Search found 23 matches

RETURN_TO_SEARCH_ADV

by engineeringmaniac
December 21st, 2012, 10:29 am
Forum: 2013 Build Events
Topic: Sounds of Music B
Replies: 195
Views: 23993

Re: Sounds of Music B

I know its getting late in the season (I got started way late this year), but I was the one who built the harp and the violin in the image gallery. So if anyone is curious about something I did, I'm active on this forum again.
by engineeringmaniac
December 21st, 2012, 9:11 am
Forum: Boomilever B/C
Topic: Boomilever B/C
Replies: 622
Views: 65843

Re: Boomilever B/C

Has anyone done any testing with a lenticular compression beam? I'm no civil engineer, but it seems to be the most efficient. The two arches with vertical bracing inbetween (I was thinking one or three centered) would brace against vertical deflection. I used a similar design with bridge and had suc...
by engineeringmaniac
March 30th, 2012, 9:56 pm
Forum: 2012 Build Events
Topic: Sounds of Music C
Replies: 181
Views: 28145

Re: Sounds of Music C

Why can't you use horse hair from a horse... The majority of the horsehair you find online are specifically manufactured/harvested for violin bow making, which counts as "professionally made for musical instruments" and therefore illegal. Plus I unfortunately don't live on a farm with horses, despi...
by engineeringmaniac
March 26th, 2012, 9:29 am
Forum: 2012 Build Events
Topic: Sounds of Music C
Replies: 181
Views: 28145

Re: Sounds of Music C

I stuck with very traditional designs (tailored to the specified ranges) to avoid having such problems, although i got lazy and only made a two octave diatonic harp. The problem is that my music is in two different keys (C maj. and D maj.). I only have to tune five stings up a half step, but i have ...
by engineeringmaniac
March 23rd, 2012, 7:32 am
Forum: 2012 Build Events
Topic: Sounds of Music C
Replies: 181
Views: 28145

Re: Sounds of Music C

Sadly, not that i know of (my reasoning behind not putting one in). I spoke with the local music store that do quite a bit of repairs, and they said even they dont do soundposts. The tricky part is that the post has to be precisely installed. If its not the exact size, it wont fit in correctly. Also...
by engineeringmaniac
March 21st, 2012, 12:55 pm
Forum: 2012 Build Events
Topic: Sounds of Music C
Replies: 181
Views: 28145

Re: Sounds of Music C

I would definately not feel comfortable putting a 20lb weight on top of my violin. Ill put it on but leave it untightened for pure asthetics, although im not looking forward to playing in third position (i never particularly liked it) itll have to do. I dont want my violin to go the way of every bri...
by engineeringmaniac
March 20th, 2012, 10:57 am
Forum: 2012 Build Events
Topic: Sounds of Music C
Replies: 181
Views: 28145

Re: Sounds of Music C

I built a violin i am extremely proud of, but i havent put in a sound post as i cant get it without professional help which would be bothersome to say the least. I left the front plate a little thick (about 6 mm) and installed a solid 4-6 mm bass bar securly. Will i need a sound post? im not worried...
by engineeringmaniac
September 28th, 2011, 12:26 pm
Forum: 2012 Build Events
Topic: Gravity Vehicle C
Replies: 805
Views: 80146

Re: Gravity Vehicle C

Even if the skidding is consistent, what is there to prevent backlash with the string system? Thats why ive always strayed away from it...

What about useing a little bit wider wheels to eliminate skid?
by engineeringmaniac
September 27th, 2011, 9:59 pm
Forum: 2012 Build Events
Topic: Gravity Vehicle C
Replies: 805
Views: 80146

Re: Gravity Vehicle C

The wheel size depends on your ramP and brake system. That being said, what are your guys' thoughts on braking systems? Obviously the wingnut will still be popular...
by engineeringmaniac
September 26th, 2011, 12:30 pm
Forum: 2012 Build Events
Topic: Gravity Vehicle C
Replies: 805
Views: 80146

Re: Gravity Vehicle C

I am probably just going to used cd's wrapped with rubberbands (superglued on). Theyre light and perfectly round. They just have to be mounted straight and securely onto the axels (easier said then done i know).

RETURN_TO_SEARCH_ADV