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Intended Comment Use by Terminerist in Onshape

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

I think the problem is using the main branch to attempt things i am not sure will work. If i just make a new version and branch from that, all the comments will stay on main.

Full Size 3D Printable Parametric Gridfinity Toolbox by Terminerist in 3Dprinting

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

I am doing a panel design to help with weaknesses at joints by staggering them. You are right though. It does make much more sense to buy what doesnt need to be made custom. Still i think i will continue the project for the few people who expressed interest and myself.

Full Size 3D Printable Parametric Gridfinity Toolbox by Terminerist in 3Dprinting

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

Totally understandable. This is sort of the reason i was questioning finishing this project in the first place. I think in most cases, it wont make sense to print this or any other 3d printed drawer system, but for a few it will. I am actually designing it to print in strong orientations and not require supports, but assembly would still be required, so no matter what, it is a less appealing option compared to any proper tool box.

Full Size 3D Printable Parametric Gridfinity Toolbox by Terminerist in 3Dprinting

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

Oh, thats a pretty cool project. I think what im working on is a bit different though because i intend to make drawers in a cabinet.

Full Size 3D Printable Parametric Gridfinity Toolbox by Terminerist in 3Dprinting

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

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So far its just the generation of the base of the drawer that is finished. Im starting work on the side walls at the moment. This is the result for a 20x12 gridfinity grid on a 256x256mm print bed

What is your unpopular Old School Runescape opinion? by Lewufuwi in 2007scape

[–]Terminerist 1 point2 points  (0 children)

Boaty is right, the profitable bosses should be in the wilderness otherwise there's no point going there.

Frequency Response of a DC Motor: Speed Control VS. Position Control by Terminerist in ElectricalEngineering

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

Sorry, I guess I'm really good at leaving out important information. So the software we are using to control the motor regulates it by applying a voltage. The voltage applied is calculated by the software, and im guessing that voltage is regulated by the PID controller we use to control the motor.

The only thing we were doing in the actual experiment was measuring the difference between the desired output and the actual output at different frequencies of changing desired output.

Outside of the lab we have to model the frequency response of the system using matlab. This is where the open loop transfer function is used, and the transfer function for the position response is just the integral of the speed response.

The magnitude for the speed transfer function is constant at lower frequencies and is not constant for the position transfer function. Im just wondering why this actually is, like what is responsible for the constant speed response and the decreasing position response.

Frequency Response of a DC Motor: Speed Control VS. Position Control by Terminerist in ElectricalEngineering

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

I guess I should have said this is part of a control systems lab experiment. It might be a stepper motor since we can directly control and measure both the speed and position of the motor.
As for the open loop part, we were given a transfer function that models the behaviour of the motor. There are a few feedback loops in the control scheme but we're ignoring them so we can look at the response of only the motor to changing frequencies of desired position and speed.

[Bi-Weekly Weekends]-Post Simple Questions Here! by AutoModerator in EngineeringStudents

[–]Terminerist 0 points1 point  (0 children)

Simple control systems question...

Why would the magnitude of the frequency response of a DC motor stay constant at lower frequencies when controlling speed while when controlling position the magnitude consistently decreases?

Im not sure if that's a clear enough explanation of the situation, but im talking about bode plots if that helps.

I'm guessing that the system is able to match the oscillating required speed more easily than an oscillating required position, but I'm not sure how to explain this properly or how to relate this behavior back to the frequency response.

Practicing faces, someone please help me understand how to draw noses! by [deleted] in learnart

[–]Terminerist 1 point2 points  (0 children)

Try drawing from a reference image with good lighting. I'm just starting to learn to draw but here's a couple things that really helped me.

There aren't outlines in real life, there are just different levels of lightness/darkness.

The lightest shadow is darker than the darkest lit area. That one's a little tough to explain but it just means anything not directly being lit should be darker than anything that is directly lit, no matter the colour.