User talk:Traumflug

Hi there.

Made some suggestions here for the mainpage. Another would be to link "a sysop's talk page" on the mainpage talk page. I'd like to do it myself, however I feel that Admin is not precise enough.Danielpublic 11:12, 17 November 2012 (UTC)

Sorry, I forgot to sign my comment at the bottom of the page. -ljyang

oops, didn't see the comment section at the bottom of your page. -BP

sorry，please help me to delet http://www.reprap.org/wiki/File:Rampswire14.svg by sjw107273131,it is wrong....

Hi

Hi, I'm new here on this Wiki, but I've had a good deal of experience editing in other Wiki environments. (I ordered my first RepRap kit yesterday and I'm trying to learn all I can before it arrives). I noticed that you seem to be one of the few active sysops here, so I thought I'd ask you some questions, if you don't mind. I noticed today that there seem to be a lot of spam/nonsense pages being created. I tagged a few of them with the {{delete}} template, and I just wanted to make sure that was the right thing to do. Is there a noticeboard of some sort where these should be reported? Also, I was wondering if there's sort of a "village pump" where people talk about wiki maintenance related things, or a help desk of some sort? Thanks. Adjwilley 04:23, 2 March 2013 (UTC)

Hi Adjwilley. Spam is a normal state of affairs here, unfortuneately. between 10 and 50 entries per day. If you want to help fighting it, please replace the content with the simple word "spam". The most important thing is to get rid of the external link. --Traumflug 08:44, 2 March 2013 (UTC)

Alright, I'll do that. Thanks! Adjwilley 21:55, 3 March 2013 (UTC)

Could you please block User:Ipinson? Their only edits seem to be adding the same spam links to a large number of articles. Adjwilley 04:59, 9 March 2013 (UTC)

Microcontroller Choice in Gen7 Board

Hello. Right now, I am building my very first RepRap and I choose Gen7 and Teacup, because I like simplicity and DIY of those projects. Thank you for Gen7, it is great board!

I added some informations to Gen7 Board-AVR 1.5 yesterday, thank you for corrections. You marked ATmega164 as possible MCU for Teacup. When I compiled Teacup, the size of binary is over 17k bytes and almost 1K bytes od RAM. Am I missing some optimalization ? How is it possible to run Teacup on mega164? Thank you. --Vasco 15:13, 6 June 2013 (UTC)

For a minimum size of Teacup, #define BANG_BANG, undefine LOOKAHEAD and EECONFIG and use a small thermistor table. Also, implementation of M190, M161 and M162 can be removed, all of them are useless.

BTW., a funny experience with RepRap is, many people new to the matter receive soft- and firmware as a simple, fixed entity and consider hardware to be difficult. Actually, it's the other way around, building the mechanical part of a printer is much simpler than writing a slicer, designing an electronics is a snap compared to writing the firmware inside and adjusting mechanical stuff is much simpler than adjusting the firmware moving it. :-) --Traumflug 16:11, 6 June 2013 (UTC)

I could not find LOOKAHEAD, but BANG_BANG and EECONFIG works fine. Thank you for info.

Maybe it is because most people simply download firmware and software and use it, but they have to actually build electronics and mechanical part of RepRap. I can imagine, for people who are not developers, the electronics is much more difficult than software. But I agree with you -- firmware and slicer are the most complex parts of RepRap. --Vasco 11:56, 7 June 2013 (UTC)

Is there a pin-compatible ATmega256X module that may be used with the Gen7 kits? I have been searching component catalogs, but am a relative noob, and unable to understand the technical descriptions completely. I have your v1.4 Gen7 board, purchased a year ago. If there is a compatible ATmega2560 (or ATmega2564), please be kind enough to point me in the right direction. As you may see, even the numerical designation for the part, if it exists, is a mystery to me. -Phuzzy Logic 13 AUG 2013

The biggest ATmega fitting on a Gen7 board is still an ATmega1284(P). ATmega2560 & Co. are available as SMD packages, only. --Traumflug 20:23, 13 August 2013 (UTC)

Pololu Steppers and Alternatives

I purchased 4 Pololu DRV8825 Stepper Motor Driver carriers, the latest version (Pololu item #2133). I noticed that they are capable of 1/32 step resolution. Is it possible to use 1/32 step resolution on a Gen7 board? I will quote from the Pololu website the following information and switch settings:

QUOTE/

Step (and microstep) size

Stepper motors typically have a step size specification (e.g. 1.8° or 200 steps per revolution), which applies to full steps. A microstepping driver such as the DRV8825 allows higher resolutions by allowing intermediate step locations, which are achieved by energizing the coils with intermediate current levels. For instance, driving a motor in quarter-step mode will give the 200-step-per-revolution motor 800 microsteps per revolution by using four different current levels.

The resolution (step size) selector inputs (MODE0, MODE1, and MODE2) enable selection from the six step resolutions according to the table below. All three selector inputs have internal 100kΩ pull-down resistors, so leaving these three microstep selection pins disconnected results in full-step mode. For the microstep modes to function correctly, the current limit must be set low enough (see below) so that current limiting gets engaged. Otherwise, the intermediate current levels will not be correctly maintained, and the motor will skip microsteps.

MODE0 MODE1 MODE2 Microstep Resolution

Low Low Low Full step

High Low Low Half step

Low High Low 1/4 step

High High Low 1/8 step

Low Low High 1/16 step

High Low High 1/32 step

Low High High 1/32 step

High High High 1/32 step

/ENDQUOTE

I notice that there are three settings which designate the 1/32 step resolution. Is it possible to achieve one of these settings with the 2-jumper-switch on your Gen7 board? -Phuzzy Logic 14 AUG 2013

Preview button

Traumflug:

Sorry 'bout not using the Preview function; I'll make better use of it from now on.

Tadrow