high density plastic Mandrel and Ring Sizer Set from http://www.beadmonster.co.uk

if you make beadwork rings and light wire bead jewellery rings, this set is ideal for shaping and sizing your work

#BeadMonster #Beads #EverythingsBetterWithBeads #FingerRings #ToeRings #Mandrel #RingSizer

Word Search Puzzle 978

Word List : #tailloir #tanguile #sober #gaiter #strad #tuition #holliper #utum #tave #mandrel #misguage #eosaurus #cantinas #finicism #sirloiny #unfelt #outtasks #wahpeton

http://karafinance.com/2024/02/28/word-search-puzzle-978/

I got a tumbler as a gift recently and wanted to make a handle and grip to more easily carry it. This is the first step in that process.

This is an 8 peg #mandrel being #3dprinted on an #ender3pro. The pegs are labeled 2, 3, 4, 6, 2, 6, 4, 3 to act as a guide for tying a 2, 3, 4, or 6 bight #TurksHead #knot. #M4 screws will be used as the pins.

It's ~200mm in height which should allow for as many leads as I'd desire.

#3dprint #3dprinting

Cables Too Long? Try Cable Management Via DIY Coiling

Annoyed by excessively-long cables? Tired of the dull drudgery and ugly results of bunching up the slack and wrapping it with a twist-tie? Suffer no longer, because the solution is to make your own coiled cables!

[Dmitry] is annoyed with long, unruly cables and shared a solution he learned from the DIY keyboards community: coil them yourself with a piece of dowel, a hair dryer, and about 10 minutes of your time. However, it's just a wee bit more complicated than it may seem at first glance.

The process begins with wrapping a cable around a mandrel, then heating it as uniformly as possible to thermoform the jacket, but the instructional video (embedded below) says that all by itself that isn't quite enough to yield lasting results. After heating the cable and letting it cool, the coils will be formed but it will not hold the new shape very well. The finishing touch is to "reverse" the direction of the coils, by re-wrapping it backward around the mandrel, inverting the coils upon themselves. This process is awkward to explain, but much simpler to demonstrate. This video by [DailySetupTech] explains this process around the 2:30 mark. That final step is what yields a tightly-wound, springy coil.

The nice part about using this process as a cable management technique is that it is possible to coil only a portion of a cable, leaving the exact amount of uncoiled slack required for a given application. Keep it in mind the next time some cables need managing. And if you don't want to coil a cable but still need it out of the way, you might find this design for a DIY cable chain made from a tape measure useful.

#howto #cablecoiling #cablemanagement #diy #mandrel #thermoforming

The Ins and Outs of Casting Lenses from Epoxy

If you need a lens for a project, chances are pretty good that you pick up a catalog or look up an optics vendor online and just order something. Practical, no doubt, but pretty unsporting, especially when it's possible to cast custom lenses at home using silicone molds and epoxy resins.

Possible, but not exactly easy, as [Zachary Tong] relates. His journey into custom DIY optics began while looking for ways to make copies of existing mirrors using carbon fiber and resin, using the technique of replication molding. While playing with that, he realized that an inexpensive glass or plastic lens could stand in for the precision-machined metal mandrel which is usually used in this technique. Pretty soon he was using silicone rubber to make two-piece, high-quality molds of lenses, good enough to try a few casting shots with epoxy resin. [Zach] ran into a few problems along the way, like proper resin selection, temperature control, mold release agent compatibility, and even dealing with shrinkage in both the mold material and the resin. But he's had some pretty good results, which he shares in the video below.

[Zach] is clear that this isn't really a tutorial, but rather a summary of the highs and lows he experienced while he was working on these casting methods. It's not his first time casting lenses, of course, and we doubt it'll be his last -- something tells us he won't be able to resist trying this all-liquid lens casting method in his lab.

#mischacks #casting #epoxy #lens #mandrel #mirror #molding #optics #pdms #resin #silicone