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Home Workshop > Members > Forum > Information Area > Information > Rise and fall for Fobco pillar drill

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Rise and fall for Fobco pillar drill

Rise and fall for Fobco pillar drill

I have had my Fobco pillar drill for some years and am very happy with this high quality machine. However I am frustrated by the lack of a rise and fall mechanism for the table - especially as I usually have a co-ordinate table on this as well. I have been using a modified ACRO prop as a jack for the table, but this is not really satisfactory. Has anyone out there produced a better mod for their drill to raise and lower the table? ( I have seen Tubal Cain's mod using a counter weight within the drill column, but this cannot be used with the solid column on the Fobco)
Adam.

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Re: Rise and fall for Fobco pillar drill

You've grabbed my interest Adam!  Can you lead me to where the Tubal Cain mod can be found please?  My Startrite drill does have a tubular column!
Are we talking Tubal Cain = Tom Walshaw?  Or the American YouTube man?  I have a number of T D Walshaw's books but don't recall this topic.
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Re: Rise and fall for Fobco pillar drill

Hi I have added rise and fall to my Meddings drill. I did it using a rack and table mounted gearbox from a  Taiwanese clone drill. In essence I made the rack push up the table from underneath adjacent to the column in exactly the same way that the correct parts from a meddings drill work.  On the donor drill the table and gearbox move by having a captive rack what you need is the reverse a captive gearbox and a moving rack. I can send  photos if you want.  Suppose you could do it with an old fashioned tubular car jack the type that has a winding handle at 90 degrees to the jacking part.
Ashley

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Re: Rise and fall for Fobco pillar drill

Hello Geoff,
This was from the American version! I cant quite remember how I came across it on youtube, but he shows a neat system with a long solid bar weight within the column connected by a chain running over a pulley at the top of the column to an eyebolt on the rear of the table mounting. The only criticism I would have is that the chain used does not look very strong. Well worth a look.
Adam

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Re: Rise and fall for Fobco pillar drill

Hello Ashley,
That sounds interesting, I was wondering about using parts from a cheaper drill. I would very much like a couple of photos of your modifications.
My current arrangement using an ACRO prop as a jack under the table has its limitations, perhaps the most annoying being that the load is supported at the centre of the table and the distance of this from the column sometimes causes binding.

My email address is:    This e-mail address is being protected from spambots. You need JavaScript enabled to view it

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Re: Rise and fall for Fobco pillar drill

Use one or two gas struts, cheapest method.

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Re: Rise and fall for Fobco pillar drill

Hello Again Geoff. Search on youtube for:   Counterweighting a drill press table
Adam

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Re: Rise and fall for Fobco pillar drill

Adam,

Whatever table raising mechanism you add, it will not help you with your co-ordinate table issue. For this you need to key the table to the column. This issue and its solution has been extensively discussed in relation to round column milling machines.

For ideas on the table raising mechanism, have a look at  http://www.lathes.co.uk/meddingsdrills1960/ and http://www.lathes.co.uk/startrite-efi/.

There's a video on YT of someone who made a plasterboard (drywall) raising device where he used threaded rod instead of a rack and free hobbed the pinion using a tap. This might be a good way to proceed.

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