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Member postings for KWIL

Here is a list of all the postings KWIL has made in our forums. Click on a thread name to jump to the thread.

<< First < Prev 177 178 179 180 181 182 183 184 185 Next > Last >>
Thread: Myford ml7 clutch
18/01/2010 16:22:14
I have the plans also if required, they would scan to 10 off A4
Thread: Tachometer design
17/01/2010 16:26:21
I have 4 machines using inverters. I have a 10 turn speed setting linear potentiometer on each. On the Myford S7 for example, if I choose a particular pulley setup, then 50%  [indicated by 50 on the dial] does in fact give me half way up the speed range. I have checked the speeds using strobe disc as [published in MEW some time ago] and latterly using a strobe meter.  Frankly you do not need an exact speed setting anyway, but this method is very close. If you only have coarse < 1 turn dial as fitted on some commercially available kits then a tacho could be useful.
 
In normal use I can get within a few percent of any desired speed without having a digital readout.
 
Regards
 
K
Thread: Assistance with ZAY7045FG/1 Milling Machine
17/01/2010 10:21:53
Hi Ken
Test post by administrator.
regards David
Thread: Quality of Castings
12/01/2010 09:47:58
Also see www. Homeworkshop.org website for Foundry ads
Thread: Milling cutters with screwed shanks
08/01/2010 09:56:59
It should also be said that the Clarkson system also relies on the rear threaded end being centralised by the center inside the Clarkson Autolock holder.
Thread: Lathe, lowest speed?
06/01/2010 20:37:32
If you fit a three phase motor and use an Inverter you can run it as slow as you like, provided that you watch the motor temperature. I use an almost stopped speed to clock under power.
Thread: Making a Z-Axis DRO on the cheap
06/01/2010 12:24:48
These setups are fine if you remember the accuracy [ or lack of]  such devices leave much to be desired. See the parallel discussions elsewhere on that matter, better than nothing at all of course.
Thread: MT3 TO MT2 OPEN SLEEVE
04/01/2010 21:09:49
For a start, do not hit it!
 
You will need to make something with an internal thread, long draw bar? to bring up behind the offending sleeve, only big enough to bear against the 2MT end only.  On the outer end and against the 3MT  containing shaft a cylindrical sleeve. A large thick washer and a long bolt through the your new "draw bar" . Hopefully by tightening the bolt you will draw out the sleeve. Makes sense?
 
 
Thread: Suds vs neat cutting oil
03/01/2010 13:59:59
I am a nothing or neat oil user. The problem with soluble oils as JC refers to is the chance of bacterial action, not the visible kind but that which happens out of sight under the vice, toolpost stc. It is not always possible to clean down thoroughly after first use, if you have to leave a job part completed, especially in the mill. So its neat oil for me. I use mainly insert tools and they quite like it dry!
Thread: Microscope objective thread
02/01/2010 19:18:24
Circlip,
 
Not always true, look at the thread on a metric Clarkson milling cutter, yes its pitch is English tpi!!
02/01/2010 19:16:11
RMS thread is whitworth form, ie 55 degrees.
Thread: HTS Bolts
01/01/2010 16:42:28
Use a CORRECTLY SIZED ring or combination spanner, use your fingers and NOT your hand to tighten, that should be about right. NEVER use a socket and bar, that is staring disaster in the face
Thread: Model Engineer 4368
31/12/2009 14:07:03
Arrived here in NE Hants, Noon today 31st December
Thread: HTS Bolts
31/12/2009 14:05:04
I know a lathe supplier who observed to me, if people use non OEM T-nuts, I end up selling them a new T slotted .....  The moral being, they must fit properly and be of the right size, Circlips got it right .
 
The use of a nut + washer to pull up the T-nut squarely is perhaps a better way of ensuring that the undersides remain in place and the T-nut+bolt combination does not slide about
31/12/2009 11:32:23
I am very careful about what I use in the T slot, I prefer the proper t-nuts because I have seen the damage done by others to the underside of the  "T"  by too small a bearing area.
31/12/2009 10:11:04
It is not clear whether you intend to shape the heads to fit the T slots? Why use HTS for this job? 
I have previously use HTS bolts to provide spindle material for a Quorn and Quick Step Mill, turning it with normal idexable insert tooling without undue difficulty.

Edited By KWIL on 31/12/2009 10:32:42

Thread: Myford Super7 Leadscrew Accuracy problem
31/12/2009 10:05:48
I agree with Richmond, the common digital calipers are only useful for an indication. The internal scale is only a printed circuit board.  Checking metal in a rack when you cannot get close in, they might tell you whether it is 10mm or 0.375" [3/8"]..  Even the Mitutoyo at 0.02mm per 200mm (not 200m Jason!) is a whole 0.0008" out. nowhere near a micrometer standard.
29/12/2009 20:14:02
The real problem in using a Digital Caliper is that you do NOT know their accuracy, they only tell you the resolution, ie it appears to read in 0.001" etc  I have yet to see any accuracy  figures stated for these devices.
Thread: H Clarkson Castings
29/12/2009 16:43:54
Which means??
Thread: Myford Super7 Leadscrew Accuracy problem
29/12/2009 15:51:03
Nick,
 
Read your Messages
 
K
<< First < Prev 177 178 179 180 181 182 183 184 185 Next > Last >>
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