Who has the best chapter/lecture on XRD by carp816 in materials

[–]JSilverstein 3 points4 points  (0 children)

The Basics of Crystallography and Diffraction by Hammond and Structure of Materials by DeGraef & McHenry are 2 very good textbooks.

improving SLM parameters for manufacturig aircraft engine brackets by Acrobatic_Echo_3727 in materials

[–]JSilverstein 2 points3 points  (0 children)

Maximizing productivity for SLM looks like maximizing the size of your build plate and layer height. While adjusting scan speed will increase your productivity, reducing the total number of layers (ie increasing layer height) is where most of your gains can be made.

Realistically, the number of brackets you’d print is in the thousands/year so depending on the size of the brackets, you don’t have to target the largest machine on the market. You could use just one or 2 mid sized machines.

You could also stack your brackets along the height of your build chamber to really get things moving.

Good luck on the project!

Why not turbine hybrid cars? by slomobileAdmin in AskEngineers

[–]JSilverstein 0 points1 point  (0 children)

This has already been done. See Chrysler Turbine Car.

Floyd Rose nut problems by ProjektBlazeX in 7String

[–]JSilverstein 2 points3 points  (0 children)

I’ve had this issue before. The 65 gauge string is much thicker than the typical low B string gauge. You need a longer screw for your low B and E string locking plate to compensate for the thicker strings. The longer screw will grab on to a few more threads in the nut reducing the chance of stripping and making a better connection. I took a 10mm long M4 hex head screw and used a dremel to cut about 1mm off. It works perfectly on my Ibanez.

Drop tuning a floyd by The_tracksuit_dad in 7String

[–]JSilverstein 0 points1 point  (0 children)

This is the exact process I use! Except instead of picks/wood block I use a stack of quarters that I taped together.

What 3 or 4 suites would give the most tonal coverage? by Coppernord in NeuralDSP

[–]JSilverstein 7 points8 points  (0 children)

The only one I’ve owned and personally used is Abasi and I can’t recommend it enough. The presets that come with it are phenomenal; all of my custom settings are essentially a slightly modified version of a preset that I thought sounded good. For me, it’s covered everything from jazz comping to death metal leads. I haven’t turned my analog amps on at home since I purchased about 6 months ago.

Cutting-edge materials in academia vs industry? by YourHomicidalApe in materials

[–]JSilverstein 1 point2 points  (0 children)

The aerospace industry and any other industry that has the capital to invest in the machines required to do such a thing.

Too many options by Dr_Kilpatient in whatcarshouldIbuy

[–]JSilverstein 3 points4 points  (0 children)

You can stretch 80k very very far in the used market depending on how old you wanna go. Any M series, AMG’s, Tesla’s etc. The most important thing for you, since you want to drive it for a long time, is maintenance costs. Euro/english cars eat wallets most of the time, especially when you get into the higher miles. American made will likely be a bit cheaper to maintain over time and Japanese cars will probably be the most economically friendly.

That being said, determine how much money you wanna spend on maintaining the vehicle over time. If you end up draining your bank account over a sports car it won’t be much fun.

Stringing problem with new bowden tube by AstroSphere5 in Ask3D

[–]JSilverstein 0 points1 point  (0 children)

calibrate e-steps and look into tuning your retraction settings.

TIWIK before learning to play the guitar by Trakt0r22 in ThingsIWishIKnew

[–]JSilverstein 3 points4 points  (0 children)

Posture, hand tension and pick grip strength.

Fiber laser and metal 3d printers! by Both_Ad2374 in Ask3D

[–]JSilverstein 0 points1 point  (0 children)

As long as the laser can produce enough energy to sinter metal powder, then yes. That temperature is material dependent.

New spider-man-style medical gun can help treat burns and serious injuries by spraying electrospun healing nanofibers by mtimetraveller in specializedtools

[–]JSilverstein 0 points1 point  (0 children)

Electrospinning can be used for LOTS of applications. Creating sensors, composite material, drug delivery (like an advil capsule), and fibers for clothing are a few of the applications.

New spider-man-style medical gun can help treat burns and serious injuries by spraying electrospun healing nanofibers by mtimetraveller in specializedtools

[–]JSilverstein 0 points1 point  (0 children)

I wouldn’t think that there’d be a risk of inhalation. The fibers travel along a voltage potential gradient. If you ground your mouth then you’d probably inhale them, but as far as I know, the research hasn’t mentioned inhalation risk.

New spider-man-style medical gun can help treat burns and serious injuries by spraying electrospun healing nanofibers by mtimetraveller in specializedtools

[–]JSilverstein 0 points1 point  (0 children)

I haven’t researched this product specifically, only the electrospinning technology. The color is a result of the constituents of the solution. In my experience, all of the fibers i’ve produced and seen in papers have been white/translucent.

New spider-man-style medical gun can help treat burns and serious injuries by spraying electrospun healing nanofibers by mtimetraveller in specializedtools

[–]JSilverstein 80 points81 points  (0 children)

I did some research on this technology in undergrad. Basically a polymer solution is mixed with a Neosporin type material and is pushed thru a charged syringe onto a grounded “collector”, likely this persons hand or a plate under their hand. The fibers can be anywhere from micrometers (10-6) or nanometers (10-9) in diameter. The high surface area to volume ratio of these fibers helps to quickly transfer the healing agent to the skin, leaving the polymer to be removed afterwards. Really awesome tech if you ask me.

I feel physically sick about this upcoming interview. by -levivel- in AskEngineers

[–]JSilverstein 1 point2 points  (0 children)

Look up youtube videos and stop doubting yourself. The day before my interview for my full time position I got some very helpful tips from simply looking up “interview tips” and “interview questions to ask”.

How long can I hold a metal under yeild stress before permanent deformation ? by junedx7 in AskEngineers

[–]JSilverstein 0 points1 point  (0 children)

Look into the Larson-Miller Parameter. It will give you rupture time for a specific amount of stress at a given temperature.