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Re: cleaning paste needles
Immediately flush with liquid flux cleaner a few times, followed by water and isopropynol flushes has worked ok for me in the past. Must be done before the paste dries in the needle. All the
By Alexis Shaw · #36951 ·
Re: cleaning paste needles
I don't. Simple as that, I use disposable plastic tips, when the session is done, in the bin. No point trying to salvage half a gram of plastic that costs a few cents. >
By James · #36950 ·
Re: cleaning paste needles
It does help to know the magic words when looking for stuff. I use them for cleaning glue out of syringe needles. Do take the time to swipe the tips over some sandpaper, they are quiet sharp. I
By Tony Smith · #36949 ·
Re: cleaning paste needles
the use not being critical; have a look to Aliexpress. https://www.aliexpress.com/w/wholesale-acupuncture-needles.html?spm=a2g0o.home.auto_suggest.2.650c76dbYeQBIc The lead time is usually 10 -
By Pierre-Raymond Rondelle · #36948 ·
Re: cleaning paste needles
Ah, they're sold as 'printer cleaning needles' on Amazon uk, in handy kits of different sizes. https://www.amazon.co.uk/s?k=0.3mm+cleaning+needle (I have also bought a bunch of 3d printer nozzles,
By Steve Wiseman · #36947 ·
Re: cleaning paste needles
Acupuncture needles rock! Otherwise a guitar 'E' string ( smallest diameter one ) range from .008(~.2mm) to .012inch(.305mm)
By Lee Studley · #36946 ·
Re: cleaning paste needles
I’ll second the acupuncture needles. The 3D printing folk use them to clear nozzles, eg https://www.amazon.com/Printer-Cleaning-Stainless-Needles-Accessories/dp/B0DB1ZM9PD Tony Sent:
By Tony Smith · #36945 ·
Re: cleaning paste needles
Hello Steve. I do not see any acupuncture needles available from Amazon on this side of the pond.? The other site also in the UK that you linked seems to require being a licensed acupuncturist in
By Jim Pruitt WA7DUY · #36944 ·
Re: cleaning paste needles
<jpruitt67@...> wrote: Soak in IPA, and run through with acupuncture needles. I use #26 and #28 dispensing needles (on a dima dotmaster) and this gets them clean when they inevitably
By Steve Wiseman · #36943 ·
cleaning paste needles
How do you clean the needles used to dispense solder paste?? I thought I had it figured out as I got a 100ml luer lock syringe and ran 100ml of hot water through my #21 and #22 needles but the next
By Jim Pruitt WA7DUY · #36942 ·
Re: Sadder but wiser
The usual way is to print a 100x100mm square, then measure it. Suppose you measure it at 101mm, your scaling factor becomes 100/101, or 99%. If the software can’t do it then the print dialog
By Tony Smith · #36941 ·
Re: Sadder but wiser
got it! Thanks! Clark [email protected]> wrote:
By Clark Cone · #36940 ·
Re: Sadder but wiser
Great advice! They are only thinking of printing letters for office use, and we come along with our odd purposes. -- Steven Greenfield AE7HD
By Steven Greenfield AE7HD · #36939 ·
Re: Sadder but wiser
Hi again Clark, I calibrated the printer by printing successive images on plain paper with different cal factors and measuring them until I got it right. A bit wasteful of paper but better that using
By Morris Odell · #36938 ·
Re: Sadder but wiser
Hi Clark, If you are using Sprint-PCB,? when you click on the Print icon a window opens for printing. Along the top of that window there is a series of buttons for various functions including a
By Morris Odell · #36937 ·
Re: Sadder but wiser
Morris, what is your calibration method, please? Clark Cone [email protected]> wrote:
By Clark Cone · #36936 ·
Sadder but wiser
Hi all, I had an unpleasant experience recently but fortunately not a complete disaster. I have been making PCBs for years using the toner transfer method. The software I use is Sprint PCB and I
By Morris Odell · #36935 ·
Re: Converting Gerber files for use with a laser
Thanks. I'll check it out. Sam Reaves ARS W3OHM Owner / Moderator of: LeCroy Owners Group on 开云体育 Sencore Owners Group on 开云体育 Sprint Layout Group on 开云体育 Pulsonix EDA Group on
By Sam Reaves · #36934 ·
Re: Converting Gerber files for use with a laser
You can use FtatCAM http://flatcam.org/
By Zoran A. Scepanovic · #36933 ·
Converting Gerber files for use with a laser
Is there an easy way to convert 274-X files into files that a laser can understand? The Laser is 10W and can AFAIK accept G-Code. I would like to try etching isolation layers by painting the copper
By Sam Reaves · #36932 ·