Recent Posts

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For Sale/Wanted, Suppliers / RV1s For Sale
« Last post by Gazza on September 15, 2017, 10:53:08 AM »
We have customer selling RV1s machine told in working order has 4 banks of feeders , believed to be 2 x 10 x8mm , 1 3x12mm,3x16mm and a vib fdr.

Looking for £1200 or near offer plus vat for it.

Please contact us via email  gary@grovesales.co.uk
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For Sale/Wanted, Suppliers / Re: RV Tools for sale (New)
« Last post by phonoplug on September 11, 2017, 11:50:48 AM »
Just to confirm now that I have checked, I do have 2 of each available of you want them. If you could email me if/when you are ready to order, its:

info
at
wtechnology
dot
co
dot
uk

The things you have to do to avoid spam!

Alex Wilkinson
W Technology
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For Sale/Wanted, Suppliers / Re: RV Tools for sale (New)
« Last post by phonoplug on September 08, 2017, 11:32:24 AM »
Yes thats about right. T6 only really for 0402, T1 for 0603 and T2 for 0805, 1206, SOT23 etc unless you have parts very close together in which case you might need to go down a size for T2/0805 at least.

I'm sure I have 2 of each but I'm not where they are today so will double check and confirm on Monday if thats ok.
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For Sale/Wanted, Suppliers / Re: RV Tools for sale (New)
« Last post by Greasemonkey on September 08, 2017, 11:19:45 AM »
Hi Phono,

Thank you for the quick reply.
I am interested in all three sizes.
So am i right in thinking T6 is for 0402 T1 0603 and T2 0805?
Do you have 2 of each?

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For Sale/Wanted, Suppliers / Re: RV Tools for sale (New)
« Last post by phonoplug on September 08, 2017, 10:38:31 AM »
Hi - yes I do. By smallest do you mean T1 (top left in holder) or T6 (Bottom left)? Either way I have T1/2/6 available still.
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For Sale/Wanted, Suppliers / Re: RV Tools for sale (New)
« Last post by Greasemonkey on September 08, 2017, 10:24:57 AM »
Hello Phono,

Do you still have nozzles for sale?
We are in desperate need of the smallest ones. and the next size up.

7
RV Hardware / Re: First setup of my new RV1s - and a few general question
« Last post by pete_g on August 30, 2017, 11:00:59 PM »
Thanks again for the tips Mike, cheers!
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RV Hardware / Re: First setup of my new RV1s - and a few general question
« Last post by Mike on August 30, 2017, 12:24:48 AM »
You will find you need to occasionally mess with the thresholds in the CDF - the RV doesn't deal well with varying ambient levels so you ideally want to use it somewhere consistent, i.e. away from windows. At some point I intend to replace the illuminators with bright ones and stop down the camera lenses or add filters to make it less fussy.
You will also see some variation between parts from different manufacturers, particularly capacitors.
I wouldn't recommend tweaking the thresholds in the cal menu as a fix for a flaky part as it will effectively shift the thresholds for all parts.
Tweaking it in the CDF also means you can use the "run time test" option in the CDF to quickly tweak the parameters and see the effect. 

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RV Hardware / Re: First setup of my new RV1s - and a few general question
« Last post by pete_g on August 29, 2017, 09:57:56 PM »
Ha! Success!! Tonight I managed to place the four 0805 resistors onto my very simple test "printed-out" PCB (double-sided tape placed at the locations to hold the parts). Working with Mike's suggestions, I had a play with the camera threshold value, and reduced this to 60 from 90, which seemed to give a good component outline. I was rather nervous about touching anything other than the threshold box in the calibration screen, and to avoid messing anything up, I held an 0805 at the approximate correct height with tweezers in the cameras field of of view, and just changed the threshold value and touched nothing else, toggling between the camera picture and the graphical outline (there's probably a correct formal way to do this - I need to have a thorough scan through the pdfs and posts ..)

Testing placement after this seemed to get very good repeatable dimension values from the 0805 imaging, but it was still complaining that the parts were the wrong size. Looking at the CDF files for the R0805 components, it became apparent that the dimensions looked very different in terms of both body size and lead parameters from any of the other SMT package parts of a similar shape, eg 0603 etc. . To remedy this, at first I though I'd be able to quickly figure out what each of the various dimension boxes relate to in the "lead editor screen", but it wasn't clear how these inter-relate, so I opted to go with the "quick" dimensions check-box instead of using the drawn shape. Manually entering the same X & Y dimensions as reported by the imaging resulted in each of the four parts being successfully placed, although they were placed with a 90 degree rotation (that I erroneously have  specified in one of the earlier files), and I wasn't sure if/how to fix this at the job file stage (I'm sure that's an easy one I can figure out).

The placements, although at 90 degrees to the pads, were near perfect closest to the bottom RH fiducial, but seemed to drift ever so slightly for the components towards the LHS of the board. I need to study again how to accurately set the board fiducial references, as I think that it was only picking up on one of the two fiducials that I'd previously set ( the process for setting  REF1 and REF 2 still seems confusing to me, & it seemed that only one of the two REF positions had  been stored? ... this is an area which I need to spend some time re-reading the documentation and going over the forum posts again). Incidentally, I should mention that the placing tonight was done without doing any re-aligning ie. I just loaded the job file and hit place, so the machine was using the fiducial reference & pick position that I set on Saturday morning without any new re-alignment.

So far, throughout the time I've spent with the RV both the machine and the software have been very stable. Achieving the first placements really is quite a special moment, as you begin to realise the potential that having your own pick & place actually gives you! Very many thanks to everyone so far for their help, and especially to Mike for running such a great forum, and Gary at Grove Sales, who supplied the machines,  - highly recommended!

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RV Hardware / Re: First setup of my new RV1s - and a few general question
« Last post by pete_g on August 29, 2017, 06:54:42 PM »
Many thanks Mike for the pointers; will have another look tonight and see if I can get to the bottom of it.
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