Search:

It might be interesting to make quantitative estimates at each stage to see how it is affecting stiffness. If you have an indicator set up to measure deflection, and a fish-scale to apply a...

I am surprised that it is only getting 50% of your material; I have a home built system, and it gets it all. Could the double-bristle set be preventing a good air-flow near the cutter? As we say in...

This will happen if the tool's rotation axis is not parallel to the Z motion. "One of the fly-rods has gone out of skew on the treadle"

And Lego tables can double as Thomas the Tank Engine type tables too! Either way, they are always too small ...

Congratulations! And good pick of projects for the first run!

I am glad that you found the problem, but why did the MDI interface work as expected? Is this unique to the ESS interface?

This is a very elegant, clean build. Congratulations on every part of it!

Very cool Jerry! Congratulations!

Thanks Paul, I misunderstood. I thought your were connecting inductance to thermal properties of the motor, with 'not run long enough ...' referring to overheating etc

@plcamp : Could you please explain this ? I always thought that the high inductance affected the voltage/current necessary to get a clean step, every step, not the long-term running state of the...

Are they attached to the machine's drive components during this test, and therefore not under normal loading?

I would try swapping the motors, then swapping the drivers, to see if one set is not...

On the positive side, I believe LinuxCNC can have kinematic routines written (HAL ?) to do the conversions on the fly.

Nick, I have used hose clamps and they work if they are firmly mounted. In your picture, it looks like the clamps make a complete loop around the Z plate. Is this true? I think that tightening the...

I bought from Kysan with good results. $25 is a bit of a tough pricepoint though ... And shipping
Stepper Motors:57 mm NEMA 23

Hi Icaru, and welcome to the zone!
I think you will find that unsupported rails won't let you do metal the way you would need, and even wood would be on the edge. Have you thought about V-groove...

I think the vertical design has a lot of potential. I would think very carefully about the stiffness of such a large machine. In the place of a torsion box for rigidity, the one from Patrick's...

Bravo Bob! It is good to see it coming to life. It is a wonderful looking build; odd, you don't look at all the way I imagined ...

You should think about this carefully. You have to see if the speed that it will deliver is acceptable. If speed isn't an issue at all, then any motor can be geared down enough to move any size of...

I don't see that it would be a problem. The machine I am designing now will be built this way, for exactly that reason.

Cool! If it is not too late to make suggestions, try to add a few diagonal braces on the sides. Or perhaps skin in a few sides with sturdy plywood. It will keep the table from racking when the...

You want to do the Z zero very accurately. It improves the cuts, and protects your table and tools. Mach3 does this well, the 2010 ScreenSet (from Ger21) does this even better.

6" Z is common, even though most machines are cutting much thinner material (not many 6" long bits that fit in a router!)
If you put round rod in the 8020 grooves, there is no resistance to roll the...

That is very interesting FreeRider ... I know what you mean about having the weather control your CNC/garage projects!
If the Z motion when off is an issue, you could use the stepper itself as a...

I expect that many of the issues are similar to those found in embroidery machines. Khalid's thread has a lot of information in it ......

The Al plates are trying to achieve stiffness through thickness. You could make a stiffer system by adding ribs that extend perpendicular to the plane of the plates. Stiffness goes as the cube of...

It is so tightly integrated that I am using it as-is, and working towards a separate steel frame / machine approach. Mostly in my head at this point though.

Hi Anthony
I used an office desk as my base. It was tightly integrated into the machine design, probably more than what you are planning. I must say it was my first and biggest mistake, because...

That is very long. Can you see this instability with a voltmeter, perhaps set for AC measurements?
Can't comment on the board or the caps, sorry.

How long a debounce in M3 have you tried? Does it ever improve with longer waits?
Does it trip with the motors powered but not moving ?

Are there bearings underneath the 2x2 rails to keep the moving gantry from jumping up when the wood starts to fight back?