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Howdee Rift,

Yes, I think you have hit on the right answer. A device like this will greatly reduce the degree of vibration transfer to the rest of the machine frame.
I suspect that a flywheel...

Hi Rift,


Hmmm, having seen the videos that you have listed, I feel that the shaft mounted resonance damper may not be so helpful afterall.
I am guessing that the noises are coming from panels...

Howdee Rift,

You are welcome :) .
These devices are mounted on the two motors that drive the Y axis of my machine. before I applied them, it was impossible to get the Y axis to complete its...

Hi Rift,


Here is my solution to the single ended motor problem:

http://www.cnczone.com/forums/432326-post101.html


This works by adding a rattler to the motor-shaft coupler.
It...

Hi John,

Congrats on the new driver boards :) .
You'll be up and running in no time.

Thank you for the data on the parts on the Stepperworld board. Its design is very much as I had...

Howdy Budp,

Yes, that is very good advice. The electrical kickback from the motor coils can send the chips to 'silicon heaven', if the connections are interrupted while the power is on.
Always...

Hi John,

It looks like you have gained some interesting observations from the tests I suggested. At one point, you may have discovered a faulty mosfet, or level translator.

Now that I know...

Howdy John,

Perhaps there is a problem with the power mosfets on the circuit board.
In your videos, it sounds like the motor is running on '3 cylinders' instead of 4.
This will cause them to...

Hi CKTOS,

Coppercam should be able to read your Gerber files.
I have tried mine with a number of different ones, and it has worked well.

From this site:
...

Hi Jdkerr,

CopperCam is a very good choice.
It's wonderfully easy to use and is rather interesting to watch as it graphically processes the Gerber file.
I have been using it with Altium to...

Howdy folks,

I have 2 dampers in use on my machine. Both are based on a ring that is a close fit to a hub, or sleeve.
My motors are single ended, so I had to design something that would share...

Howdy Jimc,

Al's idea for starting the motor is a good way to keep it working while you find a way to get it back to its former glory.
This method can also help to tell you if your start...

Howdy Cxixer,

As the motors are not wired directly together, I am guessing that they have their own driver units. This will change the way they behave, often making them less likely to affect...

Howdy Cxixer,

Please forgive me if this question has already been asked, but is the motor current within specs?
It appears that this problem has shown up recently, without any obvious reason. If...

That's great news about your vibration damper :) .

Whoever came up with the original idea, should be congratulated.
It certainly rescued my machine during the earlier parts of the build and...

Hi Kym,

Thank you for reviewing the code.
It works nicely on the PIC16F28A.
All 4 outputs are sequencing as they should be.

I just wonder, have you been able to get the finer resolution...

Hi Paul,

When I built my unit, it was intended to be full step only.
My machine is big and heavy, so fullstep is all it needs.
While these simpler versions are capable of half step, I don't...

Hi Telyadi,

The code I have written is full step only, as my machine would not benefit from half stepping.
I tried the Linistepper code for its half stepping functions, but it doesn't seem to...

Hi Paul,

I just tried your copy of the HEX code. It works perfectly :) .
It activates pins 10,11,12,13 in a repeating and reversable sequence.

Just to confirm, you have tested the '4-7' and...

Ok,

I will try this to see how my chips like it.
While I do this, please try the '4-7' code I have posted.
This will drive pins 10,11,12,13 and should let you see if those outputs are working....

Hi Paul,

Here is the same code again, but with focus on the upper half of Port B.
This will drive pins: 10,11,12 and 13.

Please give this a try, as it works for my chips, so should be good...

Ohhh, I see.
I had thought that one of the pins was never going high.
Not enough coffee in my blood stream ;) .

Can you read your chip - and post the HEX file that you get from it?
I would...

Hmmm, strange, it worked for me.
I tried it on 2 different PIC16F628A chips, and they were good.

Are you sure there aren't any shorts in the area of pin 9?

Howdy Cxixer,

As you are using steppers on your machine, perhaps you are seeing the effects of resonance in them.
This has some very undesirable effects, including unexpected stalling.

One...

Hi Paul,

No, unfortunately, the code appears not to be fully operational.
Which one did you use for your latest test?

Please put 'Lini 01-628.hex' in the Micro.
This will produce the...

Ok, set it up so it uses output pins 6,7,8,9.
Use 10 to 16MHz crystal.
PIC16F628A.
Set all mode inputs to ground.
Use "Sstepper0-3.hex" from this post:...

Please describe your present build, and I will suggest the correct file and config for you.


Cheers,
Steve.

Uhmmmmm, which build is yours?
I confuzzled!

No, you need a nice cold beer :) .

An Exorcism will mess you hair up ;)

Hi Paul,

Yup, these are indeed the same. When I designed my motor driver, I discovered that it was almost the same as the Linistepper. Because of this, I used the Linistepper code :) .

As you...