Looking back through my old notes it was actually 5ms delay. The following picture is a scope of the velocity command (white line) from the control and the reaction of the drives encoder feedback...
Type: Posts; User: DJEkim33
Looking back through my old notes it was actually 5ms delay. The following picture is a scope of the velocity command (white line) from the control and the reaction of the drives encoder feedback...
I'm aware some had success some had had with Galil cards. My understanding is that filters are applied to overcome the slow response of the DMM drives encoder section. It can be done in Linuxcnc but...
I can only use my drives in step and direction. I get over current errors when trying to use them with analog control. The drive doesn't report encoder counts fast enough to the control computer....
I used this for my two 1.3kw and one 1,8kw motors and just use two of the three connections:...
I don't disagree and made that point in my last post. As did RecceDG who was asking the question. But he was asking a specific question about a specific setup he had. He wasn't asking how to go down...
For some reason I'm not getting notices when the thread is replied to. This may be late but here are some answers to your questions.
Yes the 6209 and 6007 bearings are pre greased. I would avoid...
May have cursed myself but today the bearings finally gave up. Felt a scorching hot tool when I went to change it and let the spindle cool down to see how bad the damage was. Once it cooled it almost...
I have the lichaun 1.8kw servo motor and a 2:1 pulley. It's a great setup but it gets pricey to convert.
Back to the original question about control of the stock motor. Where are you measuring for...
Yeah that may not count as a g0704 anymore.
Yeah it does pretty well. Especially in aluminum. I have stalled larger drills in steel but not end mills. What motor is 3.7kw and 6k? My vmc is only 5.5kw, I don't think the g0704 can use that much...
I did purchase balls from ball tec. With double nut screws you are going to use .125 balls and shim to remove backlash. I was able to purchase:
500 x
CHROME STEEL BALL 0.125", 3.175 mm, 1/8"...
I have a lot of emails from them back and forth explaining things but none of it helped. Initial blame was placed on my wiring, which was exactly how the manual stated. It then went to a bunch of...
I feel your pain. I have 2 DMM 1.3kw on my X and Y axis and my Z axis has a 1.8kw. They replaced motors half their size and cannot achieve full speed under analog speed control. The only way I have...
I have also had this issue to a degree. I can use the motors up to 2000 rpm just fine but if I try to push them harder under analog voltage they over current fault. I can get them to move at speed...
Yeah it's a G0704. The grinding was done 4 years ago and I thought I took precautions to keep the heat down. Also this machine is run a lot so maybe it was just time.
I believe they do sell the...
A bit tongue in check but I think something isn't right.
https://www.cnczone.com/forums/attachment.php?attachmentid=460398&stc=1
Anyone have a 1605 ballnut with flange for sale? New double...
Just an update on this project for anyone who cares. I have been running the machine since the post 4ish years ago at least twice a week for runs that are between 6-9 hours. I have had no issues and...
This is my current HDD:
http://www.cnczone.com/forums/attachment.php?attachmentid=388538&stc=1
The continuing saga:
I did find a chip on the PWMINT card attached to the BMDC that was not settled. However reseating it did not affect the BMDC timeout issue. So here is what I have tried so...
I had to disable my external cache memory to get the PC to boot successfully. As I understand it that would probably need to be enabled for proper function of the machine? On the same note why...
Thanks for the tips. Turned off Pnp and also changed "PCI IDE IRQ Map to: ISA" from PCI-auto. Also turned off the serial and parallel ports just to make sure. Nothing.
A couple other items of...
I just acquired this BP Torq cut 22 with a DX32 control. I purchased it in unknown condition and was told that the issue that took it out of service was air solenoid related. This seemed to be...
I love how they are not even comparing the same materials, end mills or even parts for that matter. Not the first time I have seen that video. I never knew most shops were actually trying to take...
Did you ever get a chance to check the runout on the BT30 tool hoolders you got from tool tree? I am looking at ordering a set of BT40.
My comment is more towards the lower end more readily available motors that most people use. I went down the whole rabbit hole of a treadmill motor following hoss on the G0704 and regret it. One...
I was able to get over 350 ipm at an acceleration of 30 in/s sq out of my setup and have since turned everything down to max at 90 ipm at 20 in/s sq. There is no need other than bragging rights on a...
My experience is they do not hold up well under load and at high speeds. I would not expect to get any where near the same performance from a treadmill motor as you would from a 3 phase induction...
What is E03 currently set at. It would also be worth knowing how much the motor bogged in cuts. Did it loose 900 rpm and E03 was set at 900? Would also be helpful to know what E10 and E11 are.
In your manual it states those drives can be controlled by analog voltage by changing parameter PA000 from H001 to H000. This is listed on page 50 of your manual. Maybe this was already tried. It...
These bearings are a direct replacement of the factory bearings and require no shims. Just make sure to pull and replace the old bearing races with the ones provided.