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21
Software / Re: Webbotlib Studio FBoot only works the first time!
« Last post by Webbot on October 11, 2014, 09:11:04 AM »
WLSBoot can now be downloaded from here: http://webbot.org.uk/iPoint/55.page
NB For the Axon(s) you need the UART 1 version.
22
Electronics / Re: Help with converting flow meter output signal to power a relay.
« Last post by Billy on October 10, 2014, 11:33:36 PM »
Hey Matt,
Not a really hard problem to solve I don't think.
...but many people that post for the first time never come back to see if there was an answer given. So effort spent to answer questions from brand new members seems a waste of effort.
Let us know if you're still looking for an answer. I'm sure we can come up with something that uses a diode, op-amp, a cap and a resistor or two.
23
Mechanics and Construction / Competitive quotes for all your parts
« Last post by BriteHub on October 10, 2014, 04:45:20 PM »
Hi Robot world!

I wanted to introduce you to BriteHub - we are a manufacturing marketplace that connects people and businesses that need parts made with a community of certified, and vetted manufacturers to help make your parts.

We have been working with many universities and robot friendly folks to help get parts 3D printed, CNC'd, and other manufacturing processes.

If you have a part and need competitive quotes - create a Request for Quote at http://britehub.com
24
Misc / Need something to count fabric. Will pay to have it built.
« Last post by oxx155 on October 10, 2014, 03:55:42 PM »
I need a device (I was thinking laser out of a gaming mouse) that can count fabric (by the foot) as it goes under the laser, and the footage is displayed. Then the ability to "reset" the counter.
I really need it to be accurate.
I also need it to be protected in some sort of casing or box.
I thought someone who builds robots and works with lasers daily would be the best person for the job.
PM me through here or email me at [email protected].

Thanks
25
Software / Re: Webbotlib Studio FBoot only works the first time!
« Last post by Hero I on October 10, 2014, 02:45:30 PM »
Looking forward to testing WLSBOOT and will be interested in the testing of the AvrDude support.
26
Software / Re: Webbotlib Studio FBoot only works the first time!
« Last post by Webbot on October 10, 2014, 12:56:07 PM »
Ok great. Attached Help was useful - as it also shows that your running a 16 bit version of Java on your 64 bit machine. Not relevant to this issue - but once your chaos has settled then you may want to install a 64 bit version (you can have more than one - controlled via environment variables: JAVA_HOME and also the PATH - as to which is used by default).

Need to get WLSBOOT into my source control and build system - over the weekend (hopefully) - and will then PM you a link to download it (as it won't be on general release to start with). Dont want lots of threads like this one running concurrently :-)

Have also been working on AvrDude support which could help you as the Dragon is 'supported'. Have no way to test it out so, if your up for that at some point, then would appreciate your co-operation.

Will PM you when WLSBOOT is ready to go


27
Software / Re: Webbotlib Studio FBoot only works the first time!
« Last post by Hero I on October 09, 2014, 08:11:33 PM »
I'm running Webbotlib Studio via WebbotLibStudio.jnlp

The version is 1-13-1.

See attached for the Webbotlib Studio help about info.

And yes, I would love to try your WLSBOOT program.

28
Electronics / Re: Help with converting flow meter output signal to power a relay.
« Last post by 1967marti on October 09, 2014, 04:52:03 PM »
*side note*  To help grease the wheels: We have a laser cutter on-site; as a "thank you" for your help I could do some custom acrylic parts.

Thanks!

- matt
29
Electronics / Help with converting flow meter output signal to power a relay.
« Last post by 1967marti on October 09, 2014, 03:08:18 PM »
Hi all!

I'm trying to find a cheap/easy way to convert the pulsed VDC output from a common liquid cooled PC flow meter to power a PCB mounted relay.

The board I'm working on will have a 12VDC supply to it; so the relay that needs to be powered can use any voltage below that (if it matters). The flow meters that I'm hoping to use are the cheap ones used for water cooling in home PCs. The meters have an input of 5-24VDC and an enclosed hall-effect sensor that sends out a signal that is pulsed by how fast the internal fan is spinning.
The use of this is for a coolant stream for a CNC mill. I need to have a relay triggered if the flow is stopped. The pressure of the coolant is too low to use a screw-on pressure switch, so a flow meter is my only option. Since the  flow of coolant can be throttled up or down depending on the material being cut the relay should only be triggered if it detects no pulses coming from the flow meter, AKA the speed of the pulses doesn't matter just that they occur at least 2 or 3 times every second or so. 

I figure this is something that can be done pretty easily with a simple 555 timer circuit? At least I hope so.... Any ideas on this or a circuit diagram I can use?   :-\

Thanks!

- matt
30
Note to self --- after more digging I think the MCP23017 chip will meet my needs.

However, I would still appreciate any on usable chips.

Cheers


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