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Anet A8

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Tony Bennett14/08/2017 20:24:59
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5080 forum posts
129 photos

well if no one else wants it and you can bring it to the Nats.

I will take it off your hands sir.

Tony B

Ian Jones13/09/2017 20:11:54
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3214 forum posts
1397 photos
Posted by Masher on 14/08/2017 11:11:29:

If anyone is about to buy one of these, mine is going up for sale.

Nothing wrong with it (just bought it for a play), very low use, reel of black PLA included. All built & tested. Pick up only from Hereford, £100 no offers

Wish I needed it, that's an offer hard to refuse.

Pete Collins05/10/2017 10:10:03
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119 forum posts
3 photos

I knew it was too good to last. I haven't done all that much printing - I'm on my second reel of PLA. In the middle of a Major print (estimated at about 20 hours!) the printer stopped! When I checked I found that the voltage trip for my workshop had blown. On investigation, sure enough, it's the printer that's blowing it. It trips out as soon as I plug in. Not had time to investigate further but it doesn't look good.

Anyone else had similar problems?

Pete C

Mark Stringer05/10/2017 10:55:41
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322 forum posts
209 photos
I have got an A8 and it has been fine but they are prone to melt the hotbed plug ... It may be that
Simon Chaddock05/10/2017 16:33:27
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5534 forum posts
2913 photos

Just playing really but I wanted to 'print' an exhaust tube for a 50 mm outrunner EDF.

As with all out runner types the motor creates a 'bluff end' in the thrust tube which to put it mildly is 'poor' aerodynamics.

With an in runner a 'cone' can be added to the motor casing to smooth the airflow.

A static cone is possible with an out runner but it requires at least 3 'vanes' to secure it so there is a real possibility that any benefit from the cone is largely negated by the drag from its supporting vanes.

I wondered if it was possible to make a cone light enough that it could be fixed directly on the end of the out runner without creating significant balance problems.

Using the 'spriralize' option in CURA it is possible to print a fairly complex shape as a single wall item with the added advantage that it is formed in one continuous operation which improves the print quality.

This elliptical cone on a 23 mm diameter out runner bell weighs just 1/2 g!

Motor cone

It has a 6mm hole in the end to allow cooling air to exit.

The matching thrust tube is also a single wall spiralize print and weighs 2g.

Thrust Tube

It has both a parallel and an elliptical taper portions to keep a constant cross section all the way down the thrust tube.

The tube is 'joggled' to locate on the EDF body.

Tube Joggle.jpg I really doubt it will give a significant thrust improvement but "every little helps". wink 2.

Mowerman05/10/2017 19:21:14
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1542 forum posts
105 photos

And it looks good !

Pete Collins05/10/2017 20:11:48
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119 forum posts
3 photos

Re my previous post;

On switching on there is a sharp crack and a blue flash from the middle of the power supply somewhere near the transformer. I suspect I'm going to need a replacement power supply - doesn't look good!

Pete C

Colin Bernard05/10/2017 21:02:16
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483 forum posts
81 photos

A friend of mine had a similar problem with his A8. When I opened up the power supply I found that the soldering was a little suspect to say the least, and there was a short across a regulator leading to a blown fuse on the board.

Replacement of the fuse and regulator, and checking and tidying up all the soldering sorted the issue,

Simon Chaddock06/10/2017 14:06:23
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5534 forum posts
2913 photos

For anybody that has not tried it this video shows the CURA "spiralize" feature in action.

It only prints a single skin hollow structure but it does so as one continuous operation which has benefits in surface finish and time to print both useful features if you want to create a light but complex shape exhaust tube. wink 2

Ian Jones06/10/2017 23:23:33
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3214 forum posts
1397 photos

Great stuff Simon, looking forward to trying it, notied any benefit?

Tim C23/11/2017 15:19:28
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496 forum posts
259 photos

I have an A8 enroute from China, what sources can be recommended for PLA/ABS filament supplies?

Edited By Tim @ ModelMarkings.com on 23/11/2017 15:19:49

Tony Bennett23/11/2017 16:24:18
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5080 forum posts
129 photos

I get mine from ebay.

**LINK**

i expect some one will say i am paying too much for it. wink

Tony B

Simon Chaddock23/11/2017 16:49:43
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5534 forum posts
2913 photos

I get mine from Ebay too.

**LINK**

MaL24/11/2017 11:48:30
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140 forum posts
13 photos

Hobbyking - EU warehouse

Simon Chaddock24/11/2017 12:35:00
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5534 forum posts
2913 photos

One area where 3D printing excels is in duplication. wink 2

These are the 8 individual pieces (2 on the left, 6 on the right) that make up the 2nd nacelle for my Airbus A350. The initial components took quite some trial and error to get right and although this picture represents about 4 hours worth of printing it was all done at the touch of a button (well almost!) and the bits all fit together exactly. Oh joy!

2nd nacelle 1

With very thin (0.3 mm) walls and single layer (0.2 mm) bottom surfaces to save weight it is about at the limit of what my A8 can reliably print so it was important to print everything whilst the machine maintained its physical settings. Even changes in the ambient air temperature made a difference!

Mark Stringer24/11/2017 12:48:28
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322 forum posts
209 photos

I have had all of my filament from Hobby King EU warehouse from their deals / bargain bin offers.

I have only used PLA so far (and mainly the ESUN brand) as i have my printer in the house and ABS would need venting properly.

The CoLiDo ones in cartridges are OK too as they just pop out of the cartridge to use as normal.

They have a lot of Black Friday deals on today and free postage so it will be hard to beat i would have thought!:

Looks like it is selling out quickly though: https://hobbyking.com/en_us/3d-printing-diy/filament/pla.html?p=1&wrh=7%2C1

MaL03/12/2017 19:40:55
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140 forum posts
13 photos

Had a look for some more pla today to replace the stuff I've been using..... only......there's none to be had from the EU warehouse (at least i couldn't find any).. plenty available from China but a 500g reel of pla weighs over 1500 grams when packaged apparently - that pushes it into the £19.56 postage bracket disgust......

Found a 1kg reel on ebay.fr for €13.36 delivered express from a french shop!!! (now theres a turn up for the books!!)

Mark Stringer04/12/2017 10:20:22
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322 forum posts
209 photos

If you do this search https://hobbyking.com/en_us/3d-printing-diy/filament/pla.html?wrh=1%2C7 then scroll down the list there are a few in stock - many of which are in the UK warehouse if that is OK for you?

Many are 500g but there are a few 1kg rolls there too.

These were free shipping for black Friday but that looks to have finished ,..UK postage is usually pretty good for pretty large deliveries though.... just popped 4 x 1kg rolls in my basket and it came to £4.84 by parcel force 48 ... says it is that price up to 30kg so about 25 rolls i would have thought...

Edited By Mark Stringer on 04/12/2017 10:21:10

MaL04/12/2017 13:59:30
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140 forum posts
13 photos

You are right..... there is ONE roll of PLA 1.75 available from the EU warehouse.. I am in France and getting stuff from the UK warehouse is too expensive at $13...a bit on the steep side for $11 worth of goods, not so bad if you order up to the weight limit of 30kg thoughdisgust

Thanks for looking though.. I hope it is just that there was rush to take advantage of the sale offers and normal service will be resumed at some time. I suspect they are phasing out the esun stuff in favour of their own brand..not that there is anything wrong with their brand.. i have used it for ages....

Martin Harris04/12/2017 14:47:48
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9025 forum posts
224 photos

I have a roll of ESUN grey which prints well - but I have found that the first couple of inches above the print head go brittle and it tends to snap after a couple of days of non-use and I have to say that feeding in a new piece is my least favourite part of 3D print operation. I have a roll of HK copper which (so far!) has remained intact between uses.

Has anyone else encountered this problem?

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