Go Back  Quiltingboard Forums > Main
HST Math Question.... >

HST Math Question....

HST Math Question....

Thread Tools
 
Old 04-30-2020, 09:36 AM
  #1  
Super Member
Thread Starter
 
Watson's Avatar
 
Join Date: Dec 2015
Location: Ontario, Canada
Posts: 4,349
Default HST Math Question....

If the pattern says to cut the HST'S 4 7/8's, but I want to do them the 4 at a time method, what size do I cut the squares?

Also, if it says 2 7/8"s, what size do I cut the squares?

I've been staring at this tutorial for a very long time and I can't figure it out.

Thanks, Watson
Watson is offline  
Old 04-30-2020, 10:23 AM
  #2  
Super Member
 
Join Date: Aug 2018
Location: Greater Peoria, IL -- just moved!
Posts: 6,081
Default

It's easier for me to figure out different methods if I know what the finished size is -- would that be for finished 4" and 2" squares?

edit: Maybe the chart at the bottom of this site will help
http://www.inquiringquilter.com/easy...four-at-a-time

Last edited by Iceblossom; 04-30-2020 at 10:25 AM.
Iceblossom is offline  
Old 04-30-2020, 10:43 AM
  #3  
Super Member
Thread Starter
 
Watson's Avatar
 
Join Date: Dec 2015
Location: Ontario, Canada
Posts: 4,349
Default

I don't know, IceBlossom. That's not mentioned in the pattern. Part of the problem.

Watson
Watson is offline  
Old 04-30-2020, 10:58 AM
  #4  
Super Member
 
Join Date: Aug 2018
Location: Greater Peoria, IL -- just moved!
Posts: 6,081
Default

Do you have a picture of the block or finished size or is it a mystery?

Ok, so the old math to figuring out a triangle is finished plus 7/8ths. That was my guess on why the blocks would finish at 4" and 2".

Are you making one or two sets out of that, that is are you sewing once along the diagonal, and cutting off a smaller bit, or are you cutting the squares in half, meaning you would sew two equal sets.

Is this a pattern where it is exact, or will you be cutting down? There are tiny differences between the reality sometimes when we are using the diagonal measurement or the horizontal measurement as our standard. So I would cut both oversized and trim down myself.
Iceblossom is offline  
Old 04-30-2020, 11:31 AM
  #5  
Power Poster
 
Join Date: May 2008
Location: MN
Posts: 24,419
Default

Unless you want bias edges on your HST units - I would avoid that method like the plague.
bearisgray is offline  
Old 04-30-2020, 11:34 AM
  #6  
Power Poster
 
Join Date: May 2008
Location: MN
Posts: 24,419
Default

I would also cut oversized and trim down.
bearisgray is offline  
Old 04-30-2020, 01:11 PM
  #7  
Super Member
 
EasyPeezy's Avatar
 
Join Date: Mar 2010
Location: Canada
Posts: 3,457
Default

If the pattern says to cut 4 7/8" squares it will finish as 4" square
(with no margin of error).
When I make HST's I just round off to the next digit. In this case I
would cut 5" square. Sew 1/4" on each side of the diagonal, cut,
press and trim to 4.5" square. After sewing it should finish at 4" square.
If you want to make 8 HST's at a time then you just double the measurement.
Cut your square 10" square. There are charts that are more skimpy or more
generous. Try different ones and see what you like.
I agree with Bearisgray. Avoid those bias edges.
You can check here for a good tutorial and a chart.
If you only need 4 HST's then you do half of it. You will start
with a rectangle that's 5" x 10". But I would suggest you start
with 8 first to know how this works.
https://www.generations-quilt-patter....html#Download






Last edited by EasyPeezy; 04-30-2020 at 01:13 PM.
EasyPeezy is offline  
Old 04-30-2020, 03:10 PM
  #8  
Power Poster
 
dunster's Avatar
 
Join Date: Mar 2009
Location: Lake Elsinore, CA
Posts: 15,145
Default

Originally Posted by bearisgray View Post
Unless you want bias edges on your HST units - I would avoid that method like the plague.
I agree. The 4-at-a-time method where you sew all around the edges of the square results in lots of bias edges. And you still have to trim to get the size you want.
dunster is offline  
Old 04-30-2020, 04:32 PM
  #9  
Super Member
 
Fabric Galore's Avatar
 
Join Date: Jan 2011
Location: Central FL
Posts: 1,478
Default

Easy Peezy - thank for the website to cut 8 HST at one time. Neat idea and new to me. I normally use my Eleanor Burns ruler for HST.
Fabric Galore is offline  
Old 04-30-2020, 04:39 PM
  #10  
Super Member
 
Join Date: Apr 2007
Location: Alturas, CA
Posts: 9,393
Default

Although I don't like the 8 at a time system, I have the "theory" in my folders and it says to:

Start with two squares that are 1 3/4″ larger than the finished size times two.

I've never tried it, so can't say it works. If I wanted a 4 1/2" unfinished hst, I would cut squares at 5 1/2".
pocoellie is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



FREE Quilting Newsletter