Search found 289 matches

by Meduza
February 24th, 2016, 4:57 am
Forum: Ultimaker 2 / Ultimaker 2+ / Extended & Go
Topic: Filament Drives
Replies: 25
Views: 25362

Re: Filament Drives

That could be a option if it good enough resolution :-)

It would be interesting to just attach one of those just on top of the feeder, and log requested and measured extrusion distance with timestamps to see what the difference really are.
by Meduza
February 22nd, 2016, 8:27 pm
Forum: Ultimaker 2 / Ultimaker 2+ / Extended & Go
Topic: Filament Drives
Replies: 25
Views: 25362

Re: Filament Drives

I totally agree with Johan, i believe that a lot of the problems with slight underextrusion and such we see today is because of deformation and micro-slippage on the surface of the filament, factors that most people seem to just ignore or even deny that they exist. A high resolution filament sensor ...
by Meduza
February 22nd, 2016, 9:25 am
Forum: Ultimaker 2 / Ultimaker 2+ / Extended & Go
Topic: Filament Drives
Replies: 25
Views: 25362

Re: Filament Drives

So, how to do a reliable, not too expensive (to get adoption) accurate filament sensor? I have been thinking about using a rotary encoder like this: http://www.ebay.com/itm/221765812822, cut out a small notch in the bowden tube, add some thin silicone heat shrink tubing to the encoder axle and sprin...
by Meduza
February 22nd, 2016, 9:18 am
Forum: Feedback, suggestions and more
Topic: Usermap and mChat
Replies: 41
Views: 40756

Re: Usermap and mChat

qwebirc on a separate page is what most forums use, it is a little aged now tough, so KiwiIRC that Ultimaker uses might be a better option: https://kiwiirc.com/
by Meduza
February 21st, 2016, 4:35 pm
Forum: Ultimaker 2 / Ultimaker 2+ / Extended & Go
Topic: Filament Drives
Replies: 25
Views: 25362

Re: Super hard nozzles - Test pilots

Maybe some mod (that means LePaul right now) can split this thread into a new one about filament sensors and servo loop filament drive :-)
by Meduza
February 21st, 2016, 8:16 am
Forum: Ultimaker 2 / Ultimaker 2+ / Extended & Go
Topic: Super hard nozzles - Test pilots
Replies: 446
Views: 442303

Re: Super hard nozzles - Test pilots

I belive that could make a large difference, even if it only is one part of the whole process to get control of, the next step is to add a second encoder after the bowden tube to map the impact the bowden tube has, and after that it is time to start calculating pressures in the nozzle and making it ...
by Meduza
February 21st, 2016, 6:44 am
Forum: Ultimaker 2 / Ultimaker 2+ / Extended & Go
Topic: Super hard nozzles - Test pilots
Replies: 446
Views: 442303

Re: Super hard nozzles - Test pilots

I have been thinking about adding a encoder on top of the feeder and graph commanded position vs feeded position, to see how much slippage the higher pressures really add.
by Meduza
February 20th, 2016, 4:09 pm
Forum: Feedback, suggestions and more
Topic: Facebook icon!
Replies: 9
Views: 10721

Re: Facebook icon!

On my phone it does not look too nice...
by Meduza
February 20th, 2016, 3:44 pm
Forum: Feedback, suggestions and more
Topic: Usermap and mChat
Replies: 41
Views: 40756

Re: Usermap and mChat

What is the deal with having a chat section of a forum? Please do as Ultimaker did and just connect a web IRC client to a forum IRC channel so i can hang there in my usual IRC client among the other ~35 different channels i follow :-)
by Meduza
February 19th, 2016, 6:44 am
Forum: Ultimaker 2 / Ultimaker 2+ / Extended & Go
Topic: Laser Engraving with UM2!!!
Replies: 23
Views: 25821

Re: Laser Engraving with UM2!!!

I am actually for some reason more scared by these small 1-3W laser engraving heads for 3d printers than what i am fiddling around with our 100W co2 laser at Stockholm Makerspace in service mode (i.e no safety switches engaged)... probably because with these small lasers people seem to use them as i...
by Meduza
February 19th, 2016, 6:40 am
Forum: General Discussion
Topic: A Tea between friends :-) How was Your Day
Replies: 1527
Views: 2127570

Re: A Tea between friends :-) How was Your Day

I already own a retrofitted CNC mill and a almost done larger ballscrew driven cnc router table with 80x100cm work surface wich both resides at Stockholm Makerspace nowdays, i only want a Shapeoko to be able to have a smaller cnc router at home to to make simple fast prototypes as a compliment to my...
by Meduza
February 19th, 2016, 3:27 am
Forum: General Discussion
Topic: A Tea between friends :-) How was Your Day
Replies: 1527
Views: 2127570

Re: A Tea between friends :-) How was Your Day

You mean they have raised their shipping fees recently? I was looking at buying one and got a shipping price of about 150$ or something in the vicinity, wich seemed fair, and i am holding out for the new Shapeoko 3 XL (the extra wide one on the right), but if they raised the price to 500$ shipping i...
by Meduza
February 19th, 2016, 3:13 am
Forum: General Discussion
Topic: A Tea between friends :-) How was Your Day
Replies: 1527
Views: 2127570

Re: A Tea between friends :-) How was Your Day

Just slept about 12 hours... probably needed after last nights sleep of about 90 minutes...
by Meduza
February 17th, 2016, 11:19 pm
Forum: Ultimaker Original & Ultimaker Original +
Topic: Ultimaker Original+ Extended custom build at Stockholm Makerspace
Replies: 40
Views: 104222

Re: Ultimaker Original+ Extended custom build at Stockholm Makerspace

One of my plans for that water cooled hotend is actually to line the cool part it with a piece of ptfe tubing just to get the friction down a bit more, i will probably be using some thicker ptfe tough.
by Meduza
February 17th, 2016, 1:50 pm
Forum: Ultimaker Original & Ultimaker Original +
Topic: Ultimaker Original+ Extended custom build at Stockholm Makerspace
Replies: 40
Views: 104222

Re: Ultimaker Original+ Extended custom build at Stockholm Makerspace

I have heard of so much problems with all-metal designs and PLA, so i am a little reluctant to use that for a printer that is going to be used for PLA prints... I actually think that the UM2 Hotend is more reliable than the UMO one, but that you more rarely hear about problems because of the overpow...

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