New build - Steel - 3 Axis initially then conversion to 4 axis.

[Slixxor]

Crossed purposes wasn't talking about you with that statement.



Because I'm not blind and can see there's been no machine work done on any of those surfaces or any thought regards rails being on same plane etc.
I've never yet seen piece of angle iron that is perfectly flat or 90deg and you are bolting straight to the face of one.

Then we have the heat put into the metal which can clearly be seen. You can Stitch it with pigeon Shit and beat the shite out of it all you like but it will still be warped or twisted in some way unless you take other steps to correct it.

All these little things will bite and like I've said your lucky your using round rail. Profiled linear rail would just not tolerate this level of in accuracy and bind up solid.

Edit: Just to be anal and prove my point look at this picture and tell me whats wrong.?

You are referring to me shaping it? I don't see the problem? what are you suggesting? (genuinely asking)

[spluppit]

Having a good read of this thread I'm rather speechless and even more speechless with the commentary that goes with your posts Slixxor, you can educate yourself so well on the internet of the basics it' just takes a bit of time to learn and absorb. I'm not going to pick up on individual things because would be here until the 1st of January. This is not a good advert for someone to have a go at home. You are one brave man to post this publicly.

[Slixxor]

Having a good read of this thread I'm rather speechless and even more speechless with the commentary that goes with your posts Slixxor, you can educate yourself so well on the internet of the basics it' just takes a bit of time to learn and absorb. I'm not going to pick up on individual things because would be here until the 1st of January. This is not a good advert for someone to have a go at home. You are one brave man to post this publicly.

Im confused what bewilders you? Can you elaborate? I dont see how my build is different to any other. And my comments are far from offensive. Do you just not like the design. Im confused

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[routercnc]

In post #32 the Z bearings are trapped between the fixed distance between the angle iron sections. This means they cannot sit naturally, or have any pre-load control, and you can't adjust it either.

I'm guessing you welded it together with the angle iron bolted to the bearings? If you release the bolts into the Z bearings do they slide out easily from under the Z axis (which is what you want), or does the Z axis 'spring away' or 'close up'? Ideally this should be a nice gentle fit onto the bearings , or possibly have a slight bit of pre-load.

[Slixxor]

In post #32 the Z bearings are trapped between the fixed distance between the angle iron sections. This means they cannot sit naturally, or have any pre-load control, and you can't adjust it either.

I'm guessing you welded it together with the angle iron bolted to the bearings? If you release the bolts into the Z bearings do they slide out easily from under the Z axis (which is what you want), or does the Z axis 'spring away' or 'close up'? Ideally this should be a nice gentle fit onto the bearings , or possibly have a slight bit of pre-load.

When welded they werent bolted on. Just the outer frame clamped onto both sides with pressure applied. When loosened there is slight rubbing on the bearing blocks but minimal force is required to remove them. If on an angle they scrape and fall straight out. The bearing holes were drilled afterwards with bearing blocks on the rails with no tension. The rear of the bearings were coated with steel blue and the top casing was slid over the bearing blocks creating the guide for my bearing block drilling die I'd made.


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