Search found 39 matches

by Tomasz Stawarz
Tue Aug 01, 2017 1:30 pm
Forum: Hardware
Topic: Lines in print. Stepper resolution problem?
Replies: 74
Views: 9997

Re: Lines in print. Stepper resolution problem?

I would opt for Z wobble also. Especially if it looks the same on all prints as you have mentioned before.
by Tomasz Stawarz
Tue Aug 01, 2017 1:00 pm
Forum: Hardware
Topic: OpenBuild vs linear bearings
Replies: 10
Views: 2269

Re: OpenBuild vs linear bearings

There is ideal material for kinetic energy absorption and it is any non Newtonian fluid... Wouldn't that only work with fluids that gain in viscosity as shearing increases, as opposed to non-Newtonian fluids like coffee which tends to jump out of a mug at the slightest provocation? Just curious. Hi...
by Tomasz Stawarz
Tue Aug 01, 2017 12:34 pm
Forum: Hardware
Topic: Azteeg X5 GT 32bit - experiences, remarks, etc.
Replies: 10
Views: 3763

Re: Azteeg X5 GT 32bit - experiences, remarks, etc.

For me it isn't just that it is closed firmware, but who makes this firmware. Like I would go with Duet board but wouldn't go with any far or middle east device. And it's not that companies/people from that part of the world cannot develop something really good - they surely can! But im not very tru...
by Tomasz Stawarz
Fri Jul 28, 2017 1:13 am
Forum: Hardware
Topic: OpenBuild vs linear bearings
Replies: 10
Views: 2269

Re: OpenBuild vs linear bearings

As far as I knew - if they would be good with vibration reduction they would lose in precision department. Only two options to reduce vibration ( that are available when building 3D machine and also walls ;) ) are: increase mass of vibrating things (they will be harder to move therefor will vibrate ...
by Tomasz Stawarz
Wed Jul 12, 2017 10:36 pm
Forum: Hardware
Topic: Prusa i3 MK2 Frame
Replies: 3
Views: 781

Re: Prusa i3 MK2 Frame

Cheapest and very sturdy wood like material would be MFP board it is similar to OSB-3 but chips of wood are much smaller and not oriented in one direction. So mechanical properties are same in all directions. It is also water resistant (I would still use some lacquer or wax to prevent it from bendin...
by Tomasz Stawarz
Wed Jul 12, 2017 3:46 am
Forum: Hardware
Topic: How stron stepper motors do I need?
Replies: 0
Views: 435

How stron stepper motors do I need?

How strong stepper motors do we really need? As I'm building (or going to build) 3D printer, and I have been wondering what to chose. As prices of stronger NEMA 17 are almost the same as some mid range NEMA 23 I have been wondering how much of a holding torque do we really need in our machines. The ...
by Tomasz Stawarz
Tue Jul 04, 2017 3:14 pm
Forum: Hardware
Topic: Geared Extruder vs Direct Extruder
Replies: 3
Views: 2129

Re: Geared Extruder vs Direct Extruder

As far as I understand somewhere between 3:1-6:1 You gain accuracy and power, and loose nothing. Also you can use extruder that would just force shove filament so until nozzle is totally blocked it will extrude and retract - with 5:1 ratio 18Ncm motor will have effective force somewhere around 90Ncm...
by Tomasz Stawarz
Tue Jul 04, 2017 3:05 pm
Forum: Hardware
Topic: Mechanical couplers question
Replies: 5
Views: 1479

Re: Mechanical couplers question

What do You think about using short closed loop toothed belt nad two pulleys instead of coupler? I knew that this way we have more parts and its bit more complicated but is should remove any misalignment of motor and lead screws, and maybe we would be able to use one stepper motor for two vertical l...
by Tomasz Stawarz
Tue Jul 04, 2017 2:53 pm
Forum: Hardware
Topic: Duet LAN / Wi-Fi remarks, suggestions, opinions.
Replies: 0
Views: 425

Duet LAN / Wi-Fi remarks, suggestions, opinions.

Hi everybody!
I see that I'm mostly interested in controller boards as for now. So I would like to open topic on Duet controller boards. Anyone of You using them? Biggest advantages/disadvantages you experienced with that board and its software. Be so kind and write them down here.
Cheers Tomasz
by Tomasz Stawarz
Tue Jul 04, 2017 2:49 pm
Forum: Hardware
Topic: Replicape two years later (from Tom's review) - is it worth any attention now?
Replies: 2
Views: 874

Re: Replicape two years later (from Tom's review) - is it worth any attention now?

From what i have been able to check auto bed calibration is now available in this software. Also price is mentionable - now BBBlack stands around 50 bucks and Replicape is 99 bucks - so together it's like 150 bucks and thats less than Duet, or any genuine 32 bit board. But on the other side software...