OpenBuilds Style Build

[WoodKnot]

Woodknot, I don't think you realize just what a mess this miss-match of parts puts the machine design in or the complications they cause.?

Because the size of the rails and ball-screws were never designed to fit on this frame and profile style then things have to be moved into positions that are not ideal or good.
For instance, the only way to fit the ball-screws is to now place them outwards of the gantry sides, this then leaves nothing to fasten the BK bearings onto, so we have to extend the endplates so brackets can be made which extend off at 90 degrees for the BK bearings to fasten onto.

This while not being an ideal location having the screws hanging so far off to the side can easily be done in terms of making extended plates, however, the complications are how do we allow for alignment of the screw in both horizontal and vertical alignments and the fastening of the ball-nut mount on the gantry side.? Slots in the end plates and BK plate are the answer to allow adjustment.

However, there's another issue that now the SFU mount is on the outside of the gantry which puts the SFU mounting bolts on the inside of the gantry which cannot be accessed when fastened to the linear bearings. We can't fasten the SFU bearing onto the gantry side before fitting it onto bearings because we need to align it to the ball screw.!

These are just the issues with the Y-axis and I haven't even looked at the X or Z axis but again this mismatch of parts will place similar design complications.

So maybe you can see I'm not talking about trying to design you a completely new machine that is super strong, the struggle is just making things fit together in a fashion that makes assembly possible and doesn't waste my time or yours making plates that don't work or fit.!

I know you think it's simpler than it looks but honestly it's not, however, as you have found it's very easy to F-UP which I don't intend to do.! So please say now if you want me to continue or not because I haven't got time to waste making plates which don't work.!

See pics to get some idea of the issues.

Good evening Jazz

OK, so my ballscrews will not fit inside anyway, unless I use a different style of nut?

The ballscrews are too short for the profiles, so overall a complete mess.

Is there an alternative nut and if I got screws that are longer than the profiles, could the bearings be seated in the plates?

Your thoughts please?

Thanks

WoodKnot