I have a Silver back 6060. I am cutting with a Yorahome VFD Spindle system and my rotary is a Yorahome 4th Axis Spindel System. My software is Vetric Aspire and I am using G Sender.
I have turned a wooden spindle using my Silverback 4th Axis. I used the Rotary Surfacing feature in G Sender.
The timber I have in my Silverback 4th Axis is roughly 260mm long. For me to get G Sender to rotary surface the whole piece of timber I needed to enter 415mm into G Sender’s Rotary Surfacing feature.
How Do I fix this setting? I would like G Sender to use the same measuring tape as me???
if you move 100mm does it move more or less? how about 200mm ? 300mm? do you have close loop steppers ? open loop stepper motors lose steps like crazy i had some. closed loop are not perfect but way better
do a calibration and calculate the steps per min
What I was doing was rotary surfacing the wood. I put in 230mm and the CNC only moved 110mm. I would be really interested in doing the stepper calculation. Can you tell me or direct me to the right information.
I have no rotary, so am not able to help much, but to link to the rotary troubleshoot manual, hoping it will contain info that can help you shoot your trouble.
@DU913OZ You’re welcome, Steven. I’ve changed the title of this topic to something that better describes your issue. gSender’s “measuring tape” is not “wrong”. I am sure that this issue is similar to your previous rotary one. The fix is to properly calibrate your machine.
EDIT: i googled Silver back 6060 and it seems you have open loop steppers. those tend to lose steps very often if you do fast movements like rapids. if you don’t care about accuracy your good to learn, if you calibrate for 100mm and only make small projects in that range your good, don’t push to hard tho.
if you calibrate for 300mm you’ll run in problems on small projects. find a mid point, or change to closed loop steppers
i assume you just had your first cnc, play with it, learn about this stuff, it’s fun, when it gets frustrating upgrade
Hi Grant,
I am sorry. What I meant was it wasn’t the same as my measurements. Please change away. I didn’t mean that GSender was wrong. That was bad statement. Sozz.
I am seriously in love with GSender. It’s very intuitive.
I will visit the workshop at the weekend and calibrate the machine.
Please forgive me. I am still getting to grips with the new terminology.
Thanks.
I could cry. I finally got the cutter moving the distance I set. Sorted the Z for the rotary. It was all going well. So I decided to use the YouTube video to cut the skull on my rotary.
Aaaaaaaaaaaaa the rotary still won’t cut it all the way round.
Help please. I am going doooooolally.
@DU913OZ You will have to refresh my memory. In our private emails, we went back and forth on which axis you were using for your rotary. Did you end up setting it parallel to your X axis and plugging one of the Y cables into the rotary. Or, did you end up setting it parallel to the Y axis and plugging the X into the rotary?
If the former, you set $101=100.5. If the latter, you set $100=100.5. Using the value of 100.5, the rotary turned one full rotation, correct?
Now, if I’m on a roll so far, how are you setting your centre of the rotational axis to 0?
I set the rotary parallel with the Y and plugged into X. The rest of the information you are spot on.
I set my Z zero by bringing the cutter down to the point of my pin in my tail stock. Then I mount my blank. Rest the cutter to the surface of the blank in my chosen start position. and the zero the X and the A.
@DU913OZ I’m confused. The picture shows the rotary parallel to the X axis not the Y, as you’ve said, unless your machine is different from any that I have encountered.
I am really good at confusing people. It’s almost like a gift or a sixth sense.
So the rotary is in the position as seen in the photo. I am sorry. I’m all confused with parallel to X or Y. ???
So after our conversation this morning I went to the workshop and had a stern word with my CNC. I changed the settings $101=100.5 and miracle of all miracles. It worked. UNFORTUNATELY. This was the skull project and it didn’t work.
I got all excited and did a little victory dance. But the celebration was premature.
