345.76/800 (which gets auto-reset to 799.8 every time)/40.
Apocalypse Fabrication We set the motor tuning as follows: X,Y and A are 2345.76 steps per 40 Accel 800 velocity Z axis 12000 steps per 20 Accel 90 velocity The same as you instructed me...
Apocalypse Fabrication A separate question I had... Were there supposed to be limit switches included for the z axis? Like this? http://www.bulltear.com/forums/showthread.php?19193-Limit-and-Home-switches After reading that instructional... Where do the two wires that I already have connect in the C&CNC controller box? I put them on the Z home spades, but now I am thinking that was incorrect? Are those wires for the Initial Height Sensor? If so, where should they be connected?
jeepsr4ever Yes those get connected ot the Z axis home. Also there should have been extra wire and some extra switches for limits. Not sure what is happening with your axis movement but I would run a port test from your C/Mach3 directory.
Apocalypse Fabrication jeepsr4ever;132626 wrote Not sure what is happening with your axis movement but I would run a port test from your C/Mach3 directory. I found a "Driver Test" under that directory, but nothing labeled "port test", what am I looking for, specifically?
Apocalypse Fabrication I also mentioned before that the preload on the gantry (x axis) bearings seemed really high (I really did have to KICK them onto the rails). The side plates were significantly harder to put on than the y axis (I bumped it on with the palm of my hand). Would that have an effect on these motors? (X and A)
jeepsr4ever You may need to take them off and back off the pre-load. That would definately cause that issue. With the gears not engauged you should be able to push the gantry without much effort.
Apocalypse Fabrication No, it takes both of us to push the gantry. I will take the damn thing apart... ugh.
Apocalypse Fabrication Ok, got them adjusted properly. Bulltear Gantry Teardown Pit Crew here I come! Im really tired of taking that damn thing apart. Matt, could you please explain what you meant by the Port Test? We will try the g-code motion tests tonight and see if everything is ok, but I'd like to be able to test the ports if it isnt.
Apocalypse Fabrication As an fyi... I had to back the spanners off about 3/16's of a turn to get them to just "bump" on with my palm. You might wanna set up some rails for the assembly guys to test how hard it is to put the damn things on the rail.
jeepsr4ever Gantry kits always take more effort to build than a complete table. The adjustable preload allows you to overload or even underload the trucks. They should have had the correct load when they were shipped. I did catch a guy here overloading a set and let him know it isnt acceptable. I am sorry you had to adjust them! We have rail hard mounted to set preload here.
Apocalypse Fabrication Ok, I thought you would probably have a hard mounted rail to test... Port testing procedure? Shipping the limit switches and wire?
Apocalypse Fabrication Exciting Update: We have smooth movement from the x axis! Everything is responding properly to g code inputs now. Tomorrow the water pan should be bent up and ready for pickup. Then I can weld it up and put the slats and holders in. Then maybe some cutting?! What am I missing Matt? What should we start with as far as cutting goes?
Apocalypse Fabrication Can I run the table without those limit switches? How do I test the ports? What is next?
jeepsr4ever You can start cutting as long as your Z home is responding. To check this go to diagnostics and push up on the Z axis and see if the Z axis home light comes on.
Apocalypse Fabrication Well, I got the water pan picked up last night... Got it placed with the forklift: Got it welded up... and got the slats in... I oriented the slats on the x axis to make it easier to slide the plates onto the table. I also made the water pan 5" deep to allow me to submerged plates and keep the mess contained... (hopefully) I didnt cut anything on the holders or slats, so I can always go back to the stock orientation if this doesnt work.
Apocalypse Fabrication I am planning to install 2- 2" NPT bungs for drains... any opinions on where they should go?
