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I think you will be ok. You can always use a spring on the Z axis to assist the lift, even to the point the stepper has to push the axis down.

John

I have them on the X axis of my DIY router. Seem to work as good as the all steel at a lower cost. My router design has the gantry sitting on the rails, not hanging from them.

John

You need to install the resistors. That will reduce the holding current, lowering the temperature of the steppers. The Geckos should have a resistor even if they are running at maximum current.
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Under the table does look nice. I have a separate support for my rails, under the table.

Those guys are professionals. They build prototypes and test them until they get it right.

Us amateurs...

When I built mine, I chose to not "hang" the gantry and rails. I felt the rail mounting screws were a bit small for such a task. My gantry sits on top of the bearing blocks and the rails sit on their...

For best results, "gear" the machine so you get 1 inch of travel from about 3 turns of the motor. The stepper motors produce most power when spinning slow, so don't be tempted to "gear it down" for...

If I were not already a Mach 3 user to know different, the e-mail ad, and link, sure looks as if BobCad is now developing Mach 3.

Got this in my e-mail today. REALLY??

Skip the Chinese drives. If you have a problem, good luck! The bitterness of poor quality and customer service will linger long after the few dollars saved is forgotten. Go with Gecko and don't look...

I have tried the driver test ( part of Mach 3) on both a CF27 and Cf28, and they both had spikes and dips in the graph. There is no way to completely turn off all of the power management on these two...

I have tried the driver test ( part of Mach 3) on both a CF27 and Cf28, and they both had spikes and dips in the graph. There is no way to completely turn off all of the power management on these two...

I have TurboCAD/CAM v12. I don't know if there is any newer versions of the CAM software. V12 is 2.5D and you have to build your own post processor. I could not get it to make good g-code.

John

I doubt you will be able to tell anything by taking it apart. It may not work correctly when reassembled.

The motor in the photo is rated 2.5 volts DC, and 4.6 amps, as per the label. If it has 4 or 8 wires, it is bipolar. If it has 5 or 6 wires, it is unipolar. That motor looks quite usable to me.
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I found the Slatwall for my router table at my local Menards.

John

Apple does have all of their "Classic" software available for free download at their web site. If you have an old Mac Classic or Quadro, you can still get original software for it.

Without water in the jacket, I would think the empty cavities would act as a heat insulator. There is no way to monitor how hot the spindle is getting with it inside the collector. I'm not knocking...

I like the dust collection idea, but I wouldn't spend the money on a water cooled spindle and run it dry.

Have you tried Ace Converter? I don't use it, but I think it's free.

John

Did the Z work correctly in the past? When you did the step and measurement testing, was the spindle running or off?

After you change the setting, close DeskCNC and reopen. See if that helps.

John

i had a similar problem that turned out to be a bad pin connection in the parallel port at the computer. I sprung the pin slightly and the problem went away.

John

Very interesting! Thanks for the link.

John

Have you considered using a small trim router?

I hate to be the rearer of bad news, but you guys aren't the first ones to have these problems from FLA. I've seen the same kind of questions posted numerous times.

If I were going to build a machine in your size range, I would use rack & pinion. That said, if you stay with screws, I would say a 3/4" multi start screw with as few turns per inch as possible....

Are the drivers set to reduce current for "holding"? Reduced holding current will reduce heat. Steppers can get hot to the touch and not be running too hot. Most have a maximum temperature close to...

For the most part, the greater the distance between the table and gantry, the greater the chance of frame flexing.

John

I agree with CarveOne. My first router used threaded rod. Bad mistake! :nono: For stepper driven systems, try for 3-5 motor RPMs per inch of travel in the X and Y directions. Steppers have best...

I remember that part of the video. Not sure, but I think he says ten thousandths while typing in .001. :confused: