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Modding Drills
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andrew



Joined: 16 Jun 2004
Posts: 3110
Location: Castle Hill, Sydney. N.S.W


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last time i had drill issues as in chuck being screwy i simply as andrew said put a large allen key in chuck but the entire drill was still together, i clamped drill in a vice and with a hammer i very suddenly and swiftly hit the allen key, the sudden jerk and force was enough to free the chuck and it unscrewed
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Post Mon Sep 11, 2006 9:28 pm 
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Totaly_Recycled
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Joined: 15 Jun 2004
Posts: 1346


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It sounds like he has removed the clutchsprings and balls ect so the shaft will just be spinning free with nothing to torque against and he probaly doesnt have room to put in grub screws if the bits of clutch housing are still between the chuck and the gear box housing in the way .

Post Mon Sep 11, 2006 9:33 pm 
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Grassy



Joined: 19 Apr 2006
Posts: 241
Location: Eastwood, Sydney (near Ryde)


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Thanks, i have enough room to put in the grub screws but it's REEEEEEEALY difficult
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Post Tue Sep 12, 2006 8:05 am 
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Damien (not Damian)



Joined: 15 Sep 2005
Posts: 327
Location: The other side of The Wall...Melbourne


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I just put in normal screws that were 5mm across and sawed off the excess. Then I had more screws for the second drill motor. It works perfectly.

NOTE:I HAVE tried this idea. Is it supposed to only move 90 degrees if you turn the shaft really gently?
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Post Sun Sep 17, 2006 7:11 am 
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Fish_in_a_Barrel



Joined: 30 Sep 2006
Posts: 673
Location: Perth, Western Australia


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If you left the clutch intact would that make the motor more reliable in a spinning weapon?

Post Sun Oct 29, 2006 11:19 am 
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dyrodium
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Joined: 24 Aug 2004
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Location: Sydney


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It would make it slip, so I guess it would. I believe BudgetBot used a drill with the clutch for its flail weapon. Smile
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Post Sun Oct 29, 2006 12:28 pm 
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NMO
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Joined: 16 Jun 2004
Posts: 486
Location: Melbourne


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Our first Robot No. 5 we had the drill clutch still connected and one problem that did arise was that the clutch had a habbit of moving by itself during operation so that in the end you ended up with a clutch that wouldn't stop slipping.

Post Sun Oct 29, 2006 1:06 pm 
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Nick
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Joined: 16 Jun 2004
Posts: 11799
Location: Sydney, NSW


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Drill motors are a terrible choice to drive a weapon - the RPM is too low, the gearbox can't take the shock and the output shaft bends easily. For the same or less cost, you can get a car fan motor that will last and do a far better job.
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Post Sun Oct 29, 2006 1:40 pm 
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Daniel
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Joined: 30 Aug 2005
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Location: Gold Coast


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quote:
Originally posted by dyrodium:
It would make it slip, so I guess it would. I believe BudgetBot used a drill with the clutch for its flail weapon. Smile


The clutch on Budget Bot's drill motor was locked.

Post Sun Oct 29, 2006 2:59 pm 
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dyrodium
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Joined: 24 Aug 2004
Posts: 6476
Location: Sydney


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Even so, the nature of the weapon meant not much impact could be transfered to the gearbox.
But Nick's right, if you want more than a small flail... get a fan motor. Smile
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Post Sun Oct 29, 2006 3:01 pm 
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marto
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Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


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I think it still had the orginal clutch on it but it was held in place by a couple of hose clamps. It basically just was a drill without its case still had chuck n clutch. And it only lasted for one event and I went through 2 gearboxes and 3 motors. Mind u it was easy at the time and prolly worked the best out of anything I've built.
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Post Sun Oct 29, 2006 3:56 pm 
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Glen
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Joined: 16 Jun 2004
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Location: Where you least expect


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Cool schweeet
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Post Fri Dec 01, 2006 12:27 pm 
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Knightrous
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Joined: 15 Jun 2004
Posts: 8492
Location: NSW


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Rob Purdy from Team Cosmos was talking to Andrew about how he did his drill mods and that is the result.... Wink Now if everyone buys a bunch of Andrew mods, Andrew can buy a milling machine and produce those ones as well Razz
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Post Fri Dec 01, 2006 12:44 pm 
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Glen
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Joined: 16 Jun 2004
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Location: Where you least expect


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where do i send donations xD
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Post Fri Dec 01, 2006 12:54 pm 
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Nick
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Joined: 16 Jun 2004
Posts: 11799
Location: Sydney, NSW


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That is seriously cool! I want a set (or two). Looking at the parts, you would need a lathe and a mill with either a rotary table or a DRO to make that gear carrier. I wonder if this could be done for the Banebots/Whyachi motors?
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Post Fri Dec 01, 2006 7:01 pm 
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