in a counter balanced system, do I need to account for both the load mass and the counter balance mass for acceleration?

I have a simple 2 pulley system lifting a 2400lb mass.  Imagine a chain lift, starting at the load mass, up over a sprocket, across to a second sprocket, then down to a 3000lb counter balance mass.  to move the load down, I'll need to apply 600+ lbf down on the load.  To move the load up, I'll apply <600lbf to the load.  That's simple.  Now, during the move I need to STOP quickly.  Do I need to account for only the 600lbs difference or the 5400lbs of moving mass?   _________________   |O                                O|   |                                      |   |                                      | 3000lb                         2400lb counter                        Load

Asked by JFunsch 6 years ago | last reply 6 years ago

Automtically Logged out Frequently

I have not used this site in quite some time now, but I do have an account. Today as I was viewing the site, I have had to log in over 7 times while reading a single instructable on 4 pages. I keep getting automatically logged out. In one instance of logging back in, I got an error saying that my account was not found?

Posted by fade400 7 years ago | last reply 7 years ago

how can i access administrator account in vista without modifying the original password?

Hi... My brother has blocked me from accessing a drive in vista by keeping a password for administrator.... I want to access that drive without his knowledge n without modifying the original one... Please help me out.. If possible also tell the same for windows 7......

Asked by ateefahmed 8 years ago | last reply 7 years ago

Can't login with &Atilde;&tilde; in name

I made an account with an Ø(oslash) in the name, but now I can't login with it, while I did receive an e-mail in which the account name was spelled right, and the password. If I insert those in the login panel it doesn't work. Is the Ø decoded in the database or something? Is there a way I can still login? byebye thanks for your answer I really appreciate it I love you

Posted by vissen.beuker 9 years ago | last reply 9 years ago

What is an Orangeboard?

I have just joined Instructables and would like to know what an Orangeboard (in Instructables) is.

Asked by YaroslavD 2 years ago | last reply 2 years ago

I can not download instructions

I get Pro account,but I can not download instructions. When clicked on PDF, nothing happens

Posted by mastercity 2 years ago | last reply 2 years ago

how to enter a insructable picture on ur profile

How to post a instructables picture on ur account?

Posted by Sean_Voodoo 9 years ago | last reply 9 years ago

Changing screen name?

 Hi, i was wondering if there is any way to change my screen name. 

Asked by JimJong 8 years ago | last reply 1 year ago

internet security

Is there a means to review and adjust our personal account security settings for this site? i.e. privacy concerns 

Posted by Hudson-108 1 year ago | last reply 1 year ago

remove me from instructables.

Please remove my account and any instructable from any contest. thank you

Posted by sparten 9 years ago | last reply 9 years ago

How to recover outlook password?

How to recover Outlook password forgotten? Need to recover passwords to Microsoft Outlook accounts in local installation on PC.

Asked by CliftonJacks 3 years ago | last reply 3 years ago

blog early blog often

Any body here got a bebo account bebo stands for blog early blog often

Posted by DELETED_Gavabc123 10 years ago | last reply 10 years ago

Pro Instructables Accounts

As you know, the recession has has hit many industries hard; it's even changing the way the internet functions. While we hoped to provide an excellent service for free under an ad-supported model, it's becoming obvious we'll have to do something different to help our community survive this economic downturn. So, in the next few weeks, we'll be launching Pro Instructables Accounts.The pro account feature set is still slightly in flux, but it will give you access to some of our existing features and some new ones:Private Instructables - share an Instructable with only a small group of peoplePatches - create and send patches to other usersFewer Advertisements - No contextual (Google) ads, or ads from indirect networksPro Users forumPDF versions of Instructables, including more customizable optionsView all steps on one pageAccess to secondary images sizes on an Instructable's step All images are available for freeNo captcha for Private MessagesPro badge on user iconWe have not finalized the pricing, but it will be reasonable, and you will be able to join for periods of one month, one year, or two years. Initially, we'll only accept payment via PayPal. Every user who has registered prior to the release of pro accounts will receive at least 3 free months of access to the existing features we are turning pro. During this period, we hope to convince you that the features are useful enough to pay for.Why we're doing this:Instructables provides a tremendous amount of value to everyone who uses it. Our authors benefit from having a superior documentation tool and an already established and sizable audience; our members benefit from our active community management; and our audience (those who do not currently have accounts) benefit from inspiring, entertaining, and useful content. In consideration of Instructables' value, you currently look at and occasionally buy products from our advertisers. Supporting content with advertising is a wonderful system, but it isn't covering all of our costs, so we're asking you to subscribe to support us and the DIY community. One of the things I've endeavored to create at Instructables is an egalitarian meritocracy. Anyone can post an Instructable and anyone can comment on an Instructable, not just editors and approved writers; we don't highlight our admin accounts or often use them to moderate comments because it's important that the community as a whole enforces the "be nice" policy. In that spirit, we won't be giving away free pro accounts. I, and everyone else who works here, will buy pro accounts for ourselves. This may seem like just an exercise, but with it I hope to make the important point that we value Instructables and we want to support it. Having been an Instructables member for a long period of time, or having the greatest number of pageviews will not entitle you to a pro account. Just like anyone can post an Instructable, anyone can become a pro member, and the price is the same for everyone. If a pro account isn't for you, we'll always offer a free account. The free account maintains the site's core functionality, and is extremely usable: You can follow an Instructable's directions, post pictures of your results in the comments or another Instructable, and enter all of our contests and challenges. We've tried to carefully balance providing free access to the content -- so we can provide a large audience to our authors -- against making some of the more bandwidth-intensive value-adding features available only to pro members. As an author, you'll always retain full access to your own projects, including PDF versions.I often tell people that Instructables is an online magazine. In reality it's so much more than a magazine, but as an active member of the community you already know that. I hope you'll subscribe.

Posted by ewilhelm 9 years ago | last reply 3 years ago

Facebook Login issues

Browser: Firefox OS Win 7 I have a Facebook account and an instructables account. I login into instructables and go to link to Facebook ->a quick popup happens. The app for instructables is created in Facebook. Logout out of instructables. try logging into instructables with Facebook button and nothing happens (i.e. the screen reloads and I'm still not logged in) I have emptied cookies and tried redoing the whole process the result is the same.

Posted by SteamOrchid 6 years ago | last reply 6 years ago

why did I just received an e-mail "I saw you started working on your first Instructable"?

I am writing an instructable and i got this email "I saw you started working on your first Instructable". It says FIRST instructable, but i have published 3 i'bles before. Is there any problem with my account? should i be worried?

Posted by Suraj Bhawal 1 year ago | last reply 1 year ago

how can i log on to windows xp after my son made a user account and password he cant remember without software or disks?

On the welcome screen it has his account name as TYLER. He does not remember what he put as a password. how can i get back onto my windows xp desktop without fancy software or a disk?

Asked by maddmike87 8 years ago | last reply 7 years ago

MagicJack notification. ?

I just installed Magic Jack. It works well, but I would like to have the answering machine/voice mail sent to two email addresses. I use AOL as my primary, and AOL won't auto-forward. I can set up a hotmail account, but how can I autoforward the message (with an attached wmv file) to two email accounts (mine and my wife's)? Seems like Magic Jack would have thought of this.

Asked by vectorges 8 years ago | last reply 6 years ago

Share your Instagram account!

I've been instagramming for a long time, mostly focusing on my embroidery work! But yesterday I decided to start a new account for my instructables and more personal stuff, like plants and pets and selfies and whatnot. I'd love to see what y'all are sharing on instagram!! Please share your username or a link to your profile in the comments below so I can stalk you all friendly-like. :DHere are my instagram profiles: making jiggy hand embroidery jessy ratfink P.S. Need some help getting followers and likes on Instagram? Check out my instructable over how to promote yourself (or your business!) on Instagram!

Posted by jessyratfink 9 months ago | last reply 3 days ago


I'm leaving. Not a joke. I may check my account every month or so, but I will barely be doing anything here. Bye.

Posted by jamesdude 8 years ago | last reply 8 years ago

Posting An Instructable

I published my instructable two days ago and it is still not showing... What should I do? By the way it says published on my account.

Posted by jollyrunner 6 years ago | last reply 6 years ago

Swagbucks account trade off for ebay gift card!

Okay I live in Poland and I took part in and earned 749 swagbucks...but then I found out that only US residents can buy stuff from those I decided to do this! Okay now all you need to do is send me a message with an ebay gift card code (Make sure they gift card code is worth 5$ or more) Then as soon as I receive that I will then message the password and username of the swagbucks account and use the swagbucks to buy something! I have 749 swagbucks...which means with it wou will be able to buy : Amazon 5$ gift cards : 450 swagbucks each Paypal 5$ cash : 700 swagbucks Many other 5 - 20 dollar gift cards You can even buy other stuff and not just gift cards! But they only ship to the US or UK or Canada, but the good thing is that shipping is free! Here is the link to the website : So go there now and have a look at what all you can get for 700 swagbucks, and if you like it then just send me the gift card code for a 5$ or more ebay gift card and then I will send you the username and password for the account! Thanks in advance!

Posted by vishalapr 7 years ago | last reply 7 years ago

Anyone getting MW:R for wii?

Hey yeah I could have probably put this in a better category but about the only people I care about adding are people from the K'nex section. So is anyone getting Modern Warfare Reflex? I gotta send my wii in for repair which kind of sucks seeing how I know I won't get it back until way after Reflex comes out (though I'll probably be hanging out at my friend's and sister's playing MW2 on their Xboxes) so don't expect an FC anytime soon. I did awesome in WaW. My starting account had about a 1.4 K/D and I never played an online FPS for wii before. My main account after that has a 2.23 and rising. I haven't used it much since starting to snipe and shotgun. My sniping account has an even 2.0 I think last time I checked. I started a shotgunning account right before my wii broke but I don't remember my K/D. I know it was at least over 1.5 and maybe over 2.0. And then I made another account for lolz to see how high I could get my K/D and had somewhere in the 7.0 range. So yeah point is it would be beneficial to add me =P

Posted by TheDunkis 9 years ago | last reply 9 years ago

What is wrong with my comments?

On my account, it only says that I posted 88 comments, when I posted over 500. Why is that?

Asked by Thelonelysandwitch 9 years ago | last reply 9 years ago


When i tried to reset my password on my old account, Get to da parakeet, It Somehow Got Quientiened!(i have no clue how to spell it)

Posted by Parakeet Crazzzy 10 years ago | last reply 10 years ago

How do you add a friend?

I can't find any way to add or invite a friend on here or on the mobile app. They already have an account.

Asked by TheKatBurglar 5 years ago | last reply 5 years ago

How do you buy something on ebay without having an account? Answered

I need a picture along with the answer.

Asked by Bert99 9 years ago | last reply 9 years ago

How to stop auto payment from Instructables?

I no longer use this service and want ti to stop auto charging me.

Asked by Nastassia 7 years ago | last reply 7 years ago

Mistakenly pay

Hello. Today I paid the account by credit card. But mistakenly pressed the "pay" for the second time. Money withdrawn from your credit card a second time?

Posted by Nikolenko 8 years ago | last reply 8 years ago

Uncharted pages(prf)

Http:// If anyone who has a prf account can get these for me I would be greatful!

Asked by builderkidj 7 years ago

Why are there so many questions about how to delete your account? Answered

Has anyone else noticed this? seems like everyday now.

Asked by jtp139 9 years ago | last reply 8 years ago

Untimely subscription expired e-mail

  I've just received an e-mail informing me my (paid for) pro membership has expired and my account has reverted to the regular level, despite having two 3-month free extensions pending.  It looks like the free subscription has kicked in as my account hasn't reverted, but the e-mail is misleading. (I believe I'm owed a year's prize membership, but I'll follow that up privately.)

Posted by AndyGadget 7 years ago | last reply 7 years ago

Autodesk email validation issue

Hi there, I am just new here so I dont know how it works but I have got a Autodesk problem, I get the email for a Autodesk validation code to my old company email which I am not able to use any more and I changed my Autodesk account already to my private gmail email account, still it doesn't reach me! Any thoughts on this?

Posted by Alexdeluxe22 5 years ago | last reply 5 years ago

Images in the Instructions

To whom this may concern, an administrator or another customer/user of this site, I have a free account, and i know that i can't do things like download pdf's, though i didn't have a problem going through each page and read online, though now, i'm unable to see the multiple images concerning each section of instruction pertaining to the demonstration of the instructions, My questions is: has the free account been demoted by taking away the image viewing privileges?

Posted by thewildnative 6 years ago | last reply 6 years ago

has adding favorites only been a pro member ability or did it recently change to only pro ability? Answered

 I have a friend on Instructables and he is not a pro member, yet he can add to his favorites! yet when I try to add to my favorites list it says I have to be a pro member! is this a recent change or is my friend have some sort of glitch in his account? 

Asked by Apple_4_life 8 years ago | last reply 8 years ago

Why can't I add anything to my favorites?

My Mom and I used to share a Instructables account, but then she made me get my own. But when I went to add some recipes to my favorites, it said I needed to upgrade to PRO. I didn't when we shared an account. Why now? EDIT: Now I can't view all the steps of an Instructable on one page. Before, I just had to be logged on.

Asked by zombie_chinchila 8 years ago | last reply 8 years ago

How Do You Get A Video In An 'Ible Without Youtube? Answered

Like the title says. Here are some examples: (Step one pic 4) and (right at the front). I want to know this, because I want to put short vids on my instructables without having a youtube account.

Asked by random_builder 1 year ago | last reply 1 year ago

how do I renew xbox live membership? Answered

I bought a three month xbox live card for Target, I read it over and over, but I can't find the manage account button anywhere, and the xbox website from load any page(but other websites work fine) Please answer before I go insane...

Asked by Rock Soldier 9 years ago | last reply 9 years ago

how can i install apps?

How can i set up my account so that i can download apps and install different apps

Asked by joashbourg 6 years ago | last reply 6 years ago

How To Get FREE Zoosk Premium Membership?

Does anyone know? Free Premium account for without having to pay any real money?

Asked by corruptcoder 5 years ago

How do I change this code to account for only 1 shift register?

Hi, I am trying to make a midi keyboard as shown But I am not sure how to change this section of code to account for only one shift register (as seen at 5:35 of the video above): void scanColumn(int colNum) {   digitalWrite(latchPin, LOW);   if(0 <= colNum && colNum <= 7)   {     shiftOut(dataPin, clockPin, MSBFIRST, B11111111); //right sr     shiftOut(dataPin, clockPin, MSBFIRST, bits[colNum]); //left sr   }   else   {     shiftOut(dataPin, clockPin, MSBFIRST, bits[colNum-8]); //right sr     shiftOut(dataPin, clockPin, MSBFIRST, B11111111); //left sr   }   digitalWrite(latchPin, HIGH); } Can someone help please?!

Asked by hbade 3 years ago | last reply 3 years ago

User profile service cant find my administrator account on my laptop. can you help?

The title pretty much says everything i can only log on in safe mode but then i cant print or anything. also i cant troubleshoot or anything from the standard user account because my administrator password dosnt work. im running windows 7  32 bit   on a compaq presario cq60 laptop

Asked by Jo-dan 7 years ago | last reply 7 years ago

2-year pro membership not working now

I paid for a two-year pro membership in April 2011. I only have one account and it was attached to this account. I was able to download ePubs and PDFs in April and May. I went to download a new ePub and I am not a Pro Member... I have a PayPal receipt (Unique Transaction ID #9RK99565LL5893423). Please let me know what has happened and how to resolve this issue. Thanks, Vernon vwhite

Posted by VWhite 7 years ago

pro membership expired

My account says that I no longer have a pro membership however my bank shows I paid $11.98 on October 8, 2012.  I did allow my account to lapse months ago and resigned up after having my computer repaired.  My computers motherboard fried and I was without a computer for a few months  which is why I no longer needed pro.  Can you please look into this matter for me? Thank you, Alison Burgess

Posted by alison528 6 years ago | last reply 6 years ago

Question About the Etsy Contest

Hello Jeff, I was just wondering if the Etsy contest is only for sewing. I am not a huge sewer, but I have a few ideas that are "useful" and can make humans' lives easier. Also, I do not really understand one thing. Are you saying that we have to enter 3 instructables into this group that are corespond to the contest criteria? Do we need to make an account on the Etsy site? If so, what do we need to do with this account? Thanks! -Brennn10

Posted by Brennn10 11 years ago | last reply 11 years ago

More Spam

Here is the link to a spam post and a spam user account. me what you think. Is it spam? Or is it legit?

Posted by dla888 9 years ago | last reply 8 years ago

Your cat

This is a place to post pictures of your cat or cats (not internet downloaded exept from places like flickr on your account) and talk about them.

Posted by weirdo62 9 years ago | last reply 1 year ago

lost password and linked email

Is there some way to recover a password to an account other than through email. my old email got hacked and now im locked out of it.

Posted by RedDeadFred 6 years ago | last reply 6 years ago

Well, i'm Bored.

I'm bored, and i had to make a new account, you know how my computer said David, i changed it to my name.

Posted by koolaidslammer 10 years ago | last reply 10 years ago