I just tried some things out and i found an awesome combination to prevent from scraping off the transparency leftovers: use some application tape ("Oratape", got mine from there: http://http://plotter-folien.com/product_info.php?info=p32_uebertragungsfolie-30-5-cm-x-100-m.html) and stick it on the bottom side of the transparency foil. Finally you can simply remove the stencil and all the cutouts remains on the application tape. Works just perfectly and isn´t too expensive.
I cut out some stencils the last two days and I think I found the non-plus-ultra configuration... Software: I used the latest version from Peter and modified it with the speed-up-tuning from Andre (thanks to you both).
I bought at a stationery shop some fullsize A4 paper-labels (with some kind of "glue" on one side). I glued the label to the bottom side of the transparency film (3M PP2500). Then I put that with the paper label side down onto the cutting mat (so the transparency is on top). Also I changed the blade-settings to "1" (which was definitely not possible before) and started plotting. After the cut was completed, I removed the glue from the stencil by using hot water with soup and then some alcohol. There is no need to free the cutting mat from the small cut-out-pieces, they are all hold by the paper label. The result is just awesome. Much more precise as before.
thanks for testing. This is the gerber file, default settings, default offset, etc. (needed to add .txt for upload here)
Cheers Andre[/quote]
Hey Andre, sorry for the late reply, I tested it already on saturday but i had no time to reply here... Look at the attachment, there is the result with the default optimize.py file (that really took a looooooooong time to cut).
the lower left corner is a bit missaligned, and some pitchs are broken. Similar to your result, that is not really a good stencil. With your improved optimize.py file, I got a very good and clear result in less time (see attachment)!
actually i´m trying out the3M PP2500 transparencies, they are definitivly much stronger to cut than the Avery 2502 (also 100µ) and the cuttings don't look that good. I need to set the blade to 2.
[quote author="xl97"]I 'believe' your setting are only set up to cut twice.. (not 4 times).. (but I could be wrong). seems like you only set 2 speed settings.. and 2 force settings (for two passes)[/quote]
thats correct, my cutter is cutting 4 times (within 2 passes, every pass with 2 cutings): 1st with force 8, then 30, then again with 8 and again with 30
In the attachement are my results using the 3M PP2500 (should be the equal to the 3M PP2200).
Tobias
Ps.: I would like to say thank you to all of you for your tips and hints, thats really a great thing to do Stencils so easy...
offset = (4,0.5) #offset x,y translate to device coordinates x,y (inches) border = (1.5,1.5) #border bx,by leave a border around the bounding box of the gerber file matrix = (1,0,0,1) #matrix a,b,c,d transform coordinates by [a b;c d] speed = [2,2] #speed s[,s2[,s3]] use speed s in device units; s2,s3 for multiple passes force = [8,30] #force f[,f2[,f3]] use force f in device units; f2,f3 for multiple passes cut_mode = 0 #[0|1] 0 for highest accuracy (fine pitch), 1 for highest speed
(my Cameo is cutting 4 Times with this config, is that correct?)
* a brand new Silhouette Cameo * driver x64 from CD * a brand new cutting mat from Silhouette Cameo retail package * blade setting: 1 * Avery 2502 InkJet Transparencies (i put the rough side downwards, so the cutter cuts the glossy side of the transparency) * i used a credit card to fix the transparency on the cutting mat (be careful, do this with sensitivity)
I also got a 100pcs. package of 3M PP2500 transparencies, i will test them tomorrow.
thank you for your reply, i finally got some transparency´s and already tested it :). The G2G is really working with FANTASTIC results... I used the "improved" optimize.py file from this thread here.
this topic is a great source for plotting SMT stencils. I just received my Silhouette Cameo today. Now i installed all the necessary stuff to run g2g on a Windows 7 machine. It seems that it´s working - but actually I´m out of transparency stock and can´t test it properly... Is there an easy way to run the test-scripts from a Windows machine? If it is possible, whats the commando line for this?
