Search found 447 matches

by dc42
Thu May 12, 2016 12:15 pm
Forum: Duet
Topic: Impressions: Duet vs. Smoothie
Replies: 71
Views: 47203

Re: Impressions: Duet vs. Smoothie

ugg kibibytes.. Yes, I don't know why chrishamm uses KiB/s to abbreviate kilobytes per second in DWC. I'll suggest he changes it to Kbytes/s, or perhaps to Mbytes/s if we manage to increase the speed some more. It turns it that you can change the units from kibibytes/sec to kilobytes/sec on the Set...
by dc42
Wed May 11, 2016 6:41 am
Forum: Duet
Topic: Impressions: Duet vs. Smoothie
Replies: 71
Views: 47203

Re: Impressions: Duet vs. Smoothie

bubbasnow wrote:ugg kibibytes..


Yes, I don't know why chrishamm uses KiB/s to abbreviate kilobytes per second in DWC. I'll suggest he changes it to Kbytes/s, or perhaps to Mbytes/s if we manage to increase the speed some more.
by dc42
Tue May 10, 2016 6:24 pm
Forum: Duet
Topic: How fast are you able to upload a file?
Replies: 7
Views: 1916

Re: How fast are you able to upload a file?

I made some improvements to the SD card write code in my 1.12 release (now superceded by 1.12a) and I am now getting 900kbytes/sec on one of my printers. The other printer is delivering about 500kbytes/sec, which although slower is a big improvement on the speed it was giving before. The SD card you...
by dc42
Tue May 10, 2016 5:27 am
Forum: Duet
Topic: Duet + PT100 thermocouple
Replies: 15
Views: 4326

Re: Duet + PT100 thermocouple

The PT100 sensor in the pictures is the one sold by E3D here m. You will also need the new heater block here m if you intend to fit it to an E3D hot end (there is a different block if you use the Volcano nozzles). A thermocouple is quite different from a PT100 sensor and needs a different interface ...
by dc42
Mon May 09, 2016 12:52 pm
Forum: Duet
Topic: Duet + PT100 thermocouple
Replies: 15
Views: 4326

Re: Duet + PT100 thermocouple

Correct, I am not involved in the production of the current Duet boards, although some of my suggestions were taken into account in the design of the Duet 0.8.5. I understand that Think3DPrint3D has been caught out by the rapidly rising demand for the Duet 0.8.5, so although they have been ramping u...
by dc42
Sun May 08, 2016 3:41 pm
Forum: Duet
Topic: Duet + PT100 thermocouple
Replies: 15
Views: 4326

Re: Duet + PT100 thermocouple

I have now released firmware version 1.12 with PT100 support. See the separate thread about that release.
by dc42
Sat May 07, 2016 5:57 pm
Forum: Duet
Topic: New RepRapFirmware 1.12-dc42
Replies: 3
Views: 1470

New RepRapFirmware 1.12-dc42

I have just released new firmware. Highlights of this release include support for PT100 temperature sensors , provision of a macro file cancel.g that is run when a print is paused and then cancelled, and faster file uploads through the web interface. See m for more details and important notes before...
by dc42
Sat May 07, 2016 5:56 pm
Forum: Duet
Topic: Impressions: Duet vs. Smoothie
Replies: 71
Views: 47203

Re: Impressions: Duet vs. Smoothie

For info, I have just released version 1.12 of my fork or RepRapFirmware, which has further improvements to the SD write code. I was previously getting around 450Kbytes/sec from my best-performing SD card. Now I get this: https://dl.dropboxusercontent.com/u/19369680/UploadSpeed.png Measured on a Due...
by dc42
Sat May 07, 2016 5:45 pm
Forum: Duet
Topic: Duet and Multi-Color/Multi-Filament Extrusion
Replies: 37
Views: 9432

Re: Multi-Filament Extrusion: Ideas for Better Filament Mixing

Was wondering what other people would think about the following to help facilitate with mixing of colors using the Diamond Print head or cyclops. Would it be practical to have subtle extrusion and retraction (1-3 mm) in a pulsing fashion that would alternate between any of the three extruders (or t...
by dc42
Sat May 07, 2016 5:36 pm
Forum: Duet
Topic: Duet and Multi-Color/Multi-Filament Extrusion
Replies: 37
Views: 9432

Re: Duet and Multi-Color/Multi-Filament Extrusion

3D-Print, do you still have an issue with tool changes when using absolute extruder coordinates? If so, check your tool change files tpre0.g, tfree0.g, tpost0.g etc. If they have any G1 E commands in them to retract or extrude filament, make sure they have the M83 command before that. You don't nee...
by dc42
Thu May 05, 2016 5:07 pm
Forum: Duet
Topic: Impressions: Duet vs. Smoothie
Replies: 71
Views: 47203

Re: Impressions: Duet vs. Smoothie

626pilot, if you are only getting 20Kbytes/sec web upload speed to the Duet then something is very wrong. Most people get around 200kbytes/sec and some get 400kbytes/sec. The Duet uses a 42MHz 4-bit wide interface to the SD Card (the same as SDIO) driven with DMA, unlike all other open source boards...
by dc42
Sun May 01, 2016 4:51 am
Forum: Duet
Topic: Duet and Multi-Color/Multi-Filament Extrusion
Replies: 37
Views: 9432

Re: Duet and Multi-Color/Multi-Filament Extrusion

3D-Print, do you still have an issue with tool changes when using absolute extruder coordinates? If so, check your tool change files tpre0.g, tfree0.g, tpost0.g etc. If they have any G1 E commands in them to retract or extrude filament, make sure they have the M83 command before that. You don't need...
by dc42
Thu Apr 28, 2016 7:09 pm
Forum: Duet
Topic: Request for dc42...
Replies: 11
Views: 2366

Re: Request for dc42...

Could you add the ability to specify a speed parameter when you're specifying a thermostatic temperature with the T parameter on the M106 g-code? I've noticed that the PEEK fan can push so much air that the hot end can struggle to reach & maintain temperature. It would be nice to be able to dia...
by dc42
Wed Apr 27, 2016 6:45 pm
Forum: Duet
Topic: Duet with 24V
Replies: 37
Views: 7154

Re: Duet with 24V

Thanks for posting this info! I was just wondering about my current build. So what is minimum acceptable resistance of heated bed at 24V without going with SSR? I have a Onyx rev.3 that measures 1.2 ohms. I would really prefer to run my Duet 0.85 without SSR, for simplicity. Also, I could adjust th...
by dc42
Wed Apr 27, 2016 6:30 pm
Forum: Duet
Topic: Duet with 24V
Replies: 37
Views: 7154

Re: Duet with 24V

bob64 wrote:Anyone got recommendations for a 24v fan/duct?


24V fans are widely available on eBay as well as from the usual component distributors.
by dc42
Wed Apr 27, 2016 6:59 am
Forum: Duet
Topic: Duet + PT100 thermocouple
Replies: 15
Views: 4326

Re: Duet + PT100 thermocouple

The wiring instructions are now live at http://reprap.org/wiki/Using_PT100_temp ... apFirmware.
by dc42
Wed Apr 27, 2016 2:22 am
Forum: Duet
Topic: Duet + PT100 thermocouple
Replies: 15
Views: 4326

Re: Duet + PT100 thermocouple

The digital interface is SPI running at 4MHz so the wiring between the Duet and the RTD interface board should be short. Increasing the wire length on the PT100 is no big deal. You can calculate the effect on the reading. Best to avoid introducing additional.connectors, or if you do then make sure t...
by dc42
Tue Apr 26, 2016 1:05 pm
Forum: Duet
Topic: Cannot Connect Through DWC
Replies: 3
Views: 1036

Re: Cannot Connect Through DWC

Try clearing cookies and local variables.
by dc42
Tue Apr 26, 2016 12:44 pm
Forum: Duet
Topic: Duet with 24V
Replies: 37
Views: 7154

Re: Duet with 24V

A couple of points: 1. IMO there are two main advantages of using 24V power instead of 12V, which may or may not be relevant to your machine: - You can have double the bed heating power before you need to use an SSR - You can get higher speed from the motors. This is especially relevant when using 0...
by dc42
Tue Apr 26, 2016 12:33 pm
Forum: Duet
Topic: Duet setup - instructions in progress
Replies: 346
Views: 83157

Re: Duet setup - instructions in progress

Anybody else having a weird windows driver thing going on? The Arduino board works properly from the IDE install, but the Duet itself isn't happy. This is a known issue with my latest 1.11 firmware revision and Windows 8. I'll release an update soon. It's because the Arduino Due .inf file no longer...
by dc42
Tue Apr 26, 2016 12:27 pm
Forum: Duet
Topic: Duet + PT100 thermocouple
Replies: 15
Views: 4326

Re: Duet + PT100 thermocouple

I have just finished implementing PT100 support in my fork of RepRapFirmware, and tested it with the E3D PT100 sensor. I will release and document it in the next few days. You will need a MAX31865-based RTD interface board such as this one m. Make sure you get one that is designed to run for use wit...
by dc42
Tue Apr 26, 2016 10:15 am
Forum: Duet
Topic: Impressions: Duet vs. Smoothie
Replies: 71
Views: 47203

Re: Impressions: Duet vs. Smoothie

Things have moved-on a little in the Duet world since the start of this thread, so I'd like to point out what's changed: - Updating the configuration file: it's always been possible to edit a copy of config.g held on your PC and then upload it and restart the Duet via the web interface, but now ther...

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