Engineering on a mac? Answered

Can anyone recommend some CAD or CAE software for mac, I love mac dearly but i need some engineering software. 

Question by Douglerful 8 years ago  |  last reply 8 years ago

Biomedical engineering

Hi, My names Tom and I need a team of experienced engineers, biomedical engineers and programmers to try and design different biomedical devices. This will be a NON profitable team, so it would be more of a hobby than a job. But I will take anyone that thinks they will be helpful. Get back to me soon if your interested please, this would also be a great idea for students at universities or collages that want more experience. Thanks Tom

Topic by tommy7243 5 years ago  |  last reply 5 years ago

Engineer's Duel

Hi everyone, I'm new here to this forum site but I wanted to share an idea I've been kicking around for a while now.  I'm a huge fan of the Fantasy vs Science Fiction debate and often like to combine certain elements from each into one another (ie Spell Casting Robots, Steampunk Wizards, etc). One of the staple elements of any Fantasy work is the iconic Wizard's Duel, when two magical wielders face off against one another using a combination or various spells, attacks and magic.   Now, I've always been interested in the kinds of sports/ competitions that focus scientific and engineering minds (robot battles). So I devised one of my own today, just something I think would be really interesting to watch. It's sort of like a modern day resurrection of medieval duels, but instead of weapons the duelers use inventions. Engineer's Duel Overview: Two inventors face off, each utilizing different inventions they've built to best their opponent, and eventually destroy them (or at least incapacitate). The purpose of the battle is to test the wits, intelligence, strategy and inventing skills of each of the duelers.   The goal is not to destroy the opponent, but instead their chosen gadgets until yours is the last one surviving. Rules: 1) No Robots. This fight should be between the duelers themselves, not their robotic minions. 2) No Direct Weapons Allowed (devices that serve no other purpose except as a weapon). Eg no guns, swords, canons, etc. The purpose of the duel is not about how powerful an invention one can build, but how inventive it is and how well the dueler uses it. 3) Each invention chosen by the duelers must be used at least once in the fight. 4) No EMPs, for obvious reasons 5) Vehicular machines such as Tumblers, Mech Warriors, and Giant Hovercrafts are allowed but only in the National Primaries. Other than this, if you can build it, you can use it. So yeah tell me what you think!  

Topic by SHIFT! 8 years ago  |  last reply 7 years ago

jet engines

Hey! i want to built a gas jet engine without the turbocharger! can u help me with combustion chamber and inside shaft ! and one more question! how to convert the power of a jet engine in speed!?

Topic by hreashi 8 years ago  |  last reply 8 years ago

Propulsion Engineer

I want to design new propulsion systems that don't need to use combustion, what should I major in, I was thinking of majoring  in Aerospace engineering and minoring in Electrical engineering. Any suggestions? p.s. the propulsion includes, but is not limited to: anti-gravity/warp-drives  (Which physics says is plausible)

Topic by monkhm 8 years ago  |  last reply 8 years ago

stirling engine

This is just my burning question for anyone who has mad skills in engineering. how do I build a small stirling engine generator for home use to run off a non-combustion heat source ie solar panels?

Topic by djsc 10 years ago  |  last reply 8 years ago

chat engine

I was wondering if instructable authority could a chat engine to instructable. I m saying that because many of us are in need of help what we do through updating posts. So, if there is a engine we can get the solution right on the spot. Rest of is up to the authority..

Topic by crazynath 8 years ago  |  last reply 8 years ago

Experimental engine Answered

Would connecting like 2 or more single cylender horizontal engines like briggs and strattons together flywheel to shaft run as like a 2 cylender in line engine? or has anyone done it even? example : if      [0-     represents an engine with the [ being the flywheel, the 0 the crankcase/block and the - a shaft then this is my idea [0-[0-[0-  and so on like a two cylinder would be [0-[0- would this work? what would i have to do to get this to work?

Question by chris24f22 7 years ago  |  last reply 7 years ago

jet engines

Um yeah just like that guys picture but without the weird background or the guy on the board

Topic by toxin14 7 years ago  |  last reply 7 years ago

Engine to Compressor? Answered

I am planning on making a very high volume compressor from a small engine.  I plan to adjust timing and stuff accordingly.  I just wan't to make sure an engine can handle the pressure.  I assume it can because of the explosions it can contain but I just want to be sure it can handle 125-200psi.  And also, is 2 stage really necessary or can I just push all the air in in one stage with a couple pistons.

Question by 8 years ago  |  last reply 8 years ago

knex engine?

Hi everybody im still new and don't know anything about knex but i loved the idea of making engines is there any special kits to innovate new engines and make something new , is there any calculations?? can anybody help me by giving me information websies abou knex for beginners especially for engines. can a knex engine work with compressed air or just with attaching the drive train with an electric motor is it easy to make and is it good idea for prototyping you ideas?? thanks i know that i asked too much questions (im still beginner) and i know that the instuctables knex PROS will be helpful with me PS ,can anybody tell me where can i get a good price buy for a knex kit that contain everything for my infinity innovation

Question by vwtm2006 6 years ago  |  last reply 6 years ago

Search Engine

The web guys should write a search feature that counts the number of times a word or phrase is searched and then displays that value whenever that same word or phrase is searched. A separate page containing the top searched words or phrases could be added. A feature such as this would allow members to create instructables about topics in demand.

Topic by HuggyBear 10 years ago  |  last reply 10 years ago


I was thinking that what will happen if we arrange inlet & exhaust valves on the piston (spark plug remaining on cylinder head)? i think that may be by using metal foam on the cylinder head the knocking of the engine might decrease. please assume that somehow i use proper mechanisms for valve timing & they dont have any appreciable effect on the piston. just consider that the weight of the valves is added to the piston. i was wondering that this might increase the efficiency of the engine because suction will take place more slowly (so it will near a reversible process, so efficiency will increase) & force of the explosion will be better. please you ppl; if anybody can give me satisfactorily explanatory answers, do reply! :)

Question by coepian 8 years ago  |  last reply 8 years ago

Steam Engines? Answered

I am wanting to make a small solar steam engine and am wondering what pressures they run off of usualy? Can you power a pneumatic drill or grinder with steam and use it as a steam turbine? How do people make small boilers to power the steam engines? I was thinking a peice of copper, iron, or galvanized pipe. I would heat it with a fresnel lens from a rear projection tv. Can the spot from a fresnel lens me further focused with a normal glass magnification glass?

Question by snowluck2345 8 years ago  |  last reply 5 years ago

Stirling Engine

I have a 4.3l v6 that came out of a s-10 pickup.  I was wondering if i could make it run on the stirling cycle? It is a 90 degree v6 so it should work, This is the only site i could think of to post this question on. I was thinking i would isolate the waterjackets to the right and left bank of cylinders then heat one side and cool the other. I am good with engines and am skilled in the garage. I'm just tinkering. Maybe run a generator with it if it runs. I have a welder, plasma cutter, ect and can use them. Just kinda throwin it out there...

Topic by qparker 8 years ago  |  last reply 8 years ago

Search Engine

I don't know if anyone else has had this "problem," but the site search doesn't exactly provide the best of help.  When I search the site for something, It'll often return 'ibles, forum discussions and other things as unrelated to my search as possible.  After browsing or going down the search results a way, sometimes I'll find an 'ible with almost my exact search term in the title.  IMO, something that should be at the top of the search results.

Topic by DavidKaine 8 years ago  |  last reply 8 years ago

Engineering Fellowship

Re:char seeks an entrepreneurial engineer ready to change the world. You'll be working with our 5-person team, operating out of a shipping container workshop of our own (evolving) design. A willingness to work on a start-up schedule and ability to live, full-time, in Kenya is essential. Requirements: -BS in a technical field or beyond-equivalent work experience. -A willingness and desire to spend extended periods of time working in developing countries -Experience with the following techniques: welding, 3d design, fabrication, improvisation -Interest in and familiarity with low-cost design principles for bottom of the pyramid customers Ideal candidates will also possess the following: -Experience/interest in agricultural technologies -Familiarity with biochar/charcoal production technologies -Familiarity with combustion/fuel chemistry Some of the more interesting tools you'll have 24/7 access to include: -4'x4' plasmacam cnc, with parts to build several DIY cnc setups ordered -multiple welding processes (tig, oxy, arc, spot) -extensive metalworking and woodworking equipment This fellowship will last for 6-12 months; a strong performer may then be offered a long-term, equity position **This position is paid, with a small stipend + expenses** **You should only apply if you care more about making awesome stuff than rolling in piles of money** To apply, email me ( ) the following: 1. Your resume 2. An explanation of why you want this job 3. 1 picture each and a 1-sentence description of the 3 things you've built of which you are most proud 4. A description of one thing you'd want to build in the shipping container shop and sell to customers in developing countries -Luke  

Topic by liseman 7 years ago  |  last reply 7 years ago

Recording "engineer"

Hey guys, i was wondering if any of you are experts at home recording, and also if anyone has the ability to re-master my home recordings...i have a microphone, and sony acid 5 which im about to get rid of for a better program... i really want to release an ep soon, but im gonna need alot of help! and also, if any of you know how to get auto tune and show me how to work it, it would be great.. orrrr if you do cd packaging/printing, or screen printing...message me please! thank you. and i am willing to pay you! or even if someone could point me in the direction of all the equipment and help me get myself set up at least...anything at this point would help. thanks.

Topic by luna522 10 years ago  |  last reply 9 years ago

simple steam engined cheap steam engine?

Simple an

Question by suneelranga21 8 years ago  |  last reply 8 years ago

Electrical Engineering Schools

I want to go to a good electrical engineering college. I've been looking at schools like Georgia Tech, and University of Michigan Ann Arbor. I'm leaning toward Georgia Tech, but which college would be the best. My Reach is MIT, considering my scores are high enough. So if I magically get accepted to all electrical engineering colleges, which should I go to?   My potential college list: Boston U Bucknell U Carnegie Mellon U Cornell U Franklin W Olin C En Georgia Tech MIT Miami U Oxford Penn State U Park Polytechnic I of NYU Rensselaer Polytec I Stanford U U Calif Berkeley U Illinois Urbana U Michigan Villanova U Virginia Tech All offer Electrical engineering and rank in the Top 100 based on various US surveys and ranking list for Graduate Education 

Topic by monkhm 8 years ago  |  last reply 7 years ago

Engineering Class Suggestions

I'm part of an Engineering Club at my school and we're looking for future projects that just explore some ideas of Engineering in general. We would like to come up with our own ideas at some point, but for now, a lot of us are inexperienced, so I thought I could come here and find some stuff. So far, we have decided to build a bunch of Stirling Engines and use them for miscellaneous things, but after that, we have no other ideas. Could you guys come up with some ideas (possibly your own or ones that you have done), that are similar to this idea of teaching the basics of making things and stuff like that? Links would be helpful. Guidelines: Because we do this at school, there are certain rules that prevent us from bringing large knives and laser pointers on campus. Power tools and exacto knives are OK, though (IKR?). Also, because we are students, we have to scavenge around for materials, so unless it's less than ~30$, we might not be able to do that either.

Topic by jaxter184 6 years ago  |  last reply 6 years ago

Old Engineering Exercise

Hello all! I was just looking through various Maker projects, here and elsewhere, and was reminded of a collage engineering exercise I was told about growing up.  Apparently, they don't do it any more.  My education is only up to an Associates Degree in Drafting and Design, and I never got this at that level. This exercise (near as I can remember) consisted of a student being given a piece of aluminum (I think) and a set of files, a caliper, and a few other small tools.  The student then had to turn the piece of aluminum into as near a perfect cube as they could, using only those tools. Has anyone out there heard of this exercise before?  Maybe done it themselfs? Namely wanted to through this out there, see what people thought.

Topic by ProfCoppersmith 1 year ago  |  last reply 1 year ago

Is reverse engineering illegal?

Is reverse engineering illegal? Well, if you then go on to sell your version? For example, in an upcoming instructable I'm modding some electronics, well, without revealing my instructable here's an equivilent example: Lets say I buy a little robot at the store, it has motors and the case and everything. Only problem is, it runs on AA's and you want rechargable batteries. Also, the wireless module for some reason is external and is super ugly and annoying. You crack open everything and you find that the needlessly large circuitboards only have about 20 (somewhat) easy to find components that adds up to like 2 dollars. Following traces, you recreate a schematic from the PCB (already did this, that was fuuunnn :P). Now you reengineer the board (still same schematic) so that it's much more compact, you've added a little charging circuit (and correspond boost circuit, replacing a couple of AA's with a lithium ion), and you made it all fit inside the robot (no wireless module just hanging around outside the robot. Now, essentially the schematic is the same, but you've added stuff like the boost circuit and charging circuit. You've also added a few customizing features that make it more special (adding LEDs, microcontroller, cough cough etc.). Would it be illegal to sell a board/kit (incase other people want the board and can't solder smd to good) for people to modify there own robot (same model etc.). Also, the schematic from the reverse engineering is very similar to an example circuit in the main chip's datasheet, and a few other parts are common sense (like some resistors here and there, LEDs, a few extra filtering caps), so the company's circuit is nearly identical to the datasheet, is this illegal to sell?

Topic by guyfrom7up 10 years ago  |  last reply 10 years ago

Renegade Teenage Engineers

Now this is a collaboration.

Topic by fungus amungus 11 years ago  |  last reply 11 years ago

lego steam engine

Enginethis isnt my site but here are instructions for a lego steam engine

Topic by nick.z 12 years ago

Pocket Jet Engine

Where can I find The metal pen barrel and parts, for the pocket jet engine?

Topic by koolsk8ter111 10 years ago  |  last reply 10 years ago

Cheap Jet Engine.

What Jet engine can I build for $50-$200 in price? And that is small? it could be any type of jet engine, I just want to start building one.

Topic by koolsk8ter111 10 years ago  |  last reply 10 years ago

Mechanical Engineering Assistance

I am a mechanical engineer and solidworks expert with over 10 years experience in new product design and development. I offer services for hire and free advice when I'm available. Feel free to contact me for advice or assistance.

Topic by lymanjbishop 6 years ago  |  last reply 5 years ago

subaru engine swap?

Hey guys, currently just a hypothetical but wandering what issues i would be likely to encounter dropping the engine of an impreza wrx into a 93 brumby ? also thinking of the transmition?

Question by milamber 7 years ago  |  last reply 7 years ago

Lionel 2046 Engine

I have a Lionel 2046 engine  It has three windows. It is Heat Stamped on one side and Rubber Stamped on the other side. Does anyone have any idea what year this engine was manufactured? Thank you.

Question by EdwardA4 2 years ago  |  last reply 2 years ago

Thesis project engineering

Hello everyone, i'm in my fifth year industrial science, and next year I need to accomplish a thesis project. At the end of this year I need to find an interesting project, something that has to do with fysics, math, mechanics and electronics. of course its almost impossible to have a project that has to do with all of those subjects so you can leave some out. Has anyone some bright ideas? I've been looking but I have not found what I need yet.

Question by SimonG86 1 year ago  |  last reply 1 year ago

motorbike engine tuning

Just download and start reading

Topic by axeman.99 5 years ago  |  last reply 5 years ago

Replacement minibike engine? Answered

I have a 2006 Mini Baja Minibike( with more than a few problems. As of now, it won't even start, and I can't find the problem. I've cleaned anywhere that fuel goes, air filter, exhaust, and adjusted the carb,  it still doesn't start. When it was running, it didn't even idle. So I'm wondering, would an engine swap with this: engine work? It seems almost identical; but I"m not sure.

Question by The Dark Lord 6 years ago  |  last reply 6 years ago

search engine for instructables?

How come i cant find an instructables search engine that searches an instructables database?? I would certainly use this site alot more, as it is, I dont know If im going to resubscribe. C'on Instructables!!!!

Question by bestburglar 6 years ago  |  last reply 6 years ago

Increase compression of an engine Answered

I am hoping to find a way to increase the compression of a small.18 radio control engine. I was wondering if applying high temperature epoxy would work because it will go on the sleeve rubbing against the piston or holding aluminum foil with the epoxy. 

Question by jbaker22 7 years ago  |  last reply 7 years ago

Wisconsin Engine ID? Answered

I need to ID a Wisconsin engine because I want to get some info and work done on it, but the plate on the front of the shroud with the info is almost un-readable.  Is there another way I could ID it?  I have some info I pulled off of it, check the pictures. Thanks

Question by Electric Spectre1 8 years ago  |  last reply 8 years ago

Looking for Electrical Engineer

The company I work for is looking for a full-time in-house creative EE. We design products for commercial and consumer applications.Here is our website:Griswold EngineeringWe need one innovative Electrical Engineer with experience programming electronics, as well as designing boards and circuits.Metro-Detroit area.Contact me if interested.

Topic by whiteoakart 9 years ago  |  last reply 9 years ago

Search Engine Optimization

Hello,   I want to know about seo search engine optimization and how can i take internet marketing projects or global marketing project. Please help me...

Topic by Pradeep2821 4 years ago  |  last reply 3 years ago

Trimmer Engine Generator

   Hello Instructables community.    I was thinking of making a 12 volt battery charger with a trimmer engine (pictured) connected to a scraped car alternator (I found several on eBay). But I have a few questions: 1. Would such a combination work as shown in the illustration?  2. Would it be best if I directly connected the engine to the alternator with no drive belts or chains, or would the high gear of the large engine gear and small generator gear be worth the extra trouble.  3. What is the best way to connect the two? And 4. Where should I remove the engine from the "trimming part". Any answers will be appreciated.                                                                                                                       Sincerely                                                                                                                  Confused DIYer

Topic by maalikm911 2 years ago  |  last reply 9 months ago

Electronic Engineering Project?

I am Student of Bachelor in Electronic Engineering in Final year starting, I want to select my Final Year Project and I have my passion in Robotics, can anyone please suggest me a great project.

Question by innocentkhalil 4 years ago  |  last reply 4 years ago

Turbine Jet engine...? Answered

If the intake turbines' speed is regulated by the compressed exhaust over the rear turbines, would it be more effecent to have 2 props in a row, or a single large one at the rear of the engine to control the rotation speed?

Question by shawneegeek 9 years ago  |  last reply 9 years ago

alcohol expansion engine?

While expirimenting in my back yard i came across somthing. I was working on my steam engine and was testing the boiler with methyl alcohol as the heat source( i used nitro car fuel 20%) and i wondered what would happen if i put the alcohol in the boiler. I heated the boiler at the same temperature as i normaly heat water and the alcohol seemed to produce alot more vapors at a faster rate and volume than just steam. So... I was wondering if it was possible to create an engine on the same basic design as a steam engine that ran on alcohol expansion. I do not realy plan on creating this i was just wondering if it would work as good or better than steam. If someone has already made this please tell me. Thanks

Question by myakka 7 years ago  |  last reply 7 years ago

Electronic Engineering Project

I am Student of Bachelor in Electronic Engineering in Final year starting, I want to select my Final Year Project and I have my passion in Robotics, can anyone please suggest me a great project.

Topic by innocentkhalil 4 years ago  |  last reply 4 years ago

Tiny Jet Engine

How can I make a jet engine that is realy tiny? I heard about this so called pen jet, can someone make an instructable, if there is one like that,? Or can you tell me how to make something tiny?

Topic by koolsk8ter111 10 years ago  |  last reply 10 years ago

LEGO Difference Engine

 Babbage never got a chance to build his difference engine. Ironically it is considered one of the most advanced and is arguably the most famous of these old mechanical computers. One was eventually made in 1991  for the Science Museum in London. Don't live in London? Too far to drive? Well, no worries, Andrew Carol has built a working difference engine from LEGO's and with a kind donation of server space from Steve Wozniak, he's posted a very detailed explanation of his project so you can build one too!

Topic by Culturespy 8 years ago  |  last reply 8 years ago

Embarrassing Moments in Engineering

Mental Floss compiles four great examples of not-so-great engineering feats and one dramatic fix. The Tacoma Narrows Bridge makes an appearance, of course, as well as three other detailed examples to learn from. Mental Floss articlevia Neatorama

Topic by fungus amungus 11 years ago  |  last reply 11 years ago

Rocket engines, anyone?

 How can you make a simple rocket fuel with only materials that you could get from your local hardware store.

Question by 2tautges 9 years ago  |  last reply 9 years ago

Jet engine parts

Hi Guys Can anyone please help me. I have recently purchased a few parts for a jet engine off ebay as a possible project but can't find what engine they may have came off.  The combustion chamber is different to what you see in smaller rc jet engine. The turbine wheel blades are dove tailed like on bigger jets and the compressor wheel has an inducer of around 95mm. I would imagine if this could ever run again it would produce a serious amount of thrust. I have uploaded some photos and would be grateful of any help.  

Topic by hughes674 5 years ago

Jet Engine Problems? Answered

I have been building a mini Jet Engine.  I have a VERY STRONG electric fan for the compressor.  Outer shell is made of sheet metal.  The fuel I have been trying to use is gasoline.  The intake is about 2.5 inches across and about 3 inches in it begins to close up to about 0.6 inch diameter where the air is compressed and mixed with fuel before being burnt.  The problem is that its starts but it explodes.  Is it too much fuel, to much compression from the compressor, to small of a diameter for the combustion chamber and exhaust or something else completely?  Haven't done much with jet before so any help would be appreciated. Thanks

Question by Electric Spectre1 9 years ago  |  last reply 8 years ago

V6 Stirling Engine

I have a 4.3l v6 that came out of a s-10 pickup.  I was wondering if i could make it run on the stirling cycle? It is a 90 degree v6 so it should work, This is the only site i could think of to post this question on. I was thinking i would isolate the water jackets to the right and left bank of cylinders then heat one side and cool the other. I am good with engines and am skilled in the garage. I'm just tinkering. Maybe run a generator with it if it runs. I have a welder, plasma cutter, ect and can use them. Just kinda throwin it out there...

Question by qparker 8 years ago  |  last reply 8 years ago