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by 4DThinker
Mon Mar 16, 2020 10:13 pm
Forum: Open Talk
Topic: Desperate for some advice
Replies: 6
Views: 1692

Re: Desperate for some advice

Good to hear, Terry! Glad you got it sorted out.
by 4DThinker
Mon Mar 16, 2020 12:09 am
Forum: Open Talk
Topic: Desperate for some advice
Replies: 6
Views: 1692

Re: Desperate for some advice

That must be a new policy as I've never had them charge me or mention a change when I've contacted them. In any case check all the cable. If they all seem tight, you might unhook and check continuity end to end on every pin.

4D
by 4DThinker
Mon Mar 16, 2020 12:06 am
Forum: Machine Mechanics
Topic: Replacing drive nuts on all three axes
Replies: 3
Views: 1048

Re: Replacing drive nuts on all three axes

New bearings on my Z axis have reduced the amount of flex, but not completely eliminated it. Y and X axis bearing are just as old. I'm not quite sure how to trace deflection up from the bit to the Z axis assembly then the X axis assembly then the Y, but I may order new bearing for Y and X anyway. 4D
by 4DThinker
Sun Mar 15, 2020 11:56 pm
Forum: Open Talk
Topic: Desperate for some advice
Replies: 6
Views: 1692

Re: Desperate for some advice

Check the parallel cable. All signals from the PC to the controller go down that cable. If it is loose even a bit on either end and one or more lines are not connected it'll cause problems like you've experienced. You should also make sure all the cables from the CNC are well connected to the contro...
by 4DThinker
Thu Mar 12, 2020 1:10 pm
Forum: Machine Mechanics
Topic: Replacing drive nuts on all three axes
Replies: 3
Views: 1048

Re: Replacing drive nuts on all three axes

Now that my drive nuts have arrived and been installed, I ran the same file on a piece of red oak. Same measurable deflection on the oak as was on my original sample cut in ash. I set up a way to see if and how much my router bit could deflect under load, and found the bit could be moved about 1/32&...
by 4DThinker
Sat Mar 07, 2020 10:39 pm
Forum: Machine Mechanics
Topic: Lost Second Y Axis Motor
Replies: 2
Views: 932

Re: Lost Second Y Axis Motor

Make sure all your cables are well connected. What you described is exactly what a new GX2525 did when first turned on. A new parallel cable resolved the issue. Must have been a poorly connected wire within the cable they sent with it. It seemed to run fine, except the right Y stepper kept losing st...
by 4DThinker
Sat Mar 07, 2020 8:11 pm
Forum: Machine Mechanics
Topic: Replacing drive nuts on all three axes
Replies: 3
Views: 1048

Re: Replacing drive nuts on all three axes

To make sure the new drive nuts returned the meteor to its original precision status, I made up a quick set of toolpaths to cut in a scrap of hardwood that I could then measure after they were cut. My personal meteor is a year older than the one I use at work, so I thought it might be worth checking...
by 4DThinker
Sat Mar 07, 2020 3:21 am
Forum: Machine Mechanics
Topic: Replacing drive nuts on all three axes
Replies: 3
Views: 1048

Replacing drive nuts on all three axes

Our old Meteor finally started complaining about cutting perfectly and jogging quietly. After tolerating the noises I finally couldn't accept the growing precision errors when cutting hardwoods. So with info from Len at Probotix we ordered new drive nuts for this Meteor. The X and Y nuts are all the...
by 4DThinker
Fri Nov 08, 2019 4:05 pm
Forum: Projects
Topic: Adjustable Angle Clamping Fixture
Replies: 27
Views: 32942

Re: Adjustable Angle Clamping Fixture

The stand pictured above with the truss stretchers have proven much easier to work with than the other two Probotix CNCs we have in the same room. The openings in the stretchers let me reach through them to add or remove a clamp on the jig. That simple change (from solid to perforated stretchers) wa...
by 4DThinker
Fri Nov 08, 2019 3:59 pm
Forum: Projects
Topic: Joints Anyone
Replies: 87
Views: 62680

Re: Joints Anyone

The rotary finger joint both sides:

rotary finger joint.jpg
rotary finger joint.jpg (139.29 KiB) Viewed 1467 times

4D

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