[SCzEngrgGroup]

Snug sliding fit is no good, if you ever want to get those bearings set correctly. You need to "size" the shaft, so the bearing slides easily, but not so much that there's slop. You can do this easily in a lathe with abrasive cloth - you probably only need to take it down a tenth or two.

Regards,
Ray L.

[gcofieldd]

Here is a pic of some x-axis and y-axis parts Scott from Bench Top Precision made for me. They are in the mail now.

[Mad Welder]

Yeppee another BF20 build.......post plenty of pics

[gcofieldd]

I will Mad Welder:cheers: Thanks for posting

[Dingenman]

Here is a pic of some x-axis and y-axis parts Scott from Bench Top Precision made for me. They are in the mail now.

Hi, those parts look really nice!

Which kind of Aluminium is this?

Sure it isn't Stainless Steel

[gcofieldd]

Thanks Dingenman The aluminum is 6061-T6511 some variant of 6061.

[gcofieldd]

I finally got around to doing the three bolt head mod. I used my calipers to scribe a line to mark the center of the holes. I used the edge of the large center hole to guide the calipers. I also took some 320 grit sand paper and used my Dewalt random orbital sander to make a nice even mat finish on the aluminum parts I have had made for the conversion. After that I dropped them off to get black hard anodized. I will post some pics when I get them back.

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[gcofieldd]

It has been a while since I posted any progress. It has been slow going. I have been doing a lot of reading and learning trying to design the control box, but I think I have it pretty much figured out. When I finish the wiring diagram I will post it up. I took a break from that to work out some of the smaller mechanical details of the parts I am designing for the conversion. I think I just have five small parts left to do, which are sheet metal covers for the steppers and a mount for the x-axis limit switch. I thought I would post some pics of the 3D model with the finished parts showing in the model. I am at the point where I am going to start moding the saddle and z-axis carriage for the oil ways and after that I can start assembling—probably three months from now. Anyway here are the pics of the model.

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