Guides, from the bench
Written by Sanjeev Shankar Sinha and Alok Kumar, the co-founders of 4Brains Technologies, and each one is tied to a tool it can be checked against. No filler, no affiliate links, and every one ends with a checklist or a short summary you can work from. How they are written and checked.
Method · Background Remover
Product photos on white: full-size cut-outs, and where they fail
What full resolution means in a cut-out, how one becomes a square listing image on pure white, and three measured tests of where automatic cut-outs go wrong.
· 9 min read
Reference · QR Studio
How big does a QR code need to be to scan?
The real answer is module width, not code width: where the distance-divided-by-ten rule comes from, when it breaks, and minimum print sizes in millimetres.
· 11 min read
Reference · QR Studio
QR codes for a printed menu that do not stop working
Why a dynamic QR code can kill 200 printed table tents at once, when it is still the right choice, and how to print one that nobody can switch off.
· 11 min read
Reference · QR Studio
Which barcode symbology you actually need
The map through EAN-13, UPC-A, Code 128, ITF-14, Data Matrix and the rest: what each one is actually for, and why a retail number has to come from GS1.
· 10 min read
Method · QR Studio
UPI QR codes for a small business: what to print and what to check
What a UPI QR code really contains, when to bake in an amount and when not to, and the four-minute check that stops a printed counter code failing at the till.
· 10 min read
Design · 4B Engraver
Engraving a logo into a 3D print without losing the detail
Artwork prep for an engraved logo: the thinnest stroke a 0.4 mm nozzle holds, when to redraw the mark instead of shrinking it, and when paint rescues it.
· 9 min read
Method · WordCloud Studio
How to turn survey answers into a word cloud that actually says something
A practical method for turning hundreds of free-text survey responses into one honest picture, including the cleaning steps most word cloud tutorials skip.
· 9 min read
Design · WordCloud Studio
Word cloud design: choosing shapes, fonts and colour that stay readable
Why most word clouds turn to mush, and the specific choices — silhouette, typeface, palette, density — that keep one legible at poster size and on a phone.
· 11 min read
Workflow · 4B Engraver
How to engrave serial numbers into a batch of 3D prints
Numbering a production run without CAD: where to put the mark, how deep to cut it, and how to keep the digits readable after the first layer lines appear.
· 8 min read