PRT ShopBot upgrades

[Chuck Keysor]

Hello Brady and Gary. I have loosely attached my new V-roller bearings as shown in the attached picture. I used grade 5 bolts for the new V-roller bearings. The bolts in the original V-roller bearings are grade 8. (They didn't have grade 8 where I shopped, and I assumed grade 5 would be OK...…) Was that a correct guess????

I had small cold formed burs on my Z rails as shown. I did cover up my rack with duct tape to keep from getting filings stuck in my grease before I commenced filing....

Thanks, Chuck

[Brady Watson]

Grade 5 is fine. Start adjusting using the original 4. Put the new 4 on loosest position, then carefully cam them in against the rail. Keep in mind cam clock positions should be about the same for all rollers in the same line. Also keep in mind that you can affect pinion lash adjusting the rollers on either side. Just take your time and be deliberate.

[Chuck Keysor]

Thanks Brady! My welder friend just got done welding my 2.5" x 1.5" steel tubing onto my X-car. He hurt his knee not long ago, so in order to weld the bottom joints, we had to take the car off and flip it on its side. So everything is really torn apart now. I'll post that on my earlier thread when I have pictures back from the developer (). Sorry Gary for butting into your thread,,,,, Chuck

[pro70z28]

Not a problem Chuck. Thanks for the Photos and explanation. That will be one of the projects I'll be dealing with, later on. Good information to have.
I ended up having to work the regular job most of today, so all I accomplished was assembling the platform for the vac & dust collector. I've gone about as far as I can building parts. I have a pending CNC job, but they're taking their time, so it may be time to tear into the ShopBot. Just watch, as soon as the CNC is down, they'll say they've made a decision.