10,664 reputation
174793
bio website twitter.com/doresoom
location Huntsville, AL
age 28
visits member for 4 years, 6 months
seen 8 hours ago

Mechanical Engineer from Huntsville, AL.

New homeowner since 3/5/10

Major projects include:

  • Scraping popcorn ceiling and refinishing smooth

  • Replacing 8 sheets of drywall on ceiling after tornado damage

  • Laminate flooring installation


18h
comment How to make something thick out of carbon fiber?
Yes, they can be, but they're hollow, not solid carbon fiber. Foam tubing can be used as a form for the layup, but it's not really serving any structural purpose. Just like you can use a balloon for a form on a paper mache project.
20h
comment truss mathematics for a 30x50 building with cathedral ceilings
Statics, followed up by Mechanics of Materials, would be my recommendation. The linked textbooks are the ones I've had experience with. I found them to be very understandable, but then again, I was a TA for the course for 3 years.
1d
comment How to make something thick out of carbon fiber?
The reason carbon fiber is such a lightweight yet strong structural material is that it has an extremely high tensile strength. Separating two thin layers with a honeycomb structure in a sheet or a foam core in a tube results in a lightweight member that is resistant to bending stress. The separation is where the strength gain occurs, since the center of the structure sees little to no bending stress. A thin flat sheet of carbon fiber would be too weak. A thick sheet of carbon fiber would be a waste of material. Steel "I" beams are designed in a similar manner for this reason.
1d
comment How to make something thick out of carbon fiber?
I'm voting to close this question as off-topic because it concerns composite fabrication techniques rather than home improvement.
1d
comment Ramp for a tool shed
This reference may be of more immediate use.
1d
comment Ramp for a tool shed
It's probably not much help by itself for a non-engineer, but I'll try to turn this paper (PDF) into a useable answer when I have time.
1d
comment where can I send a backyard soil sample for lead testing?
You can probably buy a mail-away kit with all the containers and instructions you need. University Agriculture departments also often offer these services for a small fee.
2d
comment Difference between 36 and 42db of noise isolation?
@user978548 I believe you meant to tag DMoore.
2d
comment Difference between 36 and 42db of noise isolation?
Find hearing protection with the same ratings? It's going to be difficult to reproduce. You may need to stack earplugs and earmuffs, since most earmuffs top out around high 20's to low 30's dB reduction.
2d
comment Starting row of laminate flooring
Don't forget to account for the expansion gap on each side. Subtract double this value between the third and fourth steps.
2d
comment How to close gaps between laminate floorboards
While Q&A style self-answering is definitely encouraged, please take the time to include a quality answer rather than just a link to YouTube. As is, I'm hesitant to upvote your correct but low quality answer.
2d
comment How to close gaps between laminate floorboards
@DMoore Repeat 20+ times? Yikes.
2d
comment Which type of weather stripping is best for keeping smoke out of my house?
Can you ask your neighbor to refrain from smoking immediately next to your house? Or do they somehow produce such a prodigious amount of smoke that they saturate the neighborhood?
2d
comment How do I fix seams that open up at the corners of walls during the winter?
A couple of points on your crown molding comments: It doesn't require a $300 saw, and it doesn't take months of practice. Caulk can go a long way towards hiding slight imperfections with painted crown molding as well. Here at DIY.SE, our goal is to enable homeowners to DIY whenever possible. Installing crown molding is definitely a DIY-friendly task and does not require hiring out.
Jan
26
comment Home light switch circuit with 5 switches
@wallyk I learned something new today!
Jan
26
comment Home light switch circuit with 5 switches
Do you mean 12 or 24 V DC?
Jan
26
comment How to trash the trash can?
The last time I "threw out" a trash can, I just scrawled all over it in sharpie, "Trash", "Please take can too", etc., and they took it the first try. Of course, it helped that it was beaten to death with the wheels falling off, and had a nice shiny new trash can sitting next to it.
Jan
26
comment maytag washer leaking during the drain cycle
Your statement of "leaking from the wall" doesn't sound like it's the washer. Do you mean that there's moisture internal to the wall that's seeping through?
Jan
26
comment Why is sanding required between layers of lacquer paint?
It really depends on the type of coating and the manufacturer's instructions. I've used some that say, "Apply second coat within X hours of first without sanding. If time between coats is greater than X hours, lightly sand first coat."
Jan
26
comment Open up a loadbearing wall
"The person told me they were an engineer." Hmm, I'm a mechanical engineer, and there's no way I'd give someone free advice over the internet about something that could cause their house to have major structural issues. I understand they were just trying to help, but you should really hire a credentialed professional to perform the analysis.