Re: [midatlanticretro] 2/26 Workshop Postponed
- And, I found this site, which purports to show the physics of a
Pinewood Car, and where to locate the center of mass:
73 de Ray
On Jan 14, 2011, at 9:16 PM, Jim Scheef wrote:
> Some pinewood derby hints used in my son's winning car:
> use steelwool to burnish the axles before mounting the wheels
> make sure the wheels are absolutely straight (bend the axles as
> powdered graphite helps (oil is often prohibited)
> drill out the body and melt in enough solder to get car weight up
> to the absolute limit
> We (this was Indian Guides) won by an order of magnitude!
> On 1/14/2011 8:44 AM, B Degnan wrote:
>> Sorry to have to report this, but I have to postpone the 2/26
>> Workshop. I just learned this morning that my son's pinewood derby
>> for cub scouts is that day, and it probably would be bad parenting to
>> miss that one...
>> I am sure you all understand.
>> I think what I will do instead is leave the doors open
>> (metaphorically) to anyone who in Jan - March wants to get together
>> to work on projects, I will be available most other weekends, and
>> even weekdays with advanced notice.
>> Just so you know, my next big project is to clean and assemble a PDP
>> 11/34 rack and that's what I will be doing when I am not working on
>> VCF-specific stuff. The 11/34 is similar to the 11/40 that came
>> before it. My 11/40 has a bad H744 +5V power regulator that is
>> keeping the front panel from getting its juice, so I will also
>> replace that as part of this project. This way I will have a working
>> system to compare and contrast, test cards, etc.
>> In addition to the 11/34, there is a lot of "new" stuff that has been
>> moved to Wilm. in the past 6 months that may be of interest,
>> especially Tandy, Apple ///, Amiga, printers, OS/2, and C
>> stuff. Lots of docs and books.