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iSpin Toolkit

By Michael Golden

This app is only available on the App Store for iOS devices.

Description

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iSpin Toolkit requres iPhone OS 3.0 or later to run
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Do you need an easy way to measure your twist angle? How about measuring a yarn's grist in wraps per inch for either plied yarn or singles?
Do you want to figure out how many twists per inch to ply your singles to get a balanced yarn?
Are you tired of going back to Mabel Ross's and Alden Amos's books for that formula you can never remember?
These capabilities and many more are now available in the first iPhone app for handspinners: iSpin Toolkit.

iSpin Toolkit contains:
 • Twist Angle Finder: Lay your yarn over the screen and swipe until the lines on the screen to match the angle of your twist. Can be used
for singles or plied yarns.
• WPI Gauge: Lay one strand of yarn over the screen and scroll until you find a stripe that matches the width of your yarn. For very fine yarns, wrap around the iPod five times. Can measure anywhere from 2 to 100 WPI.
 • TPI Gauge: Hold your yarn over the square and count the bumps to determine the twists per inch. For singles, let the singles self-ply, count the bumps, and divide by 2.
• Rulers: Full screen inch and centimeter rulers.

iSpin Toolkit contains 13 Calculators for all your spinning needs:

• Project Estimator : How much fiber do I need to spin the specified yarn?
• WPI to Approximate Grist: Converts from wraps per inch to yards per pound.
• Grist Converter: Converts between yards per pound, yards per ounce, meters per kilogram, meters per gram, and even miles per pound and kilometers per kilogram.
• Niddy Noddy Calculator: How long is the yarn I wrapped on my niddy noddy?
• Simple Balanced Yarn TPI from Singles: I have two singles spun to 20 TPI, how much twist should I apply to make a balanced yarn?
• Singles TPI from Desired Yarn TPI: I want a plied yarn of 8 TPI, how much twist should I put into the singles?
• Singles WPI from Final Yarn WPI: I want a plied yarn of 22 WPI. What should the grist of the singles be?
• Plied WPI from Singles WPI: I have singles of 18 wpi. What will its plied grist be?
• Fiber Weight to Singles WPI for Length & Plies: I have 7 ounces of fiber, and I want  2,200 yards of 2-ply. what should the grist of the singles be? What will the plied yarn's WPI be?
• TPI from Wheel Configuration: Given my wheel ratio and how many times I treadle for my draft zone length, how much spin am I putting into my yarn?
• # of Treadles for Desired TPI: How many time should I treadle for a given draft zone length and a given wheel ratio to get my desired TPI?
• TPI for Firmness Calculators using either the Mabel Ross or the Alden Amos Method:  These calculators use two different methods to determine the final yarn's TPI based on the desired WPI and firmness of the final yarn. (soft, medium, firm, etc...). 

Each calculator includes instructions and the formulas used for each method.

iSpin Toolkit also includes a reference section that discusses TPI basics and other topics, plus instructions for all the tools.

Written by Michael Golden, author of KnitGauge and iKnit NeedleSizer iPhone apps. Feel free to email him (address available in the app or from his web site shown below.)

Look for the youtube video demo coming soon!

iPhone Screenshots

iPhone Screenshot 1
iPhone Screenshot 2
iPhone Screenshot 3
iPhone Screenshot 4
iPhone Screenshot 5

Customer Reviews

The perfect companion to my spinning wheel!

This app is the most valuable app I own, and I have an iPhone and an iPad, and build web sites for a living. I own dozens of paid apps and many more free ones. But this app is my favorite, hands down!

My obsession with yarn and spinning (and knitting, weaving, sewing, and textile arts in general) has been my boon companion all my life, and this app feeds my habit(s) generously. It's an invaluable reference - comprehensive and accurate. It's PACKED with useful mini-apps and reference material, and I can't even begin to tell you how often I use it - several times a day, at least.

Thank you so, so much for creating such an incredible app. I wish all apps met your standards for usefulness and quality. My only ask is that you please make a dedicated iPad version, able to take advantage of the extra screen real estate and UX options. But even if I never get my iPad app, I will still be totally and completely satisfied with my purchase.

Thank you thank you thank you!!!

A dedicated spinner,
Kelly ("SheepFetish" on Ravelry and Twitter)

Too glitchy/unreliable

I really wanted to like this app. As anew spinner, I loved the idea of being able to put in a desired finished yarn and having it help me figure out how much fiber I needed and what wpi to make the singles. I started this for a project and quickly realized that it was off. Way off. Like more than 20 oz off. Then when you open it on an iPad, the ruler just stretches out. Maybe if these glitches ever get fixed it could be a great resource. Until then, don't waste your time and money.

Don't spend your money on this app.

The concept for this app is wonderful. However the app itself does not work in its full capacity. Using the twist per inch, the warp per inch and the angle works wonderfully. However, the calculator crashes the program every time you trying go into it. Also the ruler only gets bigger it does not get larger in rule size. I wish I had read the other reviews before I download the program I would've never purchased it.

iSpin Toolkit
View in iTunes
  • $4.99
  • Category: Utilities
  • Released:
  • Version: 1.0.0
  • Size: 1.7 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 3.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version: