Search:

Would like to move to a spindle over my Colt router setup for several reasons. Desktop CNC noname custom built with Mach software. Works great with Colt but would like to improve with dust boot and...

I don't have the speed information you are looking for, but one thing I can recommend is going to PreciseBits (website) and get their precision collet. Best money spent, you will have runout with...

What's the clearance from the bottom of the Gantry to the working surface if say you put in a T-slot insert? I looked around and basically looking for what the Z travel spec is or range. Currently...

Well the answer is:

I am using steppers

The Z-Axis was sort of mis-aligned. There was no end bearing or thrust bearing. Just out there free to the world (I didn't build this).

The nut...

Really? No guesses, theories, thoughts?

Did I post this in the wrong place?

When I jog thru the area where the majority of the time the z-axis operates during a job it makes a howling noise. Like a loose fit and dry so it can vibrate and make the noise as it travels thru...

Thanks, not sure how, but I was lucky enough to find replacement parts locally today, not many local stores left these days. The rectifier had taken a dump as well. I replaced both and added a heat...

Another question would be why after 12+ months did the transformer even fry?

The machine has been working beautifully. Is a stepper starting to draw more current because of wear etc? If that...

Not sure what I should do. Have the typical HobbyCNC linear power supply that was built with the 'alternative' transformer that fried the secondary. I have very low confidence now in the rectifier...

I bought my first cnc machine last February and have learned tons since. I stumbled onto this by accident (hey, there are thousands of threads on this site) and was thrilled to see this and read...

Sounds like I need figure out how to change the step mode first?



I applied to the HobbyCNC Yahoo Users forum group to see if I can get some tech data on this controller for my own reference. ...

Yes, they crap out at 90 ( I tested at 60,70,80 and 90).

You would be much better off to go to a 2 or 4 start screw/nut
This I'm not sure what that means, but I'll look it up.

Thanks for all...

An email I got sometime back from the builder stated that it was either 1/2 step or 1/8 step.

Should be half step. 10 TPI x 200 steps per revolution = 2000 X 2 (half step) = 4000 per inch
...

At X, Y and Z I measured .474, .467 and .445

Looks like it was the right place to measure

I also went to their website and saw what you meant about the heat sink. I may want to attach a chunk...

Yea, I can measure it, just not sure where the points are for taking the reading. I have no documentation with this, so I don't know much about it. Can you tell me where to do this?

Would it be...

The first link 'controller.jpg' is the entire case/electronics. All that's in that box is the transformer, 2 large caps, bridge rectifier and the HobbyCNC board.

The parallel cable coming out of...

Turns out it was easy to open. Now maybe the mystery will be solved as to what controller is this etc,

http://www.markdidit.com/pic_tank/controller.jpg
...

I'll have to figure out how to bust open the case without damaging it (it's plastic with some sort of interlocking I would imagine around the seam.).

System should be large enough, I'm actually...

That I did find sometime back.
Pn: 57BYGH405

Attached is the pdf doc of specs I found on it.

It will move some maybe a .5" then stall with a 'cool' sound. That's holding the key down. If I tap it, then it's ok for short bursts, so basically it can't do it. I'm getting fair results on a...

Tried the acceleration at 1, made no difference from 90 above. Even at 70 - 90 I don't get a good clean smooth operation. So it looks like 60 is my magic number and I may have to look at upgrading...

I know that the screws are 10 tpi. Any specs other than what I have are unknown to me. I would have never bought this system knowing what I know now (still need to know a whole lot more).

I have...

Hopefully I put this in the right forum.

I have a generic sim I bought from a guy out east and now I can't get ahold of him. I'm trying to cut some cast acrylic with some bits where I need...

Well, timing pulleys usually use a square tooth and related belt? I can't say if this is capable of creating that (the gear software). That doesn't mean it can't be created using geometry method by...

I have been using .240" CAST Acrylic (actually measures around .233") for my current project. I have a 3-axis desktop cnc where most of the time I have a 12x12" piece of the acrylic just clamped to...

Thanks!

I used a 1mm bit and it took about 20-25 minutes each. With such a small bit and the material is .234 thick, I made 6 passes. I was too worried about the time it took. Cheaper than...

As promised, pic of a couple of gears I cranked out.

.6 pitch circle diameter and 1.75

http://www.markdidit.com/project45/firstgear.jpg

Andre's resolution worked flawlessly. It's much easier using the .vbs file.

The trick is just flipping from inches to millimeters and back again.

Loaded the file into Mach3 and it cut like a...

I will try creating/cutting the gear tonight. I want to also mention that Andre mentioned the following:

Create a .vbs file of the gear profile.

Start the CAD systems and set the units to...

Good question, I came to the same conclusion you did.