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Holleis’ 3D Printed Pista

Posted: November 19th, 2013 | Author: | Filed under: On Two Wheels, On Your Bike | Tags: , , , , , | Comments Off on Holleis’ 3D Printed Pista

Ralf Holleis’ 3D Printed Pista

I ride a Pista, and for a long time I’ve thought it – my chrome-moly limited edition Bianchi – the most perfect Pista ever built, aesthetically and trackside.  German übergestalter Ralf Holleis has just broken my dream, creating the above stunning super lightweight track bike, the VRZ 2 BELT, resplendent with 3D – lasercused – printed titanium lugs ::::

Holleis’ VRZ 2 sheds light on just how much work goes into creating a flawless 3D printed product. Check the video above. Holleis’ process isn’t the most straightforward, but it’s superneat for creating custom frames in a relatively short time.

Holleis’ 3D Printed Pista


[…for Simon Markhot‘s superlative HiRes images check:]

Regardless of whether you would want to tackle a project like this on your own, it’s worth taking the time to watch the video below to see just how much work goes into many of the 3D-printed projects that continue to make the rounds online.

Ralf Holleis’ 3D Printed Pista

Ralf Holleis’ 3D Printed Pista

[…for Simon Markhot‘s superlative HiRes images check:]

Anyone interested in replicating this process can change the bike’s geometry to suit their own specs,  generating your own unique lugs is totally dependant on software, neat huh? The pieces are produced via process called laserCusing, and then the printed parts are finished and bonded to the tubes.

Holleis' 3D Printed Pista Parts - LaserCusing

WTF is LaserCusing? LaserCusing technology was developed specifically for the mould making. Components produced by LaserCusing can be used without any restrictions in moulds for plastic processing and light metal die-casting. Any conventional finishing method such as milling, turning, grinding, polishing, coating or nitride surface hardening can be applied to parts made by LaserCusing.

LaserCusing is sometimes confused with direct metal laser sintering technology – DMLS, however, there are huge differences that make LaserCusing suitable for applications in mass production. More on laserCusing?

Silver on Black Ralf holleis Pista

Disregarding my obvious penchant for Fixed Gear Pista’s, as an object, 3d printer or not, Holleis’ creation ticks all the boxes. It uses a solidly lightweight titanium-alloy in the printed parts, glued to ultralight, dry-carbon tubes to finish off the structure. Lightweight components like wheels, a THM crankset, propelled by a noiseless belt drive, this cycle is stunning.

All up, Holleis’ VRZ weighs in at just 4.9 kg/10lb, making it a serious track contender. The above incarnation – silver on black – is by far my favourite finish.

However, on the street I’d most likely stick with my Bianchi, there’s no question Holleis’ 3d printed VRZ would win the unofficial “Best back in the rack,” contest at my local watering hole, but the chain I’d need to keep it mine would weigh more than the bike.

VRZ 2 BELT Specs:

  • Tubematerial: carbon
  • Lugmaterial: titanium (laser-cusing)
  • Lugcoating: TIN, CRN, or TiCN+C
  • Handlebar: Deda Pista
  • Saddle: AX Lightness
  • Seatpost: Vorwaertz TI+C 1
  • Steam: Vorwaertz Top 2
  • Crankset: THM CLAVICULA (GATES carbon belt)
  • Wheels: Lightwieght RUNDKURS
  • Tires: Conti 4000s
  • Total weight: 4,9kg

Coating via EITEC
Wheelset via LIGHTWIGHT
Crank via THM
Belt via GATES

Get Social: @RalfHolleis Facebook, Pinterest, G plus, Youtube, Vimeo




[…my fixey, more Bianchi’s: ]

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source: ralfholleis
source: cleantechnica
source: lasercrusing
source: gas2

image source: simon markhot
image source: marcus dangerfield

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