Northwood House uses 3D Printing for restoration work

By Prior George – Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=37062508

Northwood House is located in Northwood Park, Cowes on the Isle of Wight, and the original building dates back to 1799.

As part of a recent restoration project of the 1838 Rotunda, the Northwood House Team have also found time to carry out work on small interior details that have deteriorated over 200 years.

Working with Dan Sandles to 3D scan surviving examples and recreate exact copies using 3D Printing. Pieces included strips of wall edging, picture frame moldings and some corner rosettes.

Many of the skills to make these peices have been lost, and would be far too expensive to recreate today.

For more on the restoration take a look at northwoodhouse.org.

Drone footage of the Rotunda restoration at Northwood House

find out how 3D printing is being used elsewhere check out our list of applications for 3D printing.

Model of the Day

Flexi Dolphin by robotic_arm

Flexi Dolphin by robotic_arm is licensed under the Creative Commons – Attribution – Share Alike license, Published on October 17, 2019.

Flexi Dolphin by robotic_arm is licensed under the Creative Commons – Attribution – Share Alike license, Published on October 17, 2019.

Printed with silver PLA .2mm layer height and 20% infill.

Available HERE.

Model of the Day

GEARSHIFT KEYCHAIN KEYRING by CASTALIA

GEARSHIFT KEYCHAIN KEYRING by CASTALIAM, Published on October 15, 2019 www.thingiverse.com/thing:3917199, Creative Commons – Attribution – Non-Commercial – No Derivatives

GEARSHIFT KEYCHAIN KEYRING by CASTALIAM, Published on October 15, 2019 www.thingiverse.com/thing:3917199, Creative Commons – Attribution – Non-Commercial – No Derivatives

  • Body printed in Silver PLA at 0.35mm layer height.
  • Pin/Stick in Fiberlogy Black PETG at 0.2mm layer height.
  • Knob in Prusament Orange PETG at 0.2mm layer height.

Available HERE.

Jack

Fiberlogy PETG Black Review

Fiberlogy PETG Black:

Fiberlogy Filament
Fiberlogy Filament

Established and operating in Poland, Fiberlogy uses German machines and high quality raw materials, producing materials with a diameter tolerance of +/- 0.02mm and oval tolerance of +0.01mm. You can find out more about them here.

Fiberlogy PETG and comes supplied vacuumed sealed with a clay sachet in a windowed box.

Fiberlogy Filament Vacuum Sealed
Fiberlogy Filament Vacuum Sealed

The box is stamped with a serial number including the date of 21/12/2018, assuming this is around the date of manufacturing would make it less than 12 months old.

The black PETG has a satin like appearance and the filament has a slight texture.

Fiberlogy Filament on fixed spool
Fiberlogy Filament on fixed spool

Pre-wound on a rather different looking fixed spool, it is also available as a “re-fill” for a lower price.

The re-fill can be loaded onto a “masterspool” available here. (Check sizes).

Fiberlogy PETG Specification Overview:

  • Normative Diameter: 1,750 mm
  • Real average diameter: 1.753
  • Net weight: 0,85 kg
  • Printing temperature: 230°C – 250°C
  • Bed Temp: 90°C
  • Diameter tolerance: +/- 0,02 mm
  • Real average roundness: + 0,009 mm

Technical Data Sheet PDF

Material Safety Data Sheet PDF

TIP

Calculating spool weight
Calculating spool weight

Before loading the filament for the first time, weigh the loaded spool (1.175Kg) and subtracted the filament weight of (850g) to get the spool weight of (325g).

This is can useful for calculating the remaining filament weight for future prints.

Test:

As with all new filaments i confirm the real diameter with a caliper at 4 points over the first couple of meters.

The result was( 1.74+1.76+1.75+1.74)/4= 1.7475mm Average real diameter.

You can use this to create a new filament profile in your favorite slicer and adjust the filament diameter to suit.

To benchmark all new filaments i print a calibration cube and a benchy.

The calibration cube is a quick and simple print to establish any basic problems that may present themselves later.

 20mm XYZ Calibration Cube by sjdennis
Published on May 24, 2016
www.thingiverse.com/thing:1586206
Creative Commons - Attribution
20mm XYZ Calibration Cube by sjdennis
Published on May 24, 2016
www.thingiverse.com/thing:1586206
Creative Commons – Attribution

Moving on to the Benchy, it preformed very well with good layer adhesion, bridging and only some slight stringing. Both where printed with 0.2mm layer height on a Prusa i3 MK2.5S.

 #3DBenchy - The jolly 3D printing torture-test by CreativeTools.se by CreativeTools
Published on April 9, 2015
www.thingiverse.com/thing:763622
Creative Commons - Attribution - No Derivatives
#3DBenchy – The jolly 3D printing torture-test by CreativeTools.se by CreativeTools
Published on April 9, 2015
www.thingiverse.com/thing:763622
Creative Commons – Attribution – No Derivatives
 #3DBenchy - The jolly 3D printing torture-test by CreativeTools.se by CreativeTools
Published on April 9, 2015
www.thingiverse.com/thing:763622
Creative Commons - Attribution - No Derivatives
#3DBenchy – The jolly 3D printing torture-test by CreativeTools.se by CreativeTools
Published on April 9, 2015
www.thingiverse.com/thing:763622
Creative Commons – Attribution – No Derivatives

After the successful calibration prints of the Fiberlogy PETG, i got down to business with printing some parts for a Colido bowden conversion. This included a j-head hotend carriage and extruder which can be seen below.

Verdict:

I had a great first experience with Fiberlogy PETG, producing high quality strong functional prints.

I do like that Fiberlogy offer these filaments as a “re-fill” to reduce the waste produced from spent spools and save money at the same time!

Where to buy Fiberlogy PETG:

Fiberlogy PET-G Black 850g is available from but not limited to the following:

shop.3dfilaprint.com £26.10 inc VAT, FREE UK delivery and a filament storage bag. I also received a free 10M sample of black Alloy 910 HDT by taulman 3D, very nice.

aes3d.co.uk £33.96 and FREE UK Mainland delivery.

If you opt for the refill, it can be loaded onto the “Master spool” available here, which could be then used to load already spent spools?

More on PETG:

The PETG filament is a copolymer, basically Polyethylene terephthalate (PET) what is used in plastic bottles, modified with glycol(G).

Benefits:

  • High durability
  • Low shrinkage
  • Resistance to acids, salts, alkaline substances
  • Strong layer adhesion
  • Weather Resistant
  • *Food safe

*Check with manufacture. See technical data sheet PDF above.

PETG offers many of the benefits of ABS such as strength and heat resistance without many of the drawbacks, including printing difficulty and odour.

PETG is hygroscopic which means it will absorb water. To preserve the filaments lifespan and quality it should be stored in a cool dry place, ideally in sealed environment.

Printing small parts in the center of the bed may lead to bed thermal runaway. This is something i experienced when printing these shelf pins on a Prusa MK2.5S. I resolved this by printing more at once and positioning them away from the center. You can find out more about this at Prusa3d.com.

For even more on PETG filament check out Thomas Sanladerer’s excellent video below.

Looking for something different? See our list of currently available filaments here.

3D Printer enclosure: Photo Tent

A cheap, quick and simple solution for a 3D printer enclosure.

Also referred to as a photo/light, studio/tents, they are primarily used for product photography. The purpose of the tent is to diffuse the light through the nylon material removing shadows and reflections.

This tent environment can also serve as an breathable enclosure for your 3D printer!

Photo tents are readily available in a range of sizes and can be found for under £20. Many have a “pop-up” design making them very simple and quick to use, as can be seen above this one also came with a detachable door with a camera slit (see an alternative use for this below).

Benefits of using a tent enclosure

  • Inexpensive
  • Quick and simple setup, easy to store when not required
  • Help stabilize temperature and minimize drafts, a factor to consider if using high temperature filaments such as ABS or ASA
  • This can remove the need for print skirts/wraps
  • Saves energy
  • Reduces smell and ultra fine particles (UFP), further improved when combined with a filter or extraction system. See here
  • Prevent debris entering the print area, see above!
  • Improve safety by enclosing hot and moving parts from children and pets
  • Keeps out dust

Using a photo tent enclosure

Getting started

Before you start check the dimensions of your printer against the tent to be used. As you can see above the Prusa i3 MK2.5s fits perfectly in a 60x60x60 tent.

Place the printer in the tent and ensure there is sufficient distance between any moving, hot parts and the tent material. Connect power and USB if required, load a filament and power on. Moving all axis’s to their limit confirms clearance.

Camera door extractor setup

This tent featured a detachable front with a camera slit. I used the camera slit on the front door to insert an extractor duct. This helps to create a negative air pressure, drawing air through the breathable tent material and extracting to outside. A suitable HEPA/Carbon filter could also be used here.

Now its ready to print!

The display and control knob are easily accessible by lifting the bottom part of the detachable door, to start or make an adjustment during printing.

The test

To trial the tent i set up a benchy print in ABS and monitored the temperatures with an in/out thermometer. The outside probe was inserted in a handy elastic loop at the top.

During the approximately 1 hour print the inside maintained a steady 29 degrees celcious with a room temperature of 20 degrees celcious.

#3DBenchy – The jolly 3D printing torture-test by CreativeTools.se by CreativeTools
Published on April 9, 2015
www.thingiverse.com/thing:763622
Creative Commons – Attribution – No Derivatives

Verdict

Minimal odour was noticed whilst being in the room during printing and the Benchy came out with good layer adhesion and no warping.

The photo tent worked out as a great cheap and quick way to enclose a 3D Printer and improve the chances of a successful print.

The bonus of easily inserting an extractor duct through the camera slit was nice, and its original purpose is great for sharing photos of your prints!

My overall Verdict of the Phot-r photo tent is that it offers great value for money for the two uses it for fills. This basic tent may not be suitable if you are a professional photographer the creases in the nylon material and folded backdrops are noticeable and still present after several day of being setup. However it did a good job of improving the photos i took.

Cloth Vase by Sashko
Published on March 26, 2017
www.thingiverse.com/thing:2203039
Creative Commons – Attribution – Share Alike
Printed in 3D FilaPrint Fluorescent Orange PLA

Final thoughts

A photo tent is a great option if you are on a budget and do not have time to build a custom enclosure however there are a few considerations to take account off.

As the tent is not being used for its intended purpose its should NOT BE LEFT UNATTENDED with an operating or heating/cooling 3D printer inside. The tent material could pose a FIRE RISK.

Further more the breathable nature of the tent will limit the internal temperatures that can be reach, and is more affected by ambient temperatures.

However this means the psu and control board should be happy being left inside. If extended high temperatures are reached these components should be relocated to outside.

As might be expected there was little if any reduction in noise.

Where to get it

The Phot-R tent featured above is the 60x60x60 collapsible version available from amazon *HERE for £16.95.

Similar enclosure options

Grow Tent

Growing on the photo tent enclosure, another alternative use of an already existing product is a grow tent. Used for growing exotic fruits, herbs, vegetables or seasonal fruits out of season, this option may offer improved thermal and sound insulation over a photo tent and has dedicated vents.

The above 60x60x60 grow tent is avaliable *HERE on amazon for £29.95.

Printer designated enclosure

There seems to be little availability of universal 3D printer fabric enclosures. However if you have a LulzBot TAZ or Mini  you are in luck!

The Lulzbot nylon enclosure is listed on digikey.co.uk for £64.74 HERE.

Universal enclosure on Kickstarter

Althought the funding period ended Mar 28 2016, an interesting project for a universal 3D printer enclosure with filter system founded by James Nordstrom can be found HERE. 3DPrintClean filtration systems have a patent-pending recirculating filtration technology  within a fabric enclosure. Offering 600mm squared and 800mm squared and suitable for almost all printers. Kickstarter https://www.kickstarter.com/projects/64537310/3d-printer-lightweight-enclosure-and-filtration-syhttps://www.3dprintclean.com/products