Any interest in a CREE LED solder paste stencil?

Make it about 21, I just stumbled over this and thought this might ease the reflow process a lot.
Nice to have you on board.
And thx to texaspyro for making the layout.
HQ

I’m wanting to get a set of stencils for both sides of a BLF17DD V2.0 and for the MCU side of the Tiny10 but when I download the files from OSHpark and upload them to Oshstencil in the preview it only loads the outer ring, what am I doing wrong? BTW I was able to order the cree stencils no problem a few months ago.

BLF17dd link

Tiny10 link

You’re only getting the outer ring because standard oshpark gerbers don’t include solder paste layers. The paste layer pads are a little smaller then the soldermask openings.

A little earlier this week I had my mind on that subject. I was thinking that even a slapdash job of adding solder paste layers to the BLF drivers would be valuable to some of our members (including me). I’m not volunteering for the job right now though unfortunately.

I used texaspyro’s Cree LED stencil (from this thread) for the first time today, it was nice. Thanks texaspyro.

You don’t need to manually add paste layers, the board already has them. When creating gerbers your cam job only exports the layers you’ve selected. Mattaus would need to add paste layers to his cam job.

You are correct. For some reason I was assuming that nobody had bothered to add the paste outlines to the parts, but I just went back and looked at both the Knucklehead and “15mm 7135” .brd files and I see that the outlines are all there. I guess I was projecting my laziness onto others! :stuck_out_tongue:

Cereal_killer, I uploaded a copy of tiny10 that includes paste layers oshpark.com/shared_projects/BquLDSlh. It will work on oshstencil.com. I happened to have an original copy of tiny10 to use. Sorry, I can’t do BLF17dd as well, don’t have an original copy of that.

Paste and stop is added automatically to the pads when you create a part. Paste is the same outline as pads.

For some reason Mattaus is a glutton for punishment :wink: … he goes through the extra steps of making Gerber files and uploads them to OSHPARK,. Unfortunately he does not usually make the solder paste layers.

All you really need to do is upload the Eagle .brd file (assuming you are using Eagle to lay out your boards). This saves you the steps of running the Eagle CAM processor to make Gerber files and the icky/error prone task of selecting, renaming, and zipping up the Gerber files. Both OSHPARK and OSHSTENCILS can work directly with Eagle .BRD files.

I tried uploading Mattaus’ tiny10 .brd. Oshpark wouldn’t have it.
Error processing flie
• is not a valid Eagle board file

Oshpark’s way of saying they don’t like him perhaps. :ghost:

OSHPark is quite flaky with the .brd file

Is there an extra layer that should be selected to make a paste layer…I use Mattaus’s cam job to generate my board as well
edit

Yup…verified, I tested 2x times
1st time went into the Mattaus CAM job, added an extra process called it PasteLayer, changed to the GERBER_RS274X and highlighted the tCream bCream (saves it in the %N.XLN file), then ran the job…uploaded to OSHPark stencils…when I viewed the job the .gts and .gbs would work as a stencil…when I removed that layer and deleted the .zip and reran the job and uploaded the layers weren’t there anymore and it wouldn’t make good stencil builds

Come to think of it…when I created the tab…it duplicated the drills and holes, not sure if it left the Drills and Holes selected and I just added tCream and bCream to the .XLN file and OSHStencils just picked it up…

I dunno… I have done dozens of boards through them… all from .BRD files.

Yeah I have too but sometimes they fail…so far the .zip with the 8 layers from Mattaus’s build work like a champ

Only caveat I see, it leaves the ground ring, if they cut the .gts and .gbs stencil with that ring…it all falls out

Would need to remove that ground ring in the paste layer to prevent it cutting the insides loose…

You selected tStop & bStop layers. In the cam processor click add, clear all layer selections, add tCream, change file extension to .gtp. For the bottom its bCream & extension .gbp.

I could give you my cam job if you like.

Bazing!

I added two tabs, labelled them Top PasteLayer, selected only tPaste, and Bottom PasteLayer bPaste, told it to save them as .PST and .PSB, and voila!
So adding two more files to the .zip will round it out completely for OSHPark and OSHStencils…one quick click and the gerber file is good to go

Bottom

Top

I think that will do it :slight_smile:

There you go. :bigsmile:
Except name them .gtp and .gbp.

The whole zip file will work for both OSHPark and OSHStencils. No need to separate the files or anything.

Nice…thanks!

Awesome man thanks again, just ordered, the top one was $2 (if bought alone would be rounded up to $5)

Be sure to reduce the stencil border. Cuts the cost down.

Can you post a link to the file we need, described as: ” on OSHPARK.COM as a shared project. Download the .BRD file ”

I looked, don’t know my way around; the page’s search tool — looking for “stencil” — doesn’t find it, and it appears there are 400 shared project pages?

It seems that something got messed up in his post, I think he had the link there previously:
CREE MTG/XRE/XML/XPG solder paste stencil
http://oshpark.com/shared_projects/dw8NYoED