Die Suche ergab 72 Treffer

von rubem
15 Apr 2021, 23:10
Forum: fischertechnik allgemein
Thema: Ersatzschlauch für Pneumatik / Replacement hose for pneumatics
Antworten: 5
Zugriffe: 328

Re: Ersatzschlauch für Pneumatik / Replacement hose for pneumatics

PHabermehl hat geschrieben:
15 Apr 2021, 17:21
You're welcome as always :-)

Just one more remark: the 2x3 tube does not work for vacuum. It collapses and blocks.

Kind regards
Peter
Good to know that, thanks! I'll order 2x4 then.
von rubem
15 Apr 2021, 15:03
Forum: fischertechnik allgemein
Thema: Ersatzschlauch für Pneumatik / Replacement hose for pneumatics
Antworten: 5
Zugriffe: 328

Re: Ersatzschlauch für Pneumatik / Replacement hose for pneumatics

Hi The Rob and Peter,

I didn't know ft is also using silicone tubes, that's a good thing. Since both external diameters are accepted I'll probably shop for both diameters and use whichever is most appropriate. Thanks for the information!
von rubem
15 Apr 2021, 14:54
Forum: fischertechnik allgemein
Thema: Echter Durchmesser der Metallkugel / Actual diameter of steel ball
Antworten: 2
Zugriffe: 197

Re: Echter Durchmesser der Metallkugel / Actual diameter of steel ball

Hi Rubem, as far as I know fischertechnik lists the marbles as 12.5mm diameter. They are in fact, as you suspected 1/2 inch, 12.72mm. Source: https://www.fischerfriendsman.de/index.php?p=10&sp=10#R10239k Thanks, great info! The "12" is actually taken from FTDB, the part is listed as "Metallkugel 12...
von rubem
15 Apr 2021, 01:39
Forum: fischertechnik allgemein
Thema: fischertechnik und Studica? / fischertechnik and Studica?
Antworten: 0
Zugriffe: 137

fischertechnik und Studica? / fischertechnik and Studica?

The Studica web site is (was?) a great place to shop for spare parts in the Americas. I purchased from them more than once and they have (had?) fair pricing and excellent service. But today, to my surprise, the address https://www.studica.com/fischertechnikSpareParts now redirects to another domain,...
von rubem
15 Apr 2021, 01:31
Forum: fischertechnik allgemein
Thema: Ersatzschlauch für Pneumatik / Replacement hose for pneumatics
Antworten: 5
Zugriffe: 328

Ersatzschlauch für Pneumatik / Replacement hose for pneumatics

Hi everyone, I need to buy some extra hose for pneumatics. The original hose 122363 is specified as 2,0 x 3,6 mm, and all other hoses from the FTDB have an inner diameter of 2,0 mm. Unfortunately the thinnest blue PU tube I can find is 2,5 x 4 mm, so I suspect it will not work. Silicone hose with an...
von rubem
15 Apr 2021, 00:54
Forum: Robo Pro / Computing / Software
Thema: Old two-wire ultrasonic distance sensor with TXT? / Alter Zweidraht-Ultraschall-Abstandssensor mit TXT?
Antworten: 14
Zugriffe: 1174

Re: Old two-wire ultrasonic distance sensor with TXT? / Alter Zweidraht-Ultraschall-Abstandssensor mit TXT?

Hi eumel, Great, thank you very much for your feedback. I actually was tempted to buy the same sensor because it has excellent specs. There are also mini laser time-of-flight sensors with seem to be even better, and I'm sure I've seen them here in the forum somewehere (by Juh, I believe). But the te...
von rubem
15 Apr 2021, 00:18
Forum: fischertechnik allgemein
Thema: Echter Durchmesser der Metallkugel / Actual diameter of steel ball
Antworten: 2
Zugriffe: 197

Echter Durchmesser der Metallkugel / Actual diameter of steel ball

Hi all, I'm currently purchasing some stell balls to build a small marble run, but I don't have any of the original ones (part # 144262). Are they indeed 12 mm diameter or actually 12,7 mm (that is, 1/2 inch)? I believe this small difference is not important, but I just want to be sure. Thanks for a...
von rubem
11 Apr 2021, 21:13
Forum: Modellideen & -vorstellung
Thema: Verbesserungen am Hochregal von Automation Robots / Improvements on Automation Robots high bay storage rack
Antworten: 0
Zugriffe: 151

Verbesserungen am Hochregal von Automation Robots / Improvements on Automation Robots high bay storage rack

Hi all, I have built a slightly improved version of the high bay storage rack from the Robotics Automation Robots Set. Much faster speeds can be achieved with just a few modifications in the original model. The photo shows how I changed the encoder motor gear ratios, and the original worm drive for ...
von rubem
06 Apr 2021, 14:24
Forum: Robo Pro / Computing / Software
Thema: Old two-wire ultrasonic distance sensor with TXT? / Alter Zweidraht-Ultraschall-Abstandssensor mit TXT?
Antworten: 14
Zugriffe: 1174

Re: Old two-wire ultrasonic distance sensor with TXT? / Alter Zweidraht-Ultraschall-Abstandssensor mit TXT?

Hallo... Olny as a information. Conrad Elektronik has a different one. This has a different connector and ist "V2". Thank you, I didn't know about the "old" version. I bought these from Ali Express from a store called "EC-Buying Ali Store". They are extremely cheap (probably less than one Euro) eve...
von rubem
05 Apr 2021, 22:22
Forum: Robo Pro / Computing / Software
Thema: Old two-wire ultrasonic distance sensor with TXT? / Alter Zweidraht-Ultraschall-Abstandssensor mit TXT?
Antworten: 14
Zugriffe: 1174

Re: Old two-wire ultrasonic distance sensor with TXT? / Alter Zweidraht-Ultraschall-Abstandssensor mit TXT?

Today my new RWCL-1601 ultrasonic sensors arrived, and they fit perfectly inside the original ft housing with no modifications except for the removal of the 4-pin header connector. The sensor has exactly the same width as the original PCB (upper left). I soldered four thin flexible wires on it and b...
von rubem
29 Mär 2021, 22:54
Forum: Robo Pro / Computing / Software
Thema: Best choice of motor driver?
Antworten: 12
Zugriffe: 576

Re: Best choice of motor driver?

Recently I've been testing the DRV8833, which (nominally) can drive up to 1,5A. I like it, as It has some additional features such as overcurrent protection, current limiting, and a fault signaling pin. A little off-topic, but still about chips: The Didacta board included in the ft Starter Set for ...
von rubem
27 Mär 2021, 15:17
Forum: Robo Pro / Computing / Software
Thema: Best choice of motor driver?
Antworten: 12
Zugriffe: 576

Re: Best choice of motor driver?

In case you did'nt notice, there's at least three different modules with this chip, Adafruit, Pololu, and noname Chinese ones, and not all make all of the features of the chip available. Particularly the cheap ones from ebay omit the current control pins, but for testing purposes it probably doesn'...
von rubem
27 Mär 2021, 00:06
Forum: Robo Pro / Computing / Software
Thema: Best choice of motor driver?
Antworten: 12
Zugriffe: 576

Re: Best choice of motor driver?

All I can say is that it tested fine with ft motors at 9V. I'm far from being an expert, but personally I'd be worried getting close to the current limit, but not so much with the voltage. Also, 10.8V is the recommended value, the maximum supply voltage is 11.8V, so there's still some extra safety ...
von rubem
26 Mär 2021, 21:44
Forum: Robo Pro / Computing / Software
Thema: Best choice of motor driver?
Antworten: 12
Zugriffe: 576

Re: Best choice of motor driver?

@Jan: Thanks for the advice! The DRV8833 keeps popping up in my searches, but I see its max operating voltage is 10.8 V. Isn't this too close to 9V to be safe? The TB6612 is rated at 15 V max, isn't this chip a safer bet?
von rubem
26 Mär 2021, 19:43
Forum: Robo Pro / Computing / Software
Thema: Best choice of motor driver?
Antworten: 12
Zugriffe: 576

Best choice of motor driver?

I was doing some tests with motor drivers and arrived to some interesting results. I have just very basic equipment (i.e. an old digital multimeter), but I made several measurements and the results seem to be consistent. For the power source I'm using a no-brand 9V 3A switching power adapter which I...
von rubem
24 Mär 2021, 14:12
Forum: fischertechnik allgemein
Thema: Retro Mechanik Konzeptkunst / Retro Mechanics concept art
Antworten: 20
Zugriffe: 911

Re: Retro Mechanik Konzeptkunst / Retro Mechanics concept art

Dear Holger,

The forum also does not accept SVGs, so I've created a shared OneDrive folder with the SVG and a PDF:

https://1drv.ms/u/s!AoEOnU-XO9iY1PQzDvg6DWidBMEHyg
von rubem
23 Mär 2021, 23:55
Forum: fischertechnik allgemein
Thema: Retro Mechanik Konzeptkunst / Retro Mechanics concept art
Antworten: 20
Zugriffe: 911

Re: Retro Mechanik Konzeptkunst / Retro Mechanics concept art

Hello ... turned out :-)well! Which font did you use for fischertechnik, especially the round "k"? And? Have you already chosen a number for the box? :-) Kind regards, fishfriend Holger Howey I suppose the old logo didn't use a typeface, it seems it was a custom design. So I drew the characters as ...
von rubem
23 Mär 2021, 13:52
Forum: fischertechnik allgemein
Thema: Retro Mechanik Konzeptkunst / Retro Mechanics concept art
Antworten: 20
Zugriffe: 911

Re: Retro Mechanik Konzeptkunst / Retro Mechanics concept art

Yes, it was a pleasure to do it. And I must give credit where credit is due: The little model is made out of SketchUp parts I found on the web by Berserker. And the rendering was made in Blender by my son Leonardo.
von rubem
22 Mär 2021, 22:09
Forum: fischertechnik allgemein
Thema: Retro Mechanik Konzeptkunst / Retro Mechanics concept art
Antworten: 20
Zugriffe: 911

Re: Retro Mechanik Konzeptkunst / Retro Mechanics concept art

MasterOfGizmo hat geschrieben:
22 Mär 2021, 22:07
I frequently suggest to ft to cooperate with the community. Looks like that would even be an option when it comes to package design.
Absolutely, I can help with that.
von rubem
22 Mär 2021, 21:27
Forum: fischertechnik allgemein
Thema: Retro Mechanik Konzeptkunst / Retro Mechanics concept art
Antworten: 20
Zugriffe: 911

Re: Retro Mechanik Konzeptkunst / Retro Mechanics concept art

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