Search found 453 matches

by dc42
Mon May 23, 2016 4:56 pm
Forum: Duet
Topic: How do I use the big power connector for the hotend
Replies: 9
Views: 2352

Re: How do I use the big power connector for the hotend

Hi, I am setting up my Duet 0.8.5 and have run into a small problem. I am powering my bed from an SSR so I do not need the big connector to try to power that. So I figured it would be better to hook that up to the hotend. So I have my hotend hooked up to the bed heater, with its thermistor hooked u...
by dc42
Sat May 21, 2016 4:02 am
Forum: Smoothieboard and variants
Topic: Lets talk Duet Controller v0.8.5 VS SmoothieBoard and LCD Screens On Max Metal Builds
Replies: 16
Views: 7972

Re: Lets talk Duet Controller v0.8.5 VS SmoothieBoard and LCD Screens On Max Metal Builds

Being a machinist with access to CNC machines, I don't like touch-screens much. I prefer physical buttons. The PanelDue design allows for the addition of a rotary encoder with push button, and the version 1 PCBs even had the pads to solder the encoder on the board. The version 1.1 PCB is smaller an...
by dc42
Thu May 19, 2016 5:15 pm
Forum: Show us your machine!
Topic: Rostock with Diamond hotend... FULL RGB COLOR MIXING
Replies: 15
Views: 7383

Re: Rostock with Diamond hotend... FULL RGB COLOR MIXING

Here's a video and some picture of me explaining the current state of my machine... Still a lot more work to do... It looks very nice! Can you tell us a little more about the mechanics of the machine, in particular what motors you use, what size extrusions, and what diameter and length the CF rods ...
by dc42
Tue May 17, 2016 3:57 pm
Forum: Duet
Topic: How fast are you able to upload a file?
Replies: 7
Views: 2113

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

Eric, as I explained before (not sure whether in this thread or another one) these cards are optimised for writing large blocks of memory, as happens in digital cameras. The headline speeds you see advertised are only achievable when writing large blocks. Unfortunately we don't have megabytes of RAM...
by dc42
Tue May 17, 2016 11:17 am
Forum: Duet
Topic: How fast are you able to upload a file?
Replies: 7
Views: 2113

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

I did some measurements on file upload speeds using various SD cards and two firmware versions. Here are my results: Card Duet 0.8.5 Duet 0.8.5 Duet NG prototype 1.10+4-dc42 1.12a-dc42 1.12a 2Gb unbranded 93 235 577 2Gb Samsung 146 348 786 4Gb Kingston class 10 227 550 856 4Gb Sandisk class 4 430 78...
by dc42
Mon May 16, 2016 6:52 pm
Forum: Duet
Topic: Impressions: Duet vs. Smoothie
Replies: 71
Views: 48630

Re: Impressions: Duet vs. Smoothie

bob64 wrote:Which page is that setting?


It's on the General tab of the Settings page, called Use Binary Prefix.
by dc42
Thu May 12, 2016 12:15 pm
Forum: Duet
Topic: Impressions: Duet vs. Smoothie
Replies: 71
Views: 48630

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: 48630

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: 2113

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: 4680

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: 4680

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: 4680

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: 1584

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: 48630

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: 10219

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: 10219

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: 48630

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: 10219

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: 2626

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: 7831

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: 7831

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: 4680

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: 4680

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: 1154

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: 7831

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...

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