Can an Instructables Member Make Classes?

Hello, I'm part of a company that does a lot of stuff that customers would ask questions about, and I was wondering if it is an option to make classes on Instructables or if that was a potential consideration from your end. I would find it useful, even if it was limited to a Pro membership. It's something that I think personally my company would consider paying for. I would even consider it individually. The ability to make classes that people would want to learn would be invaluable. Of course the only question would be is if others feel the same way I do. If this is already a feature that I can take part in, let me know, as I'm not currently aware of any way to access it, and I don't want to pay for a Pro membership unless I know for certain that that's a feature that would come with it. I would appreciate any answers you can give on this topic. Thank you, and hope you're all having a pleasant day. -DJBarnett

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

Legal consideration of steam boilers?

How large can a model steam boiler be before it has to be regulated/inspected/or subject to various other gov stupidity?

Question by PS118 3 months ago  |  last reply 3 months ago

DIY radiator design considerations?

I plan to build a radiator for a room. I can do the physics i.e. heat transfer etc. My question is really to any heating engineers out there: Are there any design considerations that I need to include so that the new radiator does not upset the existing central heating system (that heats the whole house). Thanks in advance.

Question by alexhalford 9 years ago  |  last reply 8 years ago

positive charges are considerate as immovable why ?

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

Practical considerations when using transformer

Hi everybody! I basically love doing LED experiments and i was replacing many of the night lamps and stuff with simple LED circuits i made. Now i have few questions: 1) I generally use transformers to power them (230v/12v). Now apart from primary and secondary voltages and currents, are there any other ratings which i should consider? 2) I have made a portable night lamp with blue LED's. It has 4 arms in parallel and each arm consists of 3 LED's in series. All the arms are connected finally to a single 100 ohm resistor. Now as at most the whole setup might draw about 50mA of current. I had a transformer rated for about  500mA of secondary current, and so i used it with the setup. Will i have any issues using this? (Although i am sure i won't, but just in case anyway) 3)  Also, the transformer gets hot. How much temperature is in safe operating zone? The setup i used, after an hour, got pretty hot. I could barely hold it for a few seconds and i had to let go. Is it okay if it gets that hot?

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

volume drop ?

When useing true bypass a considerable volume drop occurs. no poping or distortion engaged or nonengaged (effect ) is present.

Question by 9 years ago  |  last reply 9 years ago

My classroom projector screen will not retract all the way without considerable effort, how can I fix it?

Humorous to my students, aggravating to me... With several attempts, I can assist the retraction spring by lifting the screen into the storage part and have it rolled up enough that I can rest the handle and... bar, for lack of a better term, on top of a bulletin board.  Is there an easy fix or should I just start looking for funds for a new screen?

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

How to make RC Plane on our own?

im intersted in RC plane alot and want to make one of my own. What will the design considerations and all the other related stuff?

Question by Ayesha Shafi 8 years ago  |  last reply 6 years ago

How can I post ideas for the site? Answered

I have an idea for instructables. Its a new instructables sidebar on the homepage. It shows the most recent instructables. How can I post it to the site for consideration.

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

Prizes for outside US being 240v instead of 120v?

As a contest winner not in the US, has any consideration been given to supplying electrical items in other countries voltages (ie 240v), should be relatively easy if coming from Amazon

Question by buck2217 2 years ago  |  last reply 2 years ago

I have a question about how voting and judging work in a contest. Answered

I noticed that it's not always the instructable with the most votes that wins. And after voting ends the judging begins, who does the judging and what do they take into consideration?

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

Is there a clear top coat that will bond to a copper penny floor??

We are in the process  of laying a copper penny floor in our entryway. Is there a clear coat for the uppermost layer that will bond to the pennies, and stand up to foot traffic and cleaning? Thank you for your time and consideration!

Question by laurel1020 5 years ago  |  last reply 5 years ago

OLPC call for educational content

Can you think of something useful and fun to teach children through the OLPC $100 laptop? We've created a group where you can submit Instructables for consideration to be included. Instructions for how to do this are here. Feel free to submit both old and new Instructables!

Topic by ewilhelm 12 years ago

fun projects? Answered

hi my name is gabe well summer is sucking  over here so my little brother and I are thinking of what we can do any ideas and please no science fair type projects more like for entertainment of me and him please take that he is 7 to your consideration thanx members of instructables !

Question by ladieslilman98 8 years ago  |  last reply 8 years ago

Re-instate project syndication?

A while ago this was possible, and now that I'm interested in making a personal site, I was hoping to load and style my  instructables content on my site? I made this to help when it was enabled (or obvious) back then. Thanks for any consideration!

Topic by nak 8 years ago  |  last reply 5 years ago

Field of view of a lens?

Hunting through the attic I found an old 35mm projector. I wondered what governs the field of view of the lens system - for this projector it is obviously about the size of a 35 mm slide but for my video projector it must be considerable bigger although the lens looks similar. (I know hat isn't a very scientific judgement!)

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

Crossbow bolts

Crossbow bolts are considerably expensive. I just invested in a crossbow and I'm looking for a cheap way to make practice bolts. Given many tutorials out there that explains how to melt aluminum and how to cast things from aluminum, I was wondering if someone instruct us on how to properly create a crossbow bolt (and arrow)

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

Received an email saying the instructables is featured but not featured in site

I got a mail saying my green house instructables is fetured. But it is not showing up in site as featured. Kindly look into this issue. I had given a considerable amount of time in making it. Passion Make

Topic by Passion Make 3 years ago  |  last reply 3 years ago

Any idea how to build a 12V iron box???

I'm coordinating a community upraising project in Kenya, and we're doing green energie workshop as well as re-use of plastic bags by fusing them so we're looking for a green way to do it... 12V Iron box would be perfect... Thx for your consideration.

Question by longcesttoi 9 years ago  |  last reply 3 years ago

CAMPING WITH COMFORT using a peltier teg cell

It seems to me that a fridge using a peltier thermo generator would be perfectly coupled to a water heater and add considerably to camping comforts. I want to do this and have three 100W units but good advice is well worth having to start with. Has anyone done it yet and what sort of volumes /temperatures can be expected?

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

how to find the amount of steps for a stepper motor to make one complete revolution?

My stepper motor is a unipolar 12volts .66 ohms from center tap ,(not taking in to consideration the resistance of the digital ohm meter I used). I am trying to find the amount of steps per revolution. I do not have any more data on the above mention motor.

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

how to make a railgun at home?

I would like to make a railgun at home, but i need to know how many capacitors, how to make the rail, etc. i was hoping to be able to do it with disposable camera parts. there is a tutorial on here on how to do it but i cannot get enough information from it to be able to build one. It would also be nice if it was considerably powerful. any help? 

Question by hawking8662 6 years ago  |  last reply 6 years ago

I Need to make a large 40" wide sleeping bag. Low cost .

 I'm thinking a couple of blankets safety pinned together with a wrapping of that reflective poly sheeting ( I have some) this mite work out if it wont rip or crackle loud when I roll over. ?.  I will be leaving it in one spot, so weight is not a consideration. .Anyone with experience with this?  thanks  Jon

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

TI-84 program for simpifying radicals into a form like number plus rad(9) ?

I already have a program that simplifies radicals but dont feel like adding on a feature to take in consideration of things being added to it or subtracted from it. Anyone know of a site that has the source for a program like that, if not i guess i will just have to do it myself.

Question by froggyman 10 years ago  |  last reply 10 years ago

Need information on 3D printing

So I am looking to make decorative phone cases using a 3D printer. But I have no experience with them. Essentially what I am hoping to do is make snap on or slide on covers. What kind of 3D printer would be able to do this? What sort of designs/colours would I be able to do? Anything I have to take into consideration?

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

Links to Files Giving a 403

Howdy, It's been pointed out to me that the links in one of my instructables are not working. The .doc files linked on this page: are getting a 403 Forbidden page. This seems to be something going wrong on the instructables' server -- could it be looked at? Thank you very much for your consideration in the matter. Philip

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

I would like to find the pattern for: Baby Blanket For Polly.

This is a knit pattern for a baby blanket or afghan in what looks like a shell pattern. I had the pattern many years ago and have misplaced it. I would like to make it again for a very dear friend who is going to have a baby soon. Thank you for your consideration, Mary Ann

Question by 9 years ago  |  last reply 9 years ago

Contingency Plan

As part of my disaster readiness planning, I have given the scenario of a global economic meltdown much consideration. To this end I have compiled a thorough step-by-step contingency plan. I am happy to now be able to make this guide actionable and will be sharing all of this information as an Instructable shortly. How about you? Have you done any preparation? Have you given the matter any forethought?

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

How to make a GameBoy SP charging/suspension protected stand with room for the Pelican 3x battery pack in use?

I have been trying toy design a stand much like necropolian's "knex safe gameboy holder" , but I have ran into a brick wall because I have the Pelican 3x battery installed, which makes it considerably thicker, about 1/4 of an inch.Please help!

Question by mechaninja 9 years ago

Stool Caster Repair

I have a short stainless steel stool on wheeled casters. The caster itself is in two parts; the wheel with a long prong that inserts into a receptacle which together fit into the leg of the stool . See attached jpeg of the receptacle in question. I need 4 of these receptacles. Can anyone direct me to where they can be had? Thank you in advance for any consideration you give this matter. dtpostel generic layperson

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

How does the Bernoulli effect affect the ground effect?

I have been wondering about how ekronoplans work with consideration of the Bernoulli effect. Ekranoplans such as the Caspian Sea Monster often have there engines or propellers pointing on a downward angle, this is to push as much air under the wings as possible, in doing this they are forcing the air into a constriction being the wing and the ground, now why doesn't this cause a vacuum pulling the craft down?

Question by The MadScientist 7 years ago  |  last reply 7 years ago

Getting Featured

I have tried everything I know how to improve my recently submitted instructable titled: "Eyeglasses Loss Prevention". I feel it is much improved and would like to know what else I need to do to get it recognized by the powers that be.Can anyone offer some advice on this, I will try my best to comply with any helpful recommendations. Thank you very much for your kind consideration.

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

Remote Control Backing (Missing, best solution)?

Hello, I have a remote control that has no back to it as it was damaged at some point and discarded. Can anyone please recommend a neat way to keep the batteries in the remote, as sellotape ismessy, not particularly reliable and leaves a nasty residue/mark and isn't particularly convenient to remove when replacing the batteries. Thank you so much for your consideration!

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

How possible would it be to build a pedal-powered mobile toast shop?

I am thinking to build a bike-with trailer that powers one or more toasters, by charging a battery then releasing that power. Do the electrical among you believe this is practical? Could there be enough lekky? What considerations should I have? Also - a lot of instructions for this on the web are based on US power supply. Does anyone have any links to UK based instructions.

Question by xhalmers_860 9 years ago  |  last reply 9 years ago

Need regulator and compact solenoid 5/2 valve for small scale Co2 powered system.

Looking to drive a 5/16ths inch pneumatic cylinder all in a self contained package. Cylinder is rated for 150 psi and the 12 gram co2 i was planning to use is 900 psi so i need to reduce it considerably. I'm trying to make a moving costume piece, not a battlebots weapon or a bomb.

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

Bd 241c VU meter from a 100 mA ammeter?

I want to make a VU meter from my 100 mA ammeter with my bd 241 c transistor. Is it possible in an easy way, or I 'm just spending my free time with my doing nothing? :D Please take into consideration that I'm a really beginner, so explain like this.

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

ATX power supply to run a raspberry pi

Has anyone used a ATX power supply to run a raspberry pi with peripherals such as hdd's and dvd drives. If you have what considerations should I take into account, I found this howto here but it's for making a lab power supply so not exactly what I need. Thanks

Topic by donestuff 5 years ago  |  last reply 1 year ago

"...bigger than its belly can"

Of all the engines I am surprised not to have seen made here, the valveless pulse-jet is it. Sure, they're inefficient and relatively low-powered (compared to a "normal" turbine-based jet), but they are astoundingly simple.At heart, it's a swollen pipe with a fuel supply and no consideration for the neighbours.These suckers are loud.So maybe you want to ?Or just look at the way this engine is mounted, imagine riding it, and shuddering in anticipatory panic.

Topic by Kiteman 11 years ago

Computer controlled crossover?

Hey guys, I've been wanting to ask someone about this idea for a while now. You know how you can get programs like SRS Wow that's built into windows media player? There are also other assorted Equalizer programs (with sliders) or for effect, to change how your music is playing. If these programs can do this merely with cpu power, is there a way I could have a source from the mic/input plug on a soundcard in one of my spare towers, and say, re-route it to the speaker/output on the card, but say, have a subsonic filter in place between the input and the output of the card, using only software? I'm pretty Effin sure this has to be possible, and yes I can take into consideration that there could be some considerable cpu usage for realtime playback. My goal would be to say set in place a 20 or 30hz cutoff point and then run that to my subwoofer amp, or use two seperate towers, and run my other subwoofers I have sitting around, but they need a higher cutoff point as they are only 8-10inch woofers. Could anyone lend a hand?? I know this has to be possible somehow.

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

How practical is using bismuth for stovetop heat transfer? Answered

A stove that heats pots by induction is a nice idea, but it is still not common and will not work with all pots.Suppose, instead, the pot and resistive heating element were placed in a well that was filled with bismuth or another metal that has a low melting point. How would the efficiency of this compare to a pan sitting on an induction cooker, gas stove, or ordinary resistive heating element? What would be some important practical considerations, if this were implemented?

Question by NobodyInParticular 10 years ago  |  last reply 9 years ago

Project Idea feedback!

Hello! I am currently doing a project for school in the realm of digital design and tech where we have to create and develop an idea to solve a problem. I have chosen to create a laser cutter and need feedback about the considerations of what it should be like, price range, features, functionality and etc. Any input would be greatly appreciated! So here is my survey Anything other input other from the survey is welcome as well! Thanks!

Topic by slackj 2 years ago  |  last reply 2 years ago

Image quality problem

I take screen shots with Snagit and the files are just fine but whenever i upload them the quality drops considerably.  I've tried JPEG's and PNG's but they both produce the same result.  Normally i wouldn't care but the quality drop is so horrendous the data is unreadable.  I sent an email to support but they stopped responding after I informed them that both file types suck.  Even the provided capture is bad but hopefully you can tell the difference between the two.  Please help

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

Scholarship Robot Proposal: Plant Gardener

This robot would tend to a high value plant. The plant would sit atop the robot and the robot would seek to maximize light during the day. It will slowly rotate on itself to allow all sides of the plant equal sunlight ensuring an even growth. It will slowly travel accross the room seeking sunlight from other windows as the day progresses. Finally, it would detect people walking by and wuold warn them when the plant needs watering. Simple idea with achievable goals. Thanks for your consideration!

Topic by loubard 11 years ago  |  last reply 11 years ago

anybody using on demand hydrogen to heat hot water?

Hello all - I am interested in either converting an existing gas-fired hot water heater to burn homemade hydrogen gas, or building an on demand heater powered by same. Is anybody doing this? What are the issues, beyond safety of making your own highly flammable gas? lol... I am thinking jet/hole size on the gas burner ring for efficiency considerations, corrosion issues, etc..... THanks in advance... Matt

Topic by concreteblue 3 years ago  |  last reply 8 weeks ago

what's the gel made of inside a pressure activated cooling pad? Answered

I'd like to know what the GEL is made of inside those clever cooling pads sold as mattress cooling pads and pet cooling pads. And, can I make my own version for my dog at a considerably reduced price from the on-line stores? I don't want the freezer gel recipe,(water and rubbing alcohol), I need the pressure activated type gel recipe. THANK YOU INSTRUCTABLES COMMUNITY

Question by 1way2go 5 years ago  |  last reply 2 years ago

Replacing the CPU on a laptop to a Dual-Core? Answered

I recently downloaded Call of Duty: Black Ops, but there seem to be some problems. My CPU simply isn't powerful enough run it. Price is no option, all I need to know Is whether or not it is even possible to replace the CPU of a laptop. Any recommendations for a dual-core processor, and/or help installing it would be greatly appreciated. EDIT 1: Dayum, that's a lot of suggestions... but very helpful nonetheless. After careful consideration (and some extra cash) I believe an Alienware shopping spree is in order. Thanks everybody :)

Question by jrg3ni0us 7 years ago  |  last reply 7 years ago

Refinishing hood of early 90's BMW?

My buddy has an early 90's BMW...the model number slips my mind. It's jet black, but for reasons unknown, the front hood's clear coat has faded considerably. I was planning to simply mask everything and use some DuPont Clear Acrylic lacquer that I picked up at an Advanced Auto Parts store nearby; then buff it out later with polishing compound. Am I missing anything? It's completely rust-free, no dents etc. Thanks.

Question by guitarman63mm 10 years ago  |  last reply 10 years ago

UK Laser Cutting and Etching

We're offering a 20% discount on our regular prices  to all UK Instructable Pro members who need laser cutting or etching of acrylics, leather or wood. For some examples of our recent work see. Our pricing is based on 50 GBP/hour machine time. Etching is considerably slower than cutting.... Contact me via PM for details and a quote. Steve

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

any interest in this?

Well you guys, I just finished my knex crossbow/rifle I'm working on, and im thinkin on makin an instructable on it. The reason for me posting this is asking if you guys think you may wanna try and make it, before i waste tons of time on it. Here's the description of it: Its a very sturdy weapon, which means it can take a considerable amount of stress. It is not only a crossbow, but the bottom half of it is a single shot pistol which i am currently working on an automatic reload system. Very powerful, and strudy. So if anyone thinks they're interested, I may post it.

Topic by DanAlmighty 11 years ago  |  last reply 11 years ago

is a mix of peat and wood ash good for garden plants?

I always used wood ash from my fireplace for the garden plants but my daughter is burning a mix of wood and peat blocks, she lives in Ireland!  I am not sure if the acidity of the peat is good per se and whether I should be more careful in spreading this around all the plants.  She has a very vigorous and beautiful quince and I would hate anything to happen to this!  There is also an apple and rowan tree, hymalayan honeysuckle and a globe artichoke, and one other consideration is a rabbit that is free range in the garden too.

Question by mariama51 8 years ago  |  last reply 8 years ago