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Old 21st March 2014, 01:19 PM   #1
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Location: quebec
Default Sensitive drill for PCB

I started with a JOBMATE 8 inches press drill, I removed motor, chuck and many others parts.
I reversed the head ant attached a round table on the spindle.
I used the table bracket to fit a dremel.
And after all these modifications I had this sensitive press drill
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Old 25th March 2014, 04:31 AM   #2
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And you fixed it at 90 degrees LOL
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Old 25th March 2014, 12:04 PM   #3
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No I simply should learn how to check and fix photo rotation in a post ...

I post that photo only to help people who want to build something ....
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Old 26th March 2014, 04:18 AM   #4
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For info

You have to rotate it on the PC(paint, photoshop) or Camera, save it and then upload it.
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Old 26th March 2014, 04:43 AM   #5
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Quote:
Originally Posted by gmphadte View Post
You have to rotate it on the PC(paint, photoshop) or Camera, save it and then upload it.
I think the "Picture Manager" that comes with Microsoft Office is the easiest way to rotate, crop, or compress most image formats.

Dale
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Old 26th March 2014, 05:05 AM   #6
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Looks like a fair bit of work, but evidently worth the effort. Very nice - thanks for sharing!
You must do quite a bit of PCB fabrication to justify that. Curious: do you use specialized PCB drill bits with a standard diameter shank, or just regular twist drill bits? If the latter, do you have any trouble chucking the various size bits in what I presume is the typical 4-jaw collet of that rotary tool?
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Old 26th March 2014, 12:56 PM   #7
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Carbide drill are avaible but are expansive, long lasting but very brittle, if you use them dont forget glasses to protect your eyes, it is a must.

I use high speed twist brill, a lot more tolerant to bending, they dont last a long time, precision of centering in the 4 jaw chuck is not always perfect, but good enough to de the work.

I have also notice tolerance in these 4 jaw inserts, I have many and they are not all perfect.
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Old 26th March 2014, 01:02 PM   #8
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Default about pitures

On my own computer screen they turn upright automatically, but I dont know how they will show on your screen.
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Old 28th March 2014, 06:18 AM   #9
kamis is offline kamis  Serbia
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HSS drills are good for about 20 holes. With a little practice, carbide drills last very long.
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Old 28th March 2014, 06:34 AM   #10
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That's it.
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