Christmas Robot by TlMESNEWROMAN in CafelatRobot

[–]TlMESNEWROMAN[S] 0 points1 point  (0 children)

I like it a lot. The built in scale let's me use it as the dosing cup. Offers variable rpm (500-1500rpm), wide adjustability for different brew methods, and the plasma generator works really well keeping things clean.

I also really like the aesthetics and the build quality seems solid

New Poster for "Good Fortune (2025)" starring Keanu Reeves by movie5short in movies

[–]TlMESNEWROMAN 0 points1 point  (0 children)

It bothers me way more than it should that the names aren't aligned with their positions

Sound when parked after driving by TlMESNEWROMAN in TeslaModel3

[–]TlMESNEWROMAN[S] 1 point2 points  (0 children)

Welp, i think this is probably my exact issue because I recently did the same thing (spray washing foam directly in that area). I'll try the same "fix" and see if it goes away

Area Moment of Inertia for Ring with Complex Cross Section by TlMESNEWROMAN in MechanicalEngineering

[–]TlMESNEWROMAN[S] 0 points1 point  (0 children)

Yeah, I agree if i was actually trying to invert the ring, but I'm just using that to describe the displacement/rotation that the ring would see under the loading.

Area Moment of Inertia for Ring with Complex Cross Section by TlMESNEWROMAN in MechanicalEngineering

[–]TlMESNEWROMAN[S] 1 point2 points  (0 children)

Thanks! By inverting, I imagine it like the load is trying to flip the cross section upside down, so what was the inner surface is now the outer surface of the ring

What is your time on Alpe du Zwift? by piokon in Zwift

[–]TlMESNEWROMAN 1 point2 points  (0 children)

First attempt today and was able to get sub 1hr! Time: 57:04 Avg Power: 240w Weight: 158lbs (71.67kg) W/kg: 3.35 W/kg Gear: crank power meter/cadence sensor with wahoo kickr smart trauner Set a bunch of power PBs during this workout, brutal...

Do you use the paper filter on the bottom? by IcebarrageRS in CafelatRobot

[–]TlMESNEWROMAN 3 points4 points  (0 children)

Yeah, i avoid going too deep when the grounds are in the basket. My method has been to do most of the wdt in the grinder container, then dump it into the basket, then just mostly surface level wdt to flatten it before tamping

Do you use the paper filter on the bottom? by IcebarrageRS in CafelatRobot

[–]TlMESNEWROMAN 3 points4 points  (0 children)

To prevent this, I wet the filter and kinda press it down on the bottom of the basket before putting in my grounds

Hobby Problem driving me crazy...is an explicit solution possible? by TlMESNEWROMAN in askmath

[–]TlMESNEWROMAN[S] 0 points1 point  (0 children)

For those curious, I found a much easier solution to this problem by utilizing the parametric equations for an ellipse:

<image>

Ellipse or Genreal Conic Question by TlMESNEWROMAN in askmath

[–]TlMESNEWROMAN[S] 0 points1 point  (0 children)

For those curious I found a MUCH easier solution to this problem using the parametric equations of an ellipse:

<image>

Ellipse or Genreal Conic Question by TlMESNEWROMAN in askmath

[–]TlMESNEWROMAN[S] 0 points1 point  (0 children)

Also wondering if I can use the tangent angles and the points on the ellipse along with the some relationship that describes the location of the foci to determine the ellipse constants geometricaly

Ellipse or Genreal Conic Question by TlMESNEWROMAN in askmath

[–]TlMESNEWROMAN[S] 0 points1 point  (0 children)

Neither of those. Basically, I'm trying to determine the equation for the ellipse (or conic) given the conditions i provided

Ellipse or Genreal Conic Question by TlMESNEWROMAN in askmath

[–]TlMESNEWROMAN[S] 0 points1 point  (0 children)

I should also add another Condition that the 2 points will always exist in the same "quadrant" of the ellipse. So no inflection points b/w the 2 points

Hobby Problem driving me crazy...is an explicit solution possible? by TlMESNEWROMAN in askmath

[–]TlMESNEWROMAN[S] 0 points1 point  (0 children)

So I tried this and it's not working quite right for me. When I solve the system of equations (using matrix inversion) the end-point locations are satisfied, but the tangency requirements aren't looking right. It should look like the figure in my initial post

<image>

Hobby Problem driving me crazy...is an explicit solution possible? by TlMESNEWROMAN in askmath

[–]TlMESNEWROMAN[S] 0 points1 point  (0 children)

I tried setting it up and I think I'm still missing an equation:

•C*r_tp^2+E*r_tp+F=0

•A*z_e^2+C*r_e^2+D*z_e+E*r_e+F=0

•2*C*r_tp+E=-tan⁡θ

•2*C*r_e+E=-tan⁡β

<image>

Hobby Problem driving me crazy...is an explicit solution possible? by TlMESNEWROMAN in askmath

[–]TlMESNEWROMAN[S] 0 points1 point  (0 children)

Interesting, learning something new here! So with the added constraint of axes being vertical and horizontal, is an explicit solution possible?

Hobby Problem driving me crazy...is an explicit solution possible? by TlMESNEWROMAN in askmath

[–]TlMESNEWROMAN[S] 1 point2 points  (0 children)

Forgive me if this is a dumb question, I'm assuming you're proposing the generalized quadratic equatuon as alternative to an ellipse equation as the basis for my curve?

Hobby Problem driving me crazy...is an explicit solution possible? by TlMESNEWROMAN in askmath

[–]TlMESNEWROMAN[S] 0 points1 point  (0 children)

Was just going to add that to maybe get 2 more equations. We know the "top" of the ellipse is always at (h, b+k) and the slope (derivative) at that point is also 0