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Type: Posts; User: LexD
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17th Apr 2024, 08:29 PM
Thread: Building a "Mongrel" Repeat O Meter.
by LexD- Replies
- 23
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- 1,434
That's it exactly Steve, the links only have...
That's it exactly Steve, the links only have about .005" diametral clearance on the shoulder screws.
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16th Apr 2024, 10:47 PM
Thread: Building a "Mongrel" Repeat O Meter.
by LexD- Replies
- 23
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- 1,434
The U.S. Federal specification calls up 3/8"...
The U.S. Federal specification calls up 3/8" diameter feet. I managed to cut the slot today and then try it out on 3 surface plates with good results, the maximun error I found was a low spot of...
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15th Apr 2024, 11:21 PM
Thread: Building a "Mongrel" Repeat O Meter.
by LexD- Replies
- 23
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- 1,434
Hardened and ground silver steel feet. 405666 ...
Hardened and ground silver steel feet.
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13th Apr 2024, 10:12 PM
Thread: Building a "Mongrel" Repeat O Meter.
by LexD- Replies
- 23
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- 1,434
Almost done now, just the handles and the 4 feet...
Almost done now, just the handles and the 4 feet to go.
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4th Apr 2024, 10:03 PM
Thread: Building a "Mongrel" Repeat O Meter.
by LexD- Replies
- 23
- Views
- 1,434
A bit more progress over the last couple of days,...
A bit more progress over the last couple of days, I also found a nice Pelican type case at Total Tools to store it in.
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1st Apr 2024, 04:28 PM
Thread: The hoisty thing
by LexD- Replies
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SA Is that the same as the “Skyhook” which is made...
Is that the same as the “Skyhook” which is made in America? It looks very similar maybe with another brands label attached.
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1st Apr 2024, 12:51 PM
Thread: Herbert B drill press restoration problem
by LexD- Replies
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Nice job restoring that old Herbert drill, we had...
Nice job restoring that old Herbert drill, we had one in the machine shop at TAA when I worked there. I have a Waldown NH which is probably based on the Herbert design.
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19th Mar 2024, 10:14 PM
Thread: Is it possible to fold this on a panbrake
by LexD- Replies
- 30
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- 1,418
I have used the same H&F folder at work and I ...
I have used the same H&F folder at work and I doubt it will bend 3mm aluminium over the length required, everything on the machine is poorly finished and the balance of the bending leaf is not right...
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17th Mar 2024, 01:20 PM
Thread: Building a "Mongrel" Repeat O Meter.
by LexD- Replies
- 23
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- 1,434
From what I have seen online the genuine Rahn...
From what I have seen online the genuine Rahn repeat o meter uses a Mahr dial indicator with 20 millionths of an inch divisions (.00002"), I don't have one of those but I do have one with .0005"...
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16th Mar 2024, 09:11 AM
Thread: Lathe Spindle Indexer
by LexD- Replies
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- 1,097
Great work Bob, have you used it yet?
Great work Bob, have you used it yet?
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15th Mar 2024, 01:10 PM
Thread: Building a "Mongrel" Repeat O Meter.
by LexD- Replies
- 23
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- 1,434
I finished the top section today and gave it a...
I finished the top section today and gave it a quick test which did confirm that it works well. In the attached video the screw can be seen moving down quite a distance while the gap between the bars...
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11th Mar 2024, 05:51 PM
Thread: Building a "Mongrel" Repeat O Meter.
by LexD- Replies
- 23
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- 1,434
Don't worry too much about the differential...
Don't worry too much about the differential adjustment screw, I am just trying to make it as close as possible to the genuine article, any fine thread will do the job, an ME thread would be my choice...
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11th Mar 2024, 12:37 PM
Thread: Building a "Mongrel" Repeat O Meter.
by LexD- Replies
- 23
- Views
- 1,434
For this application it works more like this:...
For this application it works more like this: https://en.wikipedia.org/wiki/Differential_screw#/media/File:DifferentialScrew.gif
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10th Mar 2024, 10:04 PM
Thread: Building a "Mongrel" Repeat O Meter.
by LexD- Replies
- 23
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- 1,434
Yes, it is a separate piece, the 8mm stud is...
Yes, it is a separate piece, the 8mm stud is reduce to 1/4" diameter on that end and the 12mm piece is drilled and reamed to provide a nice transition fit on it, the two pieces are retained together...
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9th Mar 2024, 05:06 PM
Thread: Building a "Mongrel" Repeat O Meter.
by LexD- Replies
- 23
- Views
- 1,434
Building a "Mongrel" Repeat O Meter.
This may end up being a long term project for me as I don't really need it but I would like to check the general condition of a couple of surface plates that I have. I have studied a lot of home...
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28th Feb 2024, 07:44 PM
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A little know fact about coventry style chasers -...
A little know fact about coventry style chasers - If you sharpen chasers but don't have the measuring gauge simply multiply the number on the front by .003 to get the height required at the tip of...
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28th Feb 2024, 09:22 AM
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I have a couple of sets of left hand chasers,...
I have a couple of sets of left hand chasers, here are a couple of photos to show the difference.
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27th Feb 2024, 10:02 PM
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There are no left hand heads, you just need left...
There are no left hand heads, you just need left hand chasers and run machine in reverse.
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27th Feb 2024, 07:02 PM
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Coventry Die Head Chasers - Left Hand 1/4" UNF to suit 1/2" Head.
Anyone have a spare set?
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26th Feb 2024, 08:55 AM
Thread: Precision ground flat stones
by LexD- Replies
- 23
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- 1,343
I made a set a few years ago using the Rob...
I made a set a few years ago using the Rob Renzetti video as a guide, they work as he describes and have had a lot of use, in fact they are probably due for re-grinding now due to a few scratches and...
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22nd Jan 2024, 09:40 PM
Thread: Small Norton grinding wheels
by LexD- Replies
- 46
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VIC Any of these still available Steve?
Any of these still available Steve?
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21st Jan 2024, 09:02 PM
Thread: Cooling for a enclosure for 2x VFD's
by LexD- Replies
- 19
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- 2,696
I fitted inlet and outlet fans with a thermal...
I fitted inlet and outlet fans with a thermal switch, in the enclosure of the first VFD installation I did about 20 years or more ago for my vertical milling machine, the switch is set to 30...
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22nd Dec 2023, 10:22 PM
Thread: A new crowned pulley for a Waldown TPG.
by LexD- Replies
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- 547
Today I decided to make another pulley slightly...
Today I decided to make another pulley slightly smaller than the last one to slow the spindle down a bit more, this one is 22mm diameter giving a speed of approximately 4350 rpm, which I feel more...
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21st Dec 2023, 11:08 AM
Thread: A new crowned pulley for a Waldown TPG.
by LexD- Replies
- 3
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- 547
The wheels that I have were 6" diameter but I...
The wheels that I have were 6" diameter but I have dressed them down to 5" suit the Waldown, they were rated at 4140 max rpm and tested at 6200 rpm, those figures no longer apply at the smaller...
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20th Dec 2023, 10:05 PM
Thread: A new crowned pulley for a Waldown TPG.
by LexD- Replies
- 3
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- 547
A new crowned pulley for a Waldown TPG.
My Waldown C1 has always run too fast for the 5” wheels that I use, the spindle speed was about 5650 rpm using the correct pulley combination (32mm & 80mm ) this equates to about 7500 surface feet...
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10th Dec 2023, 01:17 PM
Thread: Biax/Bunax making group project
by LexD- Replies
- 177
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- 35,485
Not a lot of progress lately as I wait for...
Not a lot of progress lately as I wait for Australia Post to deliver some material. This is the stroke adjustment access hole.
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7th Dec 2023, 11:28 PM
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I would say that it is of European origin, that...
I would say that it is of European origin, that style of spindle was used by Deckel and other manufactures but I am not sure about a specific name for it.
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7th Dec 2023, 04:09 PM
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My old German vertical mill has that style of...
My old German vertical mill has that style of spindle nose in MT4, I had to make all of my own arbors.
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28th Nov 2023, 09:58 PM
Thread: Biax/Bunax making group project
by LexD- Replies
- 177
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- 35,485
Today I finished the wobble shaft, this will...
Today I finished the wobble shaft, this will allow the stroke to be adjusted from zero to about 16mm.
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26th Nov 2023, 10:18 PM
Thread: Biax/Bunax making group project
by LexD- Replies
- 177
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- 35,485
This thread sort of died out earlier this year...
This thread sort of died out earlier this year and I am not sure how the other guys went with their scraper projects, my Milwaukee conversion was basically finished back then and is working well but...
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12th Nov 2023, 01:04 PM
Thread: Steel plate
by LexD- Replies
- 27
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- 2,628
You will not find anything other than Hot Rolled...
You will not find anything other than Hot Rolled plate in the required size, off the shelf,in Australia, your only option is to have a piece cut to size and then ground to clean up.
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23rd Sep 2023, 06:49 PM
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What is holding it in there?
What is holding it in there?
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22nd Sep 2023, 10:12 PM
Thread: Sheraton SG Restoration
by LexD- Replies
- 26
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- 2,995
If you are game you could try Mig welding, or...
If you are game you could try Mig welding, or tacking really, a small hex nut (maybe M4) to the domed head of the drive rivet. Somehow you need to hold the nut over the head of the rivet while...
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13th Sep 2023, 02:14 PM
Thread: Help with inserts
by LexD- Replies
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- 894
That is a really good delivery time, it takes...
That is a really good delivery time, it takes about another 2 weeks for Aliexpress items that land in Sydney to arrive at my place in Victoria.
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26th Aug 2023, 02:40 PM
Thread: Video: Turning on a mill (no lathe)
by LexD- Replies
- 8
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- 858
While working inside the headstock of my...
While working inside the headstock of my Colchester Lathe I came across one particular circlip that was impossible to remove with standard circlip pliers, the photo and video show how I recut the...
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24th Aug 2023, 02:05 PM
Thread: LH Trapezoid threading inserts
by LexD- Replies
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Laydown threading inserts basically have no...
Laydown threading inserts basically have no clearance, the geometry of the tool holder provides the clearance and some holders have interchangeable carbide seats to tilt the insert to allow for...
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23rd Aug 2023, 01:43 PM
Thread: Ecogoo VFD Error Code
by LexD- Replies
- 8
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- 3,371
Just by comparing readings between them with a...
Just by comparing readings between them with a DMM and finding one that was completely different to all the others. After removing it a final test with a component tester confirmed that it was faulty.
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22nd Aug 2023, 10:56 AM
Thread: Ecogoo VFD Error Code
by LexD- Replies
- 8
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- 3,371
Just a follow up on this thread for anyone with...
Just a follow up on this thread for anyone with this same problem: after replacing one of the six IGBT's with a new item from Aliexpress the drive is now running like new.
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14th Aug 2023, 09:25 PM
Thread: SHERATON CADET Lathe headed to Morwell
by LexD- Replies
- 42
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- 7,561
Current is directly related to Voltage, you can't...
Current is directly related to Voltage, you can't compare a single phase 240 volt motor, to a 3 phase 400 volt motor, purely on the amperage draw on the nameplate..
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11th Aug 2023, 09:51 PM
Thread: SHERATON CADET Lathe headed to Morwell
by LexD- Replies
- 42
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- 7,561
It would be much easier and cheaper to leave the...
It would be much easier and cheaper to leave the original motor, pulley and belt in place and just fit a VFD.
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11th Aug 2023, 01:48 PM
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I think the functions are pretty standard for a...
I think the functions are pretty standard for a milling machine DRO, my old Easson on another machine is very similar.
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10th Aug 2023, 09:14 PM
Thread: Reamer ID?
by LexD- Replies
- 6
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- 980
What is the diameter of the reamer?
What is the diameter of the reamer?
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12th Jul 2023, 09:51 PM
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It's a Yihao (YH) model YH800-3 from Aliexpress.
It's a Yihao (YH) model YH800-3 from Aliexpress.
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12th Jul 2023, 07:38 PM
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Yes the Clecos will be gone soon, now that I know...
Yes the Clecos will be gone soon, now that I know everything fits together properly.
I like the way this DRO displays the PCD function.
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12th Jul 2023, 06:05 PM
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A couple more photos as things progress. ...
A couple more photos as things progress.
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11th Jul 2023, 10:58 PM
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A new control panel for an old milling machine.
I have a Beaver milling machine that is 45 to 50 years old and only had a basic fwd/off/rev switch and as part of the VFD upgrade I decided to make a new control panel with a built in VFD. The box is...
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7th Jul 2023, 02:49 PM
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You have to read some of the labelling on tools...
You have to read some of the labelling on tools very carefully John, althought they might mention Germany it does not necessarily mean that the product was made there. This guy tested the Walter...
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6th Jul 2023, 07:00 PM
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Hi John, does it actually have "Made in Germany"...
Hi John, does it actually have "Made in Germany" on it? It looks like a generic Chinese wrench produced for many different tool suppliers.
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27th Jun 2023, 06:44 PM
Thread: Your latest project
by LexD- Replies
- 3,019
- Views
- 1,554,478
Sticky: Are you only doing the lightening holes or did...
Are you only doing the lightening holes or did you make the actual ribs?
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26th Jun 2023, 11:17 PM
Thread: Your latest project
by LexD- Replies
- 3,019
- Views
- 1,554,478
Sticky: Nice job and tough to do joggles like that,...
Nice job and tough to do joggles like that, unless the material is in the annealed condition?