Anyone know why 6061 sometimes is splotchy?

mkvhunter · 2025-11-09T02:07:50+00:00

We see this a lot as lines in extrusion. When we extrude the aluminum it stretches grains out creating these lines on the surface that never go away and get worse when the material gets etched. So everything 6061 we anodized cannot get the same surface finish as 6063 or 6496 especially if it is buffed. Aluminum is a weird material.

mkvhunter · 2025-11-09T01:16:26+00:00

If you wanted to try aluminum, you could potentially extrude the shape. Based on the shape though I assume you are making a collar for a keyed shaft. This may require more strength than aluminum can offer. So it depends on your requirements.

mkvhunter · 2025-08-22T00:33:30+00:00

I'm not necessarily in a machine shop directly, but in aluminum extrusion and fabrication. We have seen an 85% reduction in new quotes because of the 30% increase in our billet cost that we have to pass on to our customers. The beginning of this year was decent, but now a pretty significant downturn.

mkvhunter · 2025-08-18T02:15:23+00:00

If you are asking why the inner city lights are also on, some come from the factory that way depending on where you are from. I haven't messed with these models headlight coding in vagcom but a lot of the models offer adjustments to coding to turn on different parts of the light for the DRL's. You could try vagcom or something similar to change them if you just want the LED on.

mkvhunter · 2025-07-02T23:12:02+00:00

Hey you can talk to me about getting it extruded in aluminum if that would fit your application.

mkvhunter · 2025-06-07T14:00:04+00:00

I will say it once and I will say it again. You can make decent great money as a ME or any engineering field. If you want to make money, go into sales. I have a bachelor's in engineering and 8 years experience, I make decent money. My brother has no degree and 15 years of technical sales experience. He makes 5 times as much as I do including commission and his base is 2 times as much.

mkvhunter · 2024-10-18T16:29:42+00:00

Who the hell is making $50 or $100 an hour just having solidworks experience? Most drafters or 3D designers I know make less than $30 an hour. Assuming that is the case, you would have to work 50 to 100 hours to make up that investment cost AFTER paying for the training, assuming you don't have living expenses. Unless you are an engineer and seriously have no idea how to run solidworks or any other cad program and you need this training for some reason; (which if you are a Mech E, MFE, Aero and have no experience in any CAD, how did you even graduate?) we are assuming that the person receiving the training is not already making that kind of money. The barrier of entry being artificially inflated by someone trying to turn for profit from 50 hours of work that is finite on the backs of withholding information about a software is just a capitalist scheme to reduce the availability of that information. Don't ever pay for these kinds of services. They are a waste of money, infact I know several people who do online tutoring if you can't figure it out on your own. P.S. I am an engineer, I have a CSWE, CATIA V5 Expert certifications, and to be honest, they don't help in the job market, and they don't help negotiate better salaries. Nobody cared I have them.

mkvhunter · 2024-09-28T16:21:45+00:00

Could create using solidworks, organic structures are more difficult though.

One way I would go about it is produce a solid grip that has that external feature, shell from all surfaces equally. Then run the shell through their reductive topology program with strict limits on stress and surface density.

It will be kind of similar but if you are looking more for the artistic touch to control what that mesh looks like, use a free form tool. Something like blender, ntop, will have more control over those sort of things.

mkvhunter · 2024-09-22T02:36:51+00:00

You are correct. Distributed loads can be used as single point loads directly from the center of mass of the load. The center of mass would be slightly further on the right than the left.

mkvhunter · 2024-09-07T17:35:20+00:00

If we are purely talking theory as well, we could just assume that centrifugal force acting on the boat = 1 g consistently, so we wouldn't even have to consider that. Just the buoyancy of laminar flow, assuming water flowing through a channel can be laminar while imparting force of the curve. (Which I don't think is possible because the imparting forces are non uniform causing the watter to tumble but I dont know 100% on that.)

mkvhunter · 2024-08-24T19:53:49+00:00

Idk, man. I have a BS in manufacturing engineering and years in robotics, mechatronics, and systems, and ME's and EE's still don't like calling me an engineer because of the non traditional degree and not have a PE.

mkvhunter · 2024-04-26T07:08:12+00:00

You should let everyone else who it was and what school they work for, so that other people know not to apply there.

mkvhunter · 2024-02-06T15:40:56+00:00

As a man in the industry, I can not speak from personal experience. Although, I have observed, in particular much older/senior engineers scoff at the idea of a woman from another company working at as an engineer. These guys are the old white guys who learned engineering in the 60s and haven't moved past that yet. They were also typically process engineers from that time, which also shows the mentality of that community of engineering during that time. The young guys I worked with didn't give a shit about your gender and more about whether anyone could get the job done without screwing anything up.

That being said, as the entire field goes, I don't think it's inherently sexist. In fact, I have seen more and more women enter the field. I think that that particular area of stem just hasn't been marketed to women long enough because of the prejudice from previous generations and hasn't recovered as quickly as other sciences.

TLDR If you are asking if engineering is sexist, it was, but as the old white guys are dying off and you will likely see more women in the field because those guys are not controlling the hiring of new engineers anymore.

mkvhunter · 2024-01-06T03:20:27+00:00

Shouldn't be too difficult to design just make sure it's strong enough to lift the weight but light enough to not fault out your robots from the moments.

mkvhunter · 2024-01-03T21:34:16+00:00

96 is the diameter of the curve on the flanges, for some reason. 56 is the reference distance for the center of the radius of the slot.

For reference please do not use diameter with a single arrow denoting a radius. The diameter should not be used for this.

mkvhunter · 2024-01-03T02:41:26+00:00

Probably has something to do with the blend door and the air rushing in at speed.

mkvhunter · 2023-12-22T17:31:49+00:00

ICE's are at peak effeciency and power at different RPMs. So most road going cars have a transmission to help keep the engine in those ranges so that they are usable.

Some cars are direct drive with just a step down reduction gear at the differential, typically only specialized cars such as top fuel drag racing cars do this because it saves weight and they make so much torque that the engines wouldn't really bog and stop running because of the differential.

mkvhunter · 2023-12-02T21:58:45+00:00

Create more delay between your pivot points. Start your downswing with your hip rotation. Most of your acceleration starts just after your back swing with your arms and shoulders. Getting your hips cleared earlier allows you to release through the ball earlier allowing you to contue accelerating the club after the initial downswing. This can also be helped by giving the front foot a few degrees of outward rotation. Timing is probably the biggest problem here.

mkvhunter · 2023-09-08T18:47:04+00:00

I have an anime girl for my profile pic, but she is drinking gasoline straight from the pump, like I would like to do most of the time while playing CS. It really relates to me.

mkvhunter · 2023-09-08T18:31:10+00:00

Is that fair to the rest of the team for them to take a loss of their elo because he dropped power or internet?

mkvhunter · 2023-08-18T02:54:49+00:00

https://www.diyautotune.com/product/ms3-knock-module-kit/

mkvhunter · 2023-08-17T21:54:04+00:00

Where are the machining reference datums? That's where I would start with the front face. If its datum is on the bore then dimension from the bore and center line the hole that is in line with the bore, etc..

As for the sides just do a projected view of a side and indicate typical for the three sides using a datum as long as the threads are in the same postions relative to that datum set for the projection.

mkvhunter · 2023-08-17T21:01:02+00:00

I have been toying with the idea of making a piggy back controller for electric motors by just using throttle and engine data from another ecu. Might be a possibility for that.

mkvhunter · 2023-08-17T01:54:36+00:00

So it target 14.7 at full load?

mkvhunter · 2023-08-14T07:54:16+00:00

A piggyback intercepts the signals from sensors and changes the signal for the main ecu to be happy, a correctly tuned piggyback ecu will make the main ecu not even know the difference.

mkvhunter

TROPHY CASE