Shot/bead blasting

[Ian]

I recently wanted to repaint front and rear calipers on the SRX, but looked at all the nooks and crannies and decided that scraping/sanding were out of the question. Im too tight to pay for bead/vapour/(whatever other sort of medium) blasting so decided to think about a bit of DIY.
I located a spare compressed air gun at work, found a small plastic bottle with a tight(ish) fitting screw lid, and a short piece of hard nylon tubing (with a brass nozzle I turned to increase the "venturi" effect.)
Enclosed photos of after blasting and after painting/assembly/refitting.

Im pretty pleased with the results for considerably very little effort. I will take a photo of the "gun" itself next time I`m in work and post soon

 Ian

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[johnr]

i bought a spot blasting gun for small bits from aldi for under a tenner. i was going to use soda in it.

[timbo]

They've turned out well nice Ian. What did you use as the blasting medium? And please post some pics of your set up?
I could do with something similar, for all the smaller stuff, qbut any bigger stuff I give to my local blaster who is really easy to pay 

[johnr]

place near me sells baking soda in 25 and 50 kilo sacks!

[Ian]

Hi Timbo, firstly I tried casting sand (working in a foundry there`s plenty  of the stuff around). This worked well but was slow in getting rid of powder coating. then I found some "exhausted" blasting medium ( I don`t really know whats its called but its quite largish diameter before its used in the rotary blasters) The used stuff is quite small and black! So I got in a bit of a mess but it was cheap to do...that was the best bit about it. And Yes I will take some pics tomorrow.

Ian 

[iansoady]

Hi Ian.

Any pics of the gun, as that looks like an excellent way to clean small parts?

[johnr]

i will get a pic in the morning.

[Ian]

Hi Timbo/Iansoady, sorry or delay in getting pics on here, busy doing other jobs on the bike!.  As you can see from the pics, its very crude and simple, but pretty effective. As I said the medium I used was 2nd hand shotblast which was quite fine. Im sure any  sort of dry sand would do a similar job. I blasted into a skip at work so didnt bother with making a cabinet but Im sure someone on here will have ideas about that.
Hope it helps someone out anyway.
Ian

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[timbo]

Thanks Ian, been looking at a few homemade set ups in YouTube as well 

[iansoady]

Looks pretty straightforward - many thanks.