[CFLBob]

Got it from the previous response, which appeared after my response.

Thanks!

[Iridium10]

I just got my C7 ballscrews from Chai, the shafts were turned down to Hoss specifications, however the 7000B Bearings from VXB do not slide on. Seems like the Angular contact bearings inner race is 9.98mm and the C7 ball screws are at 10mm. Is this supposed to be a press fit?

[hoss2006]

I just got my C7 ballscrews from Chai, the shafts were turned down to Hoss specifications, however the 7000B Bearings from VXB do not slide on. Seems like the Angular contact bearings inner race is 9.98mm and the C7 ball screws are at 10mm. Is this supposed to be a press fit?

needs to be a slip fit, sand the ballscrew shaft ever so lightly to get the bearings to slip on.
Hoss

[Iridium10]

Thanks for the reply Hoss! Your build plans have been a big help.


Some more questions... Should the bearing for the Y axis extension block be a slip fit too? My stock G0704 x-axis endplates are like .030 bigger than the bearing, I guess I need to shim them until I machine the new phase 3 endplate? Should the X-axis end-cap bearing be a slip-fit too? Also the bolts (M6x 60mm) you specified in the phase 2 hardware list for the "G0704 Y axis spacer for Y axis extension front mount" are too short. Is there somewhere in the download that has the sizes?

Thanks again Hoss!

[hoss2006]

Thanks for the reply Hoss! Your build plans have been a big help.


Some more questions... Should the bearing for the Y axis extension block be a slip fit too? My stock G0704 x-axis endplates are like .030 bigger than the bearing, I guess I need to shim them until I machine the new phase 3 endplate? Should the X-axis end-cap bearing be a slip-fit too? Also the bolts (M6x 60mm) you specified in the phase 2 hardware list for the "G0704 Y axis spacer for Y axis extension front mount" are too short. Is there somewhere in the download that has the sizes?

Thanks again Hoss!

All the bearings should be a slip fit on the shafts.
A shim will help with the stock X endcap, the phase 3 is a closer tolerance.
The m6x60 bolts are in the list for the standard conversion, the spacer for the extension is an inch thicker than standard so the bolts would need to be an inch or 25mm longer.
Hoss