Blanket set: Sunburst Granny Square Generator

Plan a four-block set from two constructions

This blanket-set study uses two block types arranged diagonally in a two-by-two layout. Type A has an eight-repeat center and four square rounds; Type B has a sixteen-repeat center and two square rounds. Both end with seventy-two posts and two-chain corners. The objective is to plan matched edge counts while retaining different center scales. It is a small construction and assembly study, not a physically tested full blanket.

Prepare compatible materials and records

Choose shades from the same smooth DK cotton range and begin with a four-millimeter trial hook. Use blue, gold and coral for the center rounds and green for all outer frames. Repeat green in every remaining palette slot rather than letting the color cycle return unexpectedly to a center shade. Keep scissors, a tapestry needle, eight corner markers for a trial pair and a ruler. Save both complete design records before making repeated blocks.

Specify the two block types

Type A uses eight repeats, three puff loops, three cluster partial posts, one spacing chain, two corner chains and four square rounds. Type B uses sixteen repeats, two puff loops, three cluster partial posts, one spacing chain, two corner chains and two square rounds. Make two of each after measuring the first trial pair. Place A at the upper left and lower right, and B at the upper right and lower left.

Complete record and source diagram

Download the exact primary JSON into the Sunburst Granny Square Generator.

1. Magic ring: ch2 (not counted),8 dc; sl st to first dc. Tighten ring. Count 8 completed units; chains separate.
2. Join puff color. In each dc make one puff:[yarn over, insert and draw up a loop] 3 times; yarn over and pull through all7 loops; ch1 to secure, then ch1 for spacing. Join to first puff. 8 puffs and8 spacing arches. Count 8 completed units; chains separate.
3. In each spacing arch work one 3-dc cluster, ch2. Cluster:[yarn over, insert, draw up a loop, yarn over and pull through2] 3 times; yarn over and pull through all4 loops. Join to first cluster. 8 clusters and8 ch-2 spaces. Count 8 completed units; chains separate.
4. Join in a ch-2 space; ch2 (not counted). Repeat four sectors:[3 dc, ch2,3 dc] in corner space; 3 dc in next space. Sl st to first actual stitch. 36 counted posts and8 corner chains. Count 36 completed units; chains separate.
5. Join in corner space; ch2 (not counted). In each corner work(3 dc, ch2,3 dc). Between corners work3 dc in each of the2 group gaps. Sl st to first dc. 48 dc and8 corner chains. Count 48 completed units; chains separate.
6. Join in corner space; ch2 (not counted). In each corner work(3 dc, ch2,3 dc). Between corners work3 dc in each of the3 group gaps. Sl st to first dc. 60 dc and8 corner chains. Count 60 completed units; chains separate.
7. Join in corner space; ch2 (not counted). In each corner work(3 dc, ch2,3 dc). Between corners work3 dc in each of the4 group gaps. Sl st to first dc. 72 dc and8 corner chains. Count 72 completed units; chains separate.

Complete companion motif

Download the separate companion JSON. Center repeats 16; puff loops 2; cluster posts 3; puff spacing 1; corner chains 2; square rounds 2.

1. Magic ring: ch2 (not counted),16 dc; sl st to first dc. Tighten ring. Count 16.
2. Join puff color. In each dc make one puff:[yarn over, insert and draw up a loop] 2 times; yarn over and pull through all5 loops; ch1 to secure, then ch1 for spacing. Join to first puff. 16 puffs and16 spacing arches. Count 16.
3. In each spacing arch work one 3-dc cluster, ch2. Cluster:[yarn over, insert, draw up a loop, yarn over and pull through2] 3 times; yarn over and pull through all4 loops. Join to first cluster. 16 clusters and16 ch-2 spaces. Count 16.
4. Join in a ch-2 space; ch3 (not counted). Repeat four sectors:[3 tr, ch2,3 tr] in corner space; 3 dc in next space,3 hdc in next,3 dc in next. Sl st to first actual stitch. 60 counted posts and8 corner chains. Count 60.
5. Join in corner space; ch2 (not counted). In each corner work(3 dc, ch2,3 dc). Between corners work3 dc in each of the4 group gaps. Sl st to first dc. 72 dc and8 corner chains. Count 72.

Check the different growth histories

Type A has completed-unit counts eight, eight, eight, thirty-six, forty-eight, sixty and seventy-two, totaling 240 per block. Type B has sixteen, sixteen, sixteen, sixty and seventy-two, totaling 180. Two of each therefore require 840 completed units before any joining operations. Their last rounds agree even though the number of center repeats and working rounds differs. The chart and written sequence must remain attached to the correct block label.

Count the intended joining edges

Each final side between corner spaces contains three corner-leg posts, four three-post side groups and three posts from the next corner leg: eighteen positions. Four sides account for all seventy-two posts. A two-by-two assembly has four internal block-edge seams, two in each direction. Pairing all eighteen post tops along each gives seventy-two paired seam positions in total. The center where four corners meet is an endpoint junction, not another row of eighteen posts.

Measure and trial the seam first

Wash an A/B pair and compare relaxed side length, corner angle and the two-chain openings. If they match without pulling, try a consistent whipstitch seam through corresponding selected loops along eighteen post pairs, with secure endpoints at the corner spaces. Keep the unused outer edges free for a separately designed perimeter. If measured sizes differ, adjust the material trial or revise the construction deliberately instead of forcing a match through uneven seam tension.

Finish the set and keep budgets separate

After the trial pair succeeds, make the remaining two blocks and check the central four-corner junction before weaving ends. Joining yarn and any blanket border need their own measurements; the 840-unit total does not predict meters. Is the layout's centimeter size established? Measure the actual blocks and seams. Does this JSON generate a finished assembled blanket automatically? Each download is one block type with complete instructions; the assembly plan is given here. No physical sample or blanket performance is claimed. Use the joining guide before expanding this set into a larger project.