Re: [CAD_CAM_EDM_DRO] welding linear shafts

If you cut those weight reduction holes in the bottom of the rectangular
tube base first, you 'll be able to reach in there with your hand and use a
regular allen wrench.

Smoke
-----Original Message-----
From: diazden <diazden@...>
To: CAD_CAM_EDM_DRO@egroups.com <CAD_CAM_EDM_DRO@egroups.com>
Date: Thursday, November 30, 2000 11:19 PM
Subject: Re: [CAD_CAM_EDM_DRO] welding linear shafts

>May I add my 2c worth on this matter
>Over the years that I have been on the trade many times I have to drill and

tap thru

>case harden material, it is easy , just go below the hardened skin with a

drill bigger

>than the size of the bolt that you are going to use then use a normal drill

and tap,

>if I m going to make this lathe I will drill and tap the linear bars ( now

I remember

>that I have seen linear shaft that come already tapped) ,and then I will

drill the support

>tees clearance size on that bolt also I will drill the square tube that is

the machine

>bed right thru with a hole pattern that matches the hole pattern of the

linear shaft

>but with a hole on the bottom bigger to allow for a extension allen key to

pass thru

>to allow the bolts to be tighten.
>hope that this is of help to same one
>mariano
>
>
>JanRwl@... wrote:
>
>> In a message dated 29-Nov-00 18:02:23 Central Standard Time,
>> jmelson@... writes:
>>
>> >
>> > Yup, you're right, this would be a horrible problem to solve. The real
>> > linear bearing
>> > shafts are centerless ground, and are extremely straight and

consistently

>> > round
>> > and to correct diameter. I can't imagine how you would keep them in

that

>> > shape
>> > after a welding process. Right around the weld regions, they'd be
>> > distorted, and
>> > trying to straighten them would put all sorts of little bumps and

ripples

>> > around
>> > the welds. Why don't YOU drill the holes? You could use solid carbide
>> > drills,
>> > or maybe even do a little heat treating right at the location of the

hole

>> > to anneal
>> > the rod.
>> >
>> > Jon
>> >
>> >
>> >
>>
>> 100% CORRECT!
>>
>> [Non-text portions of this message have been removed]
>>
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>
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