FAQs

If you have any questions please send us an email at customerdelight@rigid.ink.

Got a question about rigid.ink? We’ve compiled the most common questions we get, and answered them here. If you still can’t see what you’re looking for, please don’t hesitate to ask us.

What does your 60-day guarantee actually mean?

We’re so confident you’ll love your rigid.ink we have a relaxed 60-day returns policy.

If after you’ve adjusted your printer settings (as advised) you’re not happy with the filament for whatever reason, you can send it back.

You could say our returns are about as hassle-free as a nice massage. Almost. Please just email us before you send it back though for instructions.

How fast is your shipping?

Our standard (and free shipping, over £65) is pretty quick. We use a variety of fast couriers depending on what you’ve ordered. We dispatch all orders same working day if ordered before 2:30pm (UK). This means a lot of orders do arrive the next working day.

UK orders only take 1-3 days in most cases. For orders to Europe around 3-5 working days, and orders to USA/rest of world around 4-10 working days. If you really need something guaranteed next-day delivery inside the UK you can opt for this at checkout.

I’m a little confused, should I buy your PLA or ABS?

Short answer: Usually if you’re not sure, you’ll probably just want to go with PLA. Our PLA is significantly stronger than other brands, very easy to print with (heated bed not required) and long lasting. If however you need something a little harder wearing, and your printer has a heated bed – you might want to go for the ABS.

What temperature should I print my rigid.ink?

This varies between materials, so please check the recommendations on the specific product page. Generally, due to the pure nature and high grade of our raw materials your extruder setting wants to be a little lower than normal. For example, our PLA extrudes best at around 180-185°C depending on what printer you’re using. Heated bed is not necessary for our PLA, but you can use one at below 45°C. Our ABS works well from between 230-250°C, with a heated bed of 90C-95°C (no higher!).

Please allow for the fact that some 3d printers currently on the market don’t actually have very accurate thermostat readings and so some degree of adjustment is nearly always needed to get the best results when trying a new brand of filament. Different printers print rigid.ink best at different settings, so don’t be afraid to experiment.

I don’t have a heated bed, is this a problem?

With PLA, no. All other materials (including Flex PLA) require a heated bed to avoid warping during those first few layers.

Do we need to use blue tape / hairspray?

Not often. You’ll find your rigid.ink sticks well to most build surfaces. If printing direct to glass, your best bet would be to use a good quality glue stick and a apply a thin even layer to your bed before printing. If this doesn’t work, try blue painters tape, Kapton tape or hairspray.

My 3D printer manufacture recommends only using their filament – can I use rigid.ink?

Short answer: Absolutely! As long as your printer does not have an E-PROM chip, rigid.ink will work with any 1.75, 2.85 and 3.0mm FDM and FFF 3D printer. You’ll know if your printer uses sneaky E-PROM chips because it magically knows how much filament you have left and if you’ve changed the cartridge.

You will find rigid.ink outperforms your printer manufacture’s “recommended” filament (we promise, or your money back) and costs a fraction of the price.

Will your spools fit my printer?

Most likely, as our 1KG spools are fairly normally sized. The exact dimensions are: 20cm total diameter, 7.5cm wide and 5.5cm inner hole diameter.

Need an adaptor to fit your spool holder? You can find the file, designed by one of our lovely customer’s here: http://www.thingiverse.com/thing:1052160

I want to use rigid.ink in my 3D Pen – will it work?

Yes, but please take note to buy the right size for your 3D Pen. You will likely want to use PLA instead of ABS when using a pen. Also if you’re using your rigid.ink and it was near the end of a spool, it might be slightly more tightly coiled. If this is causing problems with your pen, simply heat up the filament a little to straighten it out enough to feed it freely into your pen.

I’m looking for 3.0mm filament, will your 2.85mm diameter fit?

Absolutely; we phased out the 3.0mm size in favour of the new 2.85mm filament. There is no difference when printing our 2.85mm filament through a 3.0mm printer – we just wanted to cater for those with 2.85mm printers also.

My filament printed, but then bubbled?

This is caused by the filament absorbing too much moisture. Contact us to see what we can do for you, also check out the storage instructions below and our article - How to keep your 3D printer filament dry & what to do if it's not

What’s the best way to handle and store rigid.ink?

3D printer filaments in general are sensitive to water absorption, especially PLA. To keep your rigid.ink fresh for longer, keep it sealed with the desiccant in the zip-lock bag provided. rigid.ink is best kept in a cool try area, away from direct sunlight.

Will you be stocking wood or metal filaments soon?

Not at the moment we're afraid, although we do offer silver and gold metallic effect filaments in both ABS and PLA.

How does your loyalty program work?

When you checkout and complete your order, you'll be given an option to create a customer account (once order is complete) - you'll also get a 250 point bonus for doing so. After enough points have accumulated, you can claim back rewards of up to £20 per order. One discount code per order.

You will receive 5 points for every £1 spent.

These vouchers will be emailed to you, and take the ex VAT price off. If you pay VAT, it will be represented as a round figure deduction (eg. £5 off the total) but if you're a EU business or RoW customer, the checkout will deduct the VAT element for you, your voucher will represent the ex VAT amount (e.g less 20%, or £4.17).

Home / Collections / All Sample Packs / 3D Filament TPU (flexible) 1.75mm Testing Pack

3D Filament TPU (flexible) 1.75mm Testing Pack

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PLEASE NOTE: Sadly, we've stopped supplying filaments. After much consideration we've chosen to recommend the following supplier as an alternative.

Here's why:

Excellent dedication to customer service, quality & range of materials.
Very competitive pricing & UK based.
High reward customer loyalty plan.
FREE UK delivery on all orders.

Click Here To See Their Range Of Filaments Click Here To See Their Range Of Filaments

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Here at rigid.ink, we understand how important filament testing is.

This is why we have created our TPU testing pack, containing 6 samples for testing.

You will receive 6 x 10m samples in 1.75mm.

You may receive two of the same colour as some colours are now out of stock..

You'll save over £2 compared to buying the samples individually. Easier and cheaper - what could be better!?

It is also important to clean your nozzle regularly (often done between using different materials), we would suggest using FLOSS™ cleaning filament.

Click here to compare filaments.

We do not hold Food Safety Certificates.Some of the raw materials used to produce our filaments are food safe accordingly to European regulations, but our filament in it's final form is not officially approved. Neither is the 3D printing process and all the components of 3D printers.

Still not sure if Rigid.ink is for you? Contact us or check out our FAQs page.

Guide Settings
Printing Temperature: 210-240°C
Bed Temperature: 20-70°C
Bed Adhesion: Glue-stick, 3DLAC, Vinyl hairspray. Increase the air-gap between nozzle for the first layer and the bed. Be especially careful with FR4, PEI and BuildTak.
Print Speed: 15mm/s or below
Cooling Fans: 30-60% after 1st layer, or as needed
Retraction: Increase more for flexible materials

Good ventilation is essential and do not leave print unattended.

Information
Density: 1.21g/cc
Tensile Strength: 5,801 psi (40MPa)
Sample Weight: Approx 35g
Empty Spool + Filament Weight: Approx 250g + 1KG = Approx 1.25KG
1KG Spool size: 20cm dia, 7cm width, 5.6cm dia spool hole

Please note: settings vary printer to printer so experimenting is essential
The 6 Best Flexible 3D Printer Filament Companies - Complete Review

What is the difference between TPE and TPU Flexible Filament?

Help Center - Flexible PLA vs TPU Summary

Compare All Filaments

For specific 3D printing help, please complete our 3D Printing Help Form.

We do not hold Food Safety Certificates. Some of the raw materials used to produce our filaments are food safe accordingly to European regulations, but our filament in it's final form is not officially approved. Neither is the 3D printing process and all the components of 3D printers.

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Don't leave money on the table...

Start collecting points worth at least 2.5%* cashback today. You might even have points from past orders you can still claim.

Look at all the ways you can pick up points and get your rewards below.

* - Our VIP customers get a rewarding 5% cashback.

How do I get points?

You can stack up rigid.ink Reward points by doing any of the following stuff - most of which you'd likely do anyway. And with our surprise bonuses, your points will soon add up! Make sure you complete the actions through the 'Earn Rewards' tab inside your rigid.ink account though.

You'll need an account though. Don't have one? Get 250 bonus points if you sign up today!

Get My Account & 250 Points

Already Got an Account? Click Here to View Points!

Order on Our Website

You get 5 points for every £1 spent. VIPs get 10 points for every £1 spent.

Write an Honest Review

Let others know what you think to rigid.ink

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They'll get £5 off their first order. And you'll get £5 worth of points.

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Love rigid.ink & want to get the word out? We'll reward you for your time...

What can I use my points for?

Once you've earned points, you can redeem them for voucher codes so you can get:

FREE rigid.ink Filament

Get voucher codes you can spend on rigid.ink filament. Your points are worth solid money off your orders.

FREE UK or EU Shipping

Fancy FREE UK or even EU shipping off your orders? Make big savings on shipping costs.

*How do I become VIP?

Join the VIP club...

Once you've earned a total of 1500 points (not balance - you can still spend them all) in a 12 month period, you'll be automatically upgraded to our extra special VIP club tier. Here, you'll enjoy perks - most notable you'll receive an additional 2.5% on your points.

This means you'll receive a total of 5% cashback on your rigid.ink purchases, as an extra thank you to our most loyal customers.

How do I redeem my points?

To view your balance, redeem points and see what you're eligable for, just login to your account and click on 'Loyalty Points'. Select the 'Rewards' tab to choose and claim your rewards to get money off or FREE shipping on your next order!

Get My Account & 250 Points

Already Got an Account? Click Here to View Points!

Don't leave money on the table...

How do I get points?

Get My Account & 250 Points

Order on Our Website

You get 5 points for every £1 spent. VIPs get 10 points for every £1 spent.

Write an Honest Review

Let others know what you think to rigid.ink

Recommend a Friend

They'll get £5 off their first order. And you'll get £5 worth of points.

Share on Social Media

Love rigid.ink & want to get the word out? We'll reward you for your time...

What can I use my points for?

Once you've earned points, you can redeem them for voucher codes so you can get:

FREE rigid.ink Filament

Get voucher codes you can spend on rigid.ink filament. Your points are worth solid money off your orders.

FREE UK or EU Shipping

Fancy FREE UK or even EU shipping off your orders? Make big savings on shipping costs.

*How do I become VIP?

Join the VIP club...

How do I redeem my points?

Log in to your account & click "Loyalty Points"

Here you'll be able to view your balance and redeem your points for vouchers to use for money off or FREE shipping on your orders. Click the 'Rewards' tab to see the current rewards you're eligible for!

Get My Account & 250 Points