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It Sounds like your software settings have the Z motor direction set the same for up and down. You should be able to check in the motor direction properties in whatever software you are using.

I may have missed something but I do not see anywhere in his post that mentions a UC100 fake or otherwise ?

@Gaz2203, what is the issue you are having, some more detailed info would really help...

Yes I use it with metric, just remember to change the dimensions in the script, eg. if the time out for centre detection is '2' then you are going to only have a 2mm distance before timeout rather...

When I fitted my mount which is the same as yours, the middle bolt which is used to slightly open the clamp so that the spindle will easily slide into position only needed to be nipped up by about an...

Check your I/o port address in windows as well (if you have not already). On board parallel ports usually use one like 3F8, 2F8, 3E8n or 2E8 when using a pci parallel port check its address and make...

Personally I went for the 1k5 water cooled spindle which was advertised as German bearings. I had to remove the top cover to change the 3 pin connector to a 4 pin connector and attach the ground...

Wow, A_Camera that is really unlucky that your clamp broke this way and I'm glad you had no injuries when it broke as it could have been pretty serious if you were milling when I happened. I have the...

As you have fitted a seperate parallel card (PCI card) I am going to guess your motherboard does not have a parallel port built on to it. This is why it does not show in the BIOS, you will have to...

I fitted the 1k5 water cooled spindle which is 65mm, when making my G-code I use a small feed rate on the Z of 15-30mm/min in alloy as if the Z feed rate is high I can see the gantry flex a little...

I had already made the 6mm stepper housing spacers which took only 5 minutes to cut on the existing cnc3040 machine, I cut out 3 of them for when I upgrade the other two steppers. I'm happy to say it...

If you use a DMM to confirm connection of the spindle to ground you will likely find that the body of the spindle IS connected to ground but if you try the to meter out the tool or collet/chuck to...

These stepper motors are a definite improvement over the originals ones. I only got the one stepper to replace the damaged one in my setup but I will be replacing the other two now that I am happy...

I have done many mods to my CNC3040 and have fitted a water cooled 1k5 Spindle, the machine is so much better now and I use it mainly to cut out alloy enclosures for guitar pedals. The new spindle...

Thanks again Jeff,
I will get 3 of those type couplers.
Amazing bit of luck just now as well , just as I am finding out the couplers I ordered were poor quality the ebay vendor sent me a message...

Jalessi, the PSU does has an adjustment preset to set the voltage. What do you suggest for a voltage cushion ? something like 42v ?

The couplers are cheap and I bought a few from this ebay link,...

Sounds good to me John, using that maths the stepper PSU voltage looks a good match, the DQ542ma drivers voltage range is 18v-50v so that looks good as well. I think I will go for these steppers, I...

Thanks for the tube idea but the 6.35mm to 8mm couplers are only £2.30 each delivered so I have already ordered some of these.

Thanks Jeff,

The price including taxes and shipping works out at £82 for the 3 steppers which seems very reasonable. I need to add in couplers as well because the old steppers had 8mm shafts and...

I wonder if I can get some advice on the if the steppers I am looking at are suitable for my psu and driver combination.

I have just finished building my controller which uses a 48v PSU and Wantai...

Good advice.

It seems to me the best and simplest way to wire both the VFD and the 120v equipment is to use the one source that has been wired in by your electrician. It has been wired with 4 core to provide both...

Another little update to the controller PC - the drivers and bob arrived so I have wired tem all in. the signal wires are temporary and need to be tidied up but the rest of the wiring is now complete...

If you are using this with a parallel port and Mach3 , you must use 32 bit operating system as a PC won't run this on a 64 bit OS, If you are running 32bit OS first turn the E-Stop button clockwise...

NEW UPGRADES

It's been a while since I have posted anything about updates and mods to my CNC3040, so far it is still using the Chinese controller and steppers. The 1k5 water cooled spindle and...

The thread looks 11 years old, the guy never answered any of the posts to help him , I expect he gave up or got it sorted :)

If you have you Z axis working correctly then you can try out the X-Y axis motors by swapping the wiring over to the Z axis one at a time to test. If the x or y axis motors do not work on your Z...

Cheers Squirrel, I have just downloaded these I am needing to use the OD Rectangle probe to set the X Y zero position, This sounds exactly what I was looking for.

I have exactly the same VFD and a water cooled Chinese spindle, I also am in the UK.

First UK mains is NOT 13 amp, each ring main for sockets will have a 30 or 32 amp breaker in the consumer...

Hi,
I believe the cable outer should actually fit into aviation socket to provide strain relief, If it is clamped by the shield and internal cores only, it will fail at some point.

You can get them cheaper as Louis mentioned. I needed the collets delivered a little quicker by getting them from a UK supplier I probably ended up paying a little more. The link below is where I got...