New material for flexy object extrude

by happynew3d, published

New material for flexy object extrude by happynew3d Apr 20, 2013
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For a complete flexy rubber object , Urethane wire can be used to extrude object with better resolution and less trouble. I used 3mm red color, hot end 215° and bed 80°.
Material is food certified !! You can print seal, oring, tracking weels , footprint , piston for air compression, thin flex membrane more and more....
you can find the urethane wire at RS catalog item number 2596480
red and green color. Fast delivery ( italian site has 30% less cost)


same catalogue you can find orange , red, green and transparent urethane 3mm

Share the knowledge ! have fun

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I am using a wades' extruder with a J head nozzle, but am having trouble getting it to extrude consistently. I slows down and eventually stops extruding. I've tried several different temps 190 - 245, maybe I'm extruding too fast or too slow.. The gears just keep pushing it through though. What kind of extruder are you using? Do you have a like to in here on Thingiverse?

I have a wades extruder and hot end as per ebay 281121988525.
Had no problem at all extruding. Please remember that if your last extrusion was with ABS , you need to go high with temperature till all the abs is extruded to clean the extrusion channel than reduce the temperature to the urethane 215°. Hope it helps

Anyone find a reasonably-priced supplier for this stuff? RS, Fenner Drives, Misumi - they're all $35+ for <= 30m. That's 3-4x the price of good PLA.

Doesn't work with the RapMan unfortunately :-(
The material gets compressed and gets stuck immediately between the worm wheel and the extruder base.

It can work with extruder close to the worm wheel only

What would this thread be like in a Bowden tube extruder?

I think it is not working on a bowden extruder as the long delay in push pull as per the soft material. Today I printed a membrane and valve plate at 0.1 resolution and 0,25 total thickness. Works great. I modified my hotbed so could go down to 75° instead 110

Is this more like PLA or ABS? is a hotbed needed?

Yes , hotbed is a must. I first started with 80° but after the first slice , the plastic peel off. So went up to 110° at least for the first two slices. After this you can go down to 50 ° with no problem. This material is soft but slices are quite impossible to disconnect. It is not brittle like PLA , it is soft but very resistent. You can stretch without strap.

This site has a range of colours & sizes (2mm smallest tho)
Not sure what the different Shore ratings will do.

This site has a range of colours & sizes (2mm smallest tho)
Not sure what the different Shore ratings will do.

Yes it seems polyurethane is commonly used for belt. You can find from china supplier . I pointed to RS catalogue for the worldwide and standar availability. may be it is a bit more costly ( not at all) but a really good service. Took me two day to have it at home

From Wikipedia, Shore A values

70 Automotive tire tread
78 Soft wheels of rollerskates and skateboard
70-90 Hydraulic O-ring
98 Hard wheels of rollerskates and skateboard

Good work. Thank you for this :)

£33 for 30m is well out of my price range. looks good though

there are 5mt size for less price. Different color can be lower price

I payed 23 euro + 6 euro shipping. Don't know why but in italian site it cost less. Shipped from Uk anyway....... When you need a flexy object 33£ is not so much.

do you know if it is available anywhere in 1.75mm?

ok today I could see a supplier that had urethane 1.75mm you can ask to: [email protected]

but you could buy another extruder and resize it 1.75. May be new business in progress . You'd be the only one 1.75 producer..

I know there is 2mm. sorry think 1.75 is outranged

Excellent! I think it's awesome that people are branching out on using different materials. I have quite a few projects that could use some flexible/compression parts...thank you for this.

you are welcome!! this material is much better than PLA . Resolution impressed me so much and is faster in cooling. Have fun!

They have 2mm of the same material but its out of stock. If its under tolerance I could print it. :P I sure wish they had 1.75mm

It would be soft enough in the extruder that you might be able to if you set the extrusion multiplier in your slicer...