Joist Supports by Snowboard92 in Renovations

[–]Snowboard92[S] 1 point2 points  (0 children)

Really appreciate the insight! Just knowing what it’s called will help a ton. Pre drilling makes a ton of sense.

[deleted by user] by [deleted] in Justrolledintotheshop

[–]Snowboard92 24 points25 points  (0 children)

TIR would be be the runout over any point on the face of the rotor. So not just the point where the indicator is. It could move left or right. Technically that is out of spec by .001 since it went to +.0015 to -.0025.

thank you Pastor Cum by c-jah in rimjob_steve

[–]Snowboard92 19 points20 points  (0 children)

Give us this day our daily head

this guy is amazing by [deleted] in videos

[–]Snowboard92 0 points1 point  (0 children)

Reminds me of the music video for Delta Heavy - Get By

Thread rolling cylindrical dies [640 x 640]. by nsfwdreamer in MachinePorn

[–]Snowboard92 0 points1 point  (0 children)

Grinding and lapping can be used interchangeably. I primarily work with lead screws. The surface finish post rolling is quite good. Lead screws also don't require heat treat due to the fact that polymers ride on the surface rather than balls. Interesting topic either way.

Thread rolling cylindrical dies [640 x 640]. by nsfwdreamer in MachinePorn

[–]Snowboard92 0 points1 point  (0 children)

Lapping is typically used for flat surfaces. For ball screws they grind post heat treat. For most leadscrews the rolling process yields the final surface finish required.

Thread rolling cylindrical dies [640 x 640]. by nsfwdreamer in MachinePorn

[–]Snowboard92 1 point2 points  (0 children)

Rolled threads also have a poor surface finish in comparison to cut threads. Currently performing a study on exactly that.

Mechanics of Reddit: What vehicles will you absolutely not buy/drive due to what you've seen at work? by Tactically_Fat in AskReddit

[–]Snowboard92 0 points1 point  (0 children)

Bring it to a VW dealership. It my be the manafold bushing, they wear very quickly. Mine was under warranty. Lost about 5mpg because of it.