Search found 17 matches

by picard1963
Mon Apr 22, 2013 9:53 pm
Forum: General Car/Truck Racer Topics
Topic: Does Sequence of Polishing Operations Matter?
Replies: 51
Views: 39260

Re: Does Sequence of Polishing Operations Matter?

Godspeed to your Bride's recovery!
by picard1963
Sat Apr 20, 2013 10:46 pm
Forum: General Car/Truck Racer Topics
Topic: Does Sequence of Polishing Operations Matter?
Replies: 51
Views: 39260

Re: Does Sequence of Polishing Operations Matter?

Stan, just checking in on this topic........hope all is well!

p63
by picard1963
Thu Apr 04, 2013 11:22 pm
Forum: Commercial
Topic: New track too long?
Replies: 6
Views: 13585

Re: New track too long?

Thanks guys.....now knowing that the Freedom come in 8' sections and BestTrack comes is 7' sections answers the question I had. So I guess we "overkilled it" by ordering that extra 8' section............it was interesting to see how the places were affected in our pack race making the cars...
by picard1963
Mon Apr 01, 2013 6:35 pm
Forum: Car & Semi-Truck Construction
Topic: Less is More? Polishing Too Much
Replies: 34
Views: 22199

Re: Less is More? Polishing Too Much

Whoops! Ran into this almost concurrent post along similar lines. http://www.derbytalk.com/viewtopic.php?f=2&t=7105&start=30 Again, sorry if a forum "faux pax". Stan's topic above is a little different than this one, which is more to the "sweet-spot" of polishing for grap...
by picard1963
Fri Mar 29, 2013 9:39 pm
Forum: Car & Semi-Truck Construction
Topic: Less is More? Polishing Too Much
Replies: 34
Views: 22199

Re: Less is More? Polishing Too Much

great! Can't wait and hope to try similar on our test track.


P63
(go CARDS!)
by picard1963
Fri Mar 29, 2013 4:16 pm
Forum: Car & Semi-Truck Construction
Topic: Less is More? Polishing Too Much
Replies: 34
Views: 22199

Re: Less is More? Polishing Too Much

Stan, cool write-up. Have printed to include in "the notebook".

What pictures? Is that to see if you have your "smoothest" starting point before "roughing them up"?

p.
by picard1963
Wed Mar 27, 2013 1:08 pm
Forum: Car & Semi-Truck Construction
Topic: Less is More? Polishing Too Much
Replies: 34
Views: 22199

Re: Less is More? Polishing Too Much

wow! Sounds great :bigups:

Good thinking on the "smoother-to-rougher" direction for bore integrity. Won't that still be a question as the axle "gets rougher"?

Thanks Stan!
by picard1963
Wed Mar 27, 2013 12:34 pm
Forum: Commercial
Topic: New track too long?
Replies: 6
Views: 13585

Re: New track too long?

Chiming in here with FPL since I erroneously conveyed "50 feet" earlier. It is a Freedom Series. 48 ft. And, BTW, seems like everyone talks about a 42' length, so I am confused. :? And another correction (maybe related to my confusion): Our district race was the same track, just one less s...
by picard1963
Wed Mar 27, 2013 12:26 pm
Forum: Car & Semi-Truck Construction
Topic: Less is More? Polishing Too Much
Replies: 34
Views: 22199

Re: Less is More? Polishing Too Much

Correction: it is a 48' 'Freedom Series'.....not 50' as previously stated. Stan: were you able (or intend) to apply graphite at each of the grit steps? This is what we would like to determine. Without any science or testing to start off with, does the notion of "less polished surfaces" act...
by picard1963
Tue Mar 26, 2013 7:52 am
Forum: Car & Semi-Truck Construction
Topic: Less is More? Polishing Too Much
Replies: 34
Views: 22199

Re: Less is More? Polishing Too Much

Well, we are in a position to set the track up for an extended period of time and do some testing. It's a new MW Freedom Aluminum with a K2 timer. We bought an extra 8' section so that would be a "50 foot" track (i measured 46.5' with a soft tape, pin-to-FL).......For perspective, our top ...
by picard1963
Mon Mar 25, 2013 11:17 pm
Forum: Car & Semi-Truck Construction
Topic: Less is More? Polishing Too Much
Replies: 34
Views: 22199

Re: Less is More? Polishing Too Much

FWIW, 600 Grit (US) is about 15 micron, same as Micromesh MX 240. I think that 15 micron is a good stepping stone toward 2 microns, all using Micromesh: 30 micron: MX 180 15 micron: MX 240 8 micron: MX 400 4 micron: MX 800 2 micron: 12000 Thanks Stan! I recognize most of those grits/back# from an o...
by picard1963
Mon Mar 25, 2013 8:01 pm
Forum: Car & Semi-Truck Construction
Topic: Less is More? Polishing Too Much
Replies: 34
Views: 22199

Re: Less is More? Polishing Too Much

Sorry Randy! First time post ever........just wanted to get in the right spot.
by picard1963
Mon Mar 25, 2013 8:00 pm
Forum: Car & Semi-Truck Construction
Topic: Less is More? Polishing Too Much
Replies: 34
Views: 22199

Re: Less is More? Polishing Too Much

Can an axle be TOO polished? If it helps, that was also discussed briefly in this old topic . BUT! The run times were pretty danged good! Better than a finer polish? Have you tried a controlled experiment in " unpolishing "? FS, if you mean have we tried prepping various "polish grad...
by picard1963
Mon Mar 25, 2013 6:44 pm
Forum: Car & Semi-Truck Construction
Topic: Less is More? Polishing Too Much
Replies: 34
Views: 22199

Re: Less is More? Polishing Too Much?

sporty......didn't know how to point to previous post. But thanks for getting me down to 1 micron. I still wonder about the "grabby" nature of anything more "rough". I was looking at: http://www.fastpinewoodderbytips.com/pinewood-derby-axles/embedding-graphite-into-pinewood-derby...
by picard1963
Mon Mar 25, 2013 6:03 pm
Forum: Car & Semi-Truck Construction
Topic: Less is More? Polishing Too Much
Replies: 34
Views: 22199

Re: Less is More? Polishing Too Much

Also, being a newb to the site, if I'm in the wrong area or haven't done due diligence in searching posts, please feel free to let me know!

Thannks!