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Results 16 to 30 of 37
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1st April 2012, 10:47 PM #16
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1st April 2012, 11:11 PM #17.
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- Nov 2008
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- Perth WA
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It's all falling on deaf ears Boys.
I might just knock up a drawing. If it prevented even one injury it would be worth the trouble.
BT
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2nd April 2012, 07:48 AM #18Philomath in training
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- Oct 2011
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- Adelaide
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- 59
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I'll go for $30.
I had a thought that if I had a close fitting sleeve on the column it would allow it to slide up and down and then due to the reaction force from the clamp it would lock in place.
Also, that cam operated clamp is a nice low profile thing, but a toggle clamp could probably serve as an alternative. There may be an alternative brewing (if I can find a toggle clamp & sleeve & time & ...)
Michael
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2nd April 2012, 10:00 AM #19SENIOR MEMBER
- Join Date
- Oct 2007
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- Sydney
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- 2,324
I wonder if in practice enough force would be generated through that sleeve to resist the torque if the drill grabbed, particularly given the table flex and general lack of rigidity in the typical machines we have. One it started to go, there would then be effectively nothing to hold the piece at all. May be a case of something appearing secure, but leading to a false sense of security should anything really happen.
I think if you were to build one, it wouldn't be that much more effort to simply drill and tap a tab on the back where a handle could positively secure the whole thing.
Pete
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2nd April 2012, 10:17 AM #20.
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- Nov 2008
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- Perth WA
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- 71
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Pete,
It is possible to wriggle a plate under the clamp. I'm pretty sure that it's only designed for light drilling and in use I would also use my left hand to hold the workpiece.
Bob.
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2nd April 2012, 11:35 AM #21GOLD MEMBER
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- Jul 2010
- Location
- Melbourne
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- 7,770
I'd think you'd still want a "stop pin"(thats just made up term, a nut and bolt through one of the tee slots for the work to rest against to stop it rotating). Then BTs clamp to hold it down. Of course it depends a lot on what you are drilling. I assume I dont have to go into drilling holes in sheet metal holding the work with your hand?
Stuart
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2nd April 2012, 03:15 PM #22.
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- Nov 2008
- Location
- Perth WA
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- 71
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- 5,641
Prima Apart.
The green paint is off. The device was originally painted dark grey.
I'm missing one spring clip. Any suggestions of where I might find a replacement?
BT
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2nd April 2012, 05:02 PM #23GOLD MEMBER
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- Oct 2010
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- melbourne, laverton
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- 1,443
talking of waldowns .bob have you ever seen a variable speed waldown. Expanding pulley type?
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2nd April 2012, 05:09 PM #24GOLD MEMBER
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- Jul 2010
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- Melbourne
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2nd April 2012, 05:12 PM #25.
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- Nov 2008
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- Perth WA
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- 71
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Thank you Stu.
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2nd April 2012, 05:14 PM #26GOLD MEMBER
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- Jul 2010
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- Melbourne
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Careful BT, you might find yourself having one or two of them yourself soon enough.
Stuart
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2nd April 2012, 05:31 PM #27GOLD MEMBER
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- Oct 2010
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- melbourne, laverton
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hi bob and Stuart. i use one regularly.
its a full height drill. with the same shape spindle head.
As most the other waldowns you see. the belt cowling
is steel sheet metal. with square sides painted yellow.
protruding out of the top is a 3 spiked hand wheel that
you turn to raise and lower the spindle speed.
from slow to very fast.
its a great to use unfortunately the Morse taper needs work.
as it can drop the chuck when the drill catches.Last edited by azzrock; 2nd April 2012 at 05:33 PM. Reason: spelling
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2nd April 2012, 05:58 PM #28GOLD MEMBER
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- Jul 2010
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- Melbourne
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- 7,770
Hi Aaron,
I think I speak for Bob when I say "Where are the pictures?" (and for myself also)
Stuart
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2nd April 2012, 06:13 PM #29.
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- Nov 2008
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- Perth WA
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- 71
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2nd April 2012, 06:59 PM #30GOLD MEMBER
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- Oct 2010
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- melbourne, laverton
- Posts
- 1,443
ill try post some this week.