Can you please make a video on your accuracy PLEASE. Look I put ballscrews in on the X ,Y but not the knee . Reason I'm asking is the knee is slow as cold molasses like I mentioned in my other post ... If I speed up the knee then I break/shear the key ... The other axis is more than fine ,but I want to use my quill but concerned about accuracy. Thanks 😊👍 a million.
Why my kind sir did you not do this 😭 video earlier 😭😭😭😭😭😭. I put nema 34 ,12NM hybrids on ... My 1st world problem is it keeps shearing the shaft "woodruff" keys off at 25m/min when changing direction. Thanks for the video btw 👍
That's interesting Johannes. I was considering upgrading to NEMA34s. I've recently put a large rotary table on the bed and as a result I've had to lower the maximum speed and acceleration, to stop the motors from stalling. Breaking keys is tough!
@@StoneEng Thanks for the prompt response. My quill is stationary. I move the Z with the knee ...I thought it would be more accurate but considering moving to using the quill as Z . My other Axis is fine , like I mentioned before I have a 1/2 belt drive driving 20mm ballscrew with 10mm pitch they are fine ... Actually faster than I need even if I could get my spindle to 6000 or higher rpm (rebuild spindle with new bearings ) I intend to cut steel and aluminum but mainly aluminum ....is the increased Z speed worth the lower potential accuracy of having a lose quill? I rebuilt the machine, bought it as scrap ,i fixed it up but as I understand they were intended to mill with stationary quill " in locked position" I'm new to bridgeport so any advise gladly accepted .
Hi Sir
I like what you done.
Can I have part numbers of the pulleys and belts ?
Thank you.
Can you please make a video on your accuracy PLEASE.
Look I put ballscrews in on the X ,Y but not the knee .
Reason I'm asking is the knee is slow as cold molasses like I mentioned in my other post ...
If I speed up the knee then I break/shear the key ...
The other axis is more than fine ,but I want to use my quill but concerned about accuracy.
Thanks 😊👍 a million.
Why my kind sir did you not do this 😭 video earlier 😭😭😭😭😭😭.
I put nema 34 ,12NM hybrids on ...
My 1st world problem is it keeps shearing the shaft "woodruff" keys off at 25m/min when changing direction.
Thanks for the video btw 👍
That's interesting Johannes. I was considering upgrading to NEMA34s. I've recently put a large rotary table on the bed and as a result I've had to lower the maximum speed and acceleration, to stop the motors from stalling. Breaking keys is tough!
@@StoneEng Thanks for the prompt response.
My quill is stationary.
I move the Z with the knee ...I thought it would be more accurate but considering moving to using the quill as Z .
My other Axis is fine , like I mentioned before I have a 1/2 belt drive driving 20mm ballscrew with 10mm pitch they are fine ... Actually faster than I need even if I could get my spindle to 6000 or higher rpm (rebuild spindle with new bearings )
I intend to cut steel and aluminum but mainly aluminum ....is the increased Z speed worth the lower potential accuracy of having a lose quill?
I rebuilt the machine, bought it as scrap ,i fixed it up but as I understand they were intended to mill with stationary quill
" in locked position"
I'm new to bridgeport so any advise gladly accepted .
a cant even set up a 4 jaw chuck