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29th August 2015, 05:33 PM
Thread: New power for mini mill???
by cba_melbourne- Replies
- 11
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- 1,268
Its not rubber. It is a Gates Polyflex 5M Micro-V...
Its not rubber. It is a Gates Polyflex 5M Micro-V belt made of endlsess (not spliced) reinforced Polyurethane. Resistant to solvents etc, exactly the same that is probably used in your car and...
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29th August 2015, 04:54 PM
Thread: New power for mini mill???
by cba_melbourne- Replies
- 11
- Views
- 1,268
The Sieg X3 is a mill. Yes, its my primary mill.
The Sieg X3 is a mill. Yes, its my primary mill.
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28th August 2015, 09:09 PM
Thread: Oxy Cyinders - Purchase
by cba_melbourne- Replies
- 30
- Views
- 4,921
Stuart, that was me. And no, things do not get...
Stuart, that was me. And no, things do not get hot or cold if you allow about 10 to 15 minutes for the transfer. The donor cylinder does not get cold enough to show condensation. The receiver...
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28th August 2015, 12:26 AM
Thread: New power for mini mill???
by cba_melbourne- Replies
- 11
- Views
- 1,268
http://www.homemodelenginemachinist.com/downloads/...
http://www.homemodelenginemachinist.com/downloads/files/X3_VFD_Part1_version2.pdf
http://www.homemodelenginemachinist.com/downloads/files/X3_VFD_Part2_version2.pdf -
23rd August 2015, 11:31 PM
Thread: New power for mini mill???
by cba_melbourne- Replies
- 11
- Views
- 1,268
That two part article was from me. Ask if you...
That two part article was from me. Ask if you need to know more detail.
1/2 hp vector VFD is in my opinion plenty of power for the weight and rigidity of an X3.
I used a 3-speed Polybelt... -
21st August 2015, 07:15 PM
Thread: Extracting wooden fence posts
by cba_melbourne- Replies
- 44
- Views
- 3,024
I am on clay soil too. In summer the soil recedes...
I am on clay soil too. In summer the soil recedes and wide cracks open everywhere. The soil rectracts leaving about 10mm of air all around wooden posts. That is the season when the posts can be...
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21st August 2015, 07:02 PM
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- 31
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- 9,060
My experience on tapered threads: - I apply...
My experience on tapered threads:
- I apply teflon tape, then smear a light coat of Stag paste over the teflon tape just before putting together (Stag paste dries very fast. If you allow it to dry... -
20th August 2015, 10:33 PM
Thread: Extracting wooden fence posts
by cba_melbourne- Replies
- 44
- Views
- 3,024
Agree, but it needs to be more than a compact...
Agree, but it needs to be more than a compact tractor, or the front wheels will lift off the ground without the post moving. The best is to do this sort of job in summer when the soil is dry and has...
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20th August 2015, 10:24 PM
Thread: X2 electrical experience??
by cba_melbourne- Replies
- 5
- Views
- 793
If the speed control is tested fine, and the...
If the speed control is tested fine, and the overload light comes on, chances are the motor has a problem. Sieg makes their own brushed DC permanent magnet (PM) motors. From my experience with my X3,...
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20th August 2015, 10:44 AM
Thread: QCTP brand ?
by cba_melbourne- Replies
- 15
- Views
- 1,622
This is the link to the manufacturer "Rapid...
This is the link to the manufacturer "Rapid Original" near Milan in Northern Italy:
http://www.rapidoriginal.it/
They also sell under the name "GFB Universal - since 1948" and "GFB Special... -
19th August 2015, 09:14 AM
Thread: 0.3 Module Gear Cutting Query
by cba_melbourne- Replies
- 90
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- 6,631
A very worthwile project is to fit a stepper...
A very worthwile project is to fit a stepper motor to your rotary table with an electronic divider box. It will let you choose any number of divisions (and much more). You then can then sell your old...
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18th August 2015, 07:19 PM
Thread: 0.3 Module Gear Cutting Query
by cba_melbourne- Replies
- 90
- Views
- 6,631
Bob, here is a set of 8 M0.3 involute Module gear...
Bob, here is a set of 8 M0.3 involute Module gear cutters from Belarus - US$80 is quite a bargain, less than $9 each and postage is free:...
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9th August 2015, 12:13 PM
Thread: DRO Advice
by cba_melbourne- Replies
- 20
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- 1,703
Some DRO let you add the readings of two scales...
Some DRO let you add the readings of two scales and show the result on one display. On my mill (different make from yours) I have installed two Z scales. On on the quill, the other on the column. The...
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8th August 2015, 07:47 PM
Thread: Lathe felt
by cba_melbourne- Replies
- 11
- Views
- 1,251
If you have an old Akubra hat... its excellent...
If you have an old Akubra hat... its excellent very high density felt and cuts easily without fraying out. You have to cut 3 or 4 pieces and double them up to the required thickness. Use a punch if...
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8th August 2015, 07:29 PM
Thread: 3 phase Chinese diesel genset issue
by cba_melbourne- Replies
- 4
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- 797
I had a Chinese 3phase 5KVA silenced diesel...
I had a Chinese 3phase 5KVA silenced diesel generator. Was test running it with a 2.4kW@ heater. After about 45minutes it failed. One of the three stator windings had shorted. If one phase is...
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7th August 2015, 08:33 PM
Thread: Bin Fodder or Repairable
by cba_melbourne- Replies
- 11
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- 1,289
Mill finish, that is how the compound base is...
Mill finish, that is how the compound base is when new. Myford is just a good quality hobbylathe. Not a Schaublin or a Hardinge that costs 5 times more.
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19th July 2015, 09:02 PM
Thread: New lathe selection help
by cba_melbourne- Replies
- 52
- Views
- 10,951
Yes you can turn small pieces on a large lathe....
Yes you can turn small pieces on a large lathe. But unless its in the price class of a Hardinge AND well maintained and looked after, its probably not going to be much joy doing so. Tactile feedback...
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18th July 2015, 09:26 PM
Thread: New lathe selection help
by cba_melbourne- Replies
- 52
- Views
- 10,951
Nowdays camlock TS have become a standard feature...
Nowdays camlock TS have become a standard feature for hobbylathes above $1k. But only 5 years ago, there were many below $2K lathes that did not have this feature. It does in no way affect accuracy...
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18th July 2015, 09:11 PM
Thread: New lathe selection help
by cba_melbourne- Replies
- 52
- Views
- 10,951
Read, think, write The OP did say in his very...
Read, think, write
The OP did say in his very first post:
> I have considered second hand but the following concerns me:
> Spare parts availability, no warranty, Distance traveled to then
>... -
18th July 2015, 08:53 PM
Thread: New lathe selection help
by cba_melbourne- Replies
- 52
- Views
- 10,951
It refers to the way how the tailstock is clamped...
It refers to the way how the tailstock is clamped to the bed. With hobbylathes, the cheapest models clamp the tailstock with a nut and a spanner. Intermediate models replace the spanner with a lever...
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18th July 2015, 08:49 PM
Thread: New lathe selection help
by cba_melbourne- Replies
- 52
- Views
- 10,951
- The Heerless lathe on your Gumtree link for...
- The Heerless lathe on your Gumtree link for $1.8K is indeed Taiwanese from the 80's (Heerless is since 2002 Hare&Forbes, they probably can still provide most parts). On the pictures it does not...
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18th July 2015, 09:22 AM
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- 5
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- 810
It depends a lot on your circumstances. A -...
It depends a lot on your circumstances.
A - If your compressor is an "oilfree" type, then there is to begin with no oil at all in your air system, not even in the receiver vessel.
B - If your... -
16th July 2015, 05:21 PM
Thread: Just using what you have.
by cba_melbourne- Replies
- 10
- Views
- 1,420
There is nothing critical with making these. You...
There is nothing critical with making these. You will be fine without surface plate and without any need for scraping. You may have to rough out the castings all around before finishing to avoid...
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13th July 2015, 07:10 AM
Thread: Lathe alignment bar
by cba_melbourne- Replies
- 76
- Views
- 6,699
The ways of Chinese lathes are ground, not as...
The ways of Chinese lathes are ground, not as fine a finish as on western lathes, but ground. That is where the Headtock sits on.
The bottom of the headstock of chinese lathes is usually just... -
11th July 2015, 11:50 PM
Thread: Lathe alignment bar
by cba_melbourne- Replies
- 76
- Views
- 6,699
Yes the Chinese test bars on eBay are all...
Yes the Chinese test bars on eBay are all specified 0.01mm. That is sufficient to achieve Schlesinger standards which I think (I did not lkook it up) is something around 0.02mm/200mm. Mind you,...
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11th July 2015, 04:08 PM
Thread: Lathe alignment bar
by cba_melbourne- Replies
- 76
- Views
- 6,699
Pete, I did it without a test bar. First I tried...
Pete, I did it without a test bar. First I tried the RDM method but gave up on it. Then the good old spool method. It took me several days, the best part of a week. That is why I can say with...
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11th July 2015, 03:34 PM
Thread: Lathe alignment bar
by cba_melbourne- Replies
- 76
- Views
- 6,699
I have to disagree. Importers only import what...
I have to disagree.
Importers only import what their customers want and buy. Else the importer goes fast out of business. Customers want cheap. Not value, not perfection, only plain cheap. Just... -
11th July 2015, 10:16 AM
Thread: Lathe alignment bar
by cba_melbourne- Replies
- 76
- Views
- 6,699
Yes, headstock torque shimming is bodging. But...
Yes, headstock torque shimming is bodging. But the sad reality is, that nearly all these low cost hobbylathes ARE built like this. How else could you manufacture a 9" lathe for under $1000, or a...
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10th July 2015, 11:26 PM
Thread: EMCO Compact 8
by cba_melbourne- Replies
- 5
- Views
- 1,451
What about the Frech version?...
What about the Frech version?
https://onedrive.live.com/view.aspx?resid=547FE296ECFD561F!319&cid=547fe296ecfd561f&app=Pdf
Seriously, I have not come across a free C8 user manual copy in the past... -
10th July 2015, 10:44 PM
Thread: Lathe alignment bar
by cba_melbourne- Replies
- 76
- Views
- 6,699
So you have never torque shimmed a headstock,...
So you have never torque shimmed a headstock, have you?
The OP has a low cost Chinese lathe with a headstock that wobbles on the bed. He needs good advise on how to best handle this. Not fantasy... -
10th July 2015, 10:33 PM
Thread: Huanyang 24v line and tachometer
by cba_melbourne- Replies
- 17
- Views
- 1,849
Ian, maybe the hall sensor is for an RPM meter...
Ian, maybe the hall sensor is for an RPM meter then?
Anyway, it is not recommended to use an internal VFD power supply for anything not directly related to the VFD operation itself. The reasons... -
10th July 2015, 09:32 PM
Thread: Huanyang 24v line and tachometer
by cba_melbourne- Replies
- 17
- Views
- 1,849
I think the Huangyang 24VDC output is rated for...
I think the Huangyang 24VDC output is rated for 0.1A only. If your tacho draws less than that, and no other 24V loads are attached, you could be fine.
I did not know their VFD's were accepting... -
10th July 2015, 04:09 PM
Thread: Lathe alignment bar
by cba_melbourne- Replies
- 76
- Views
- 6,699
Actually, Rollies Dad proposed this method...
Actually, Rollies Dad proposed this method explicitely and only to untwist the bed, without needing to own a precision level and a test bar.
An undisturbed and correct headstock alignment is... -
10th July 2015, 03:58 PM
Thread: Lathe alignment bar
by cba_melbourne- Replies
- 76
- Views
- 6,699
You have never aligned a headstock that required...
You have never aligned a headstock that required the torque shimming method, have you? There is no point before you have made this experience yourself.
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10th July 2015, 11:29 AM
Thread: Lathe alignment bar
by cba_melbourne- Replies
- 76
- Views
- 6,699
Yes, you can first align the headstock in the...
Yes, you can first align the headstock in the horizontal plane until both spools have the same diameter, then align it vertically until the indicator clocks the same on top of the spools whilst...
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9th July 2015, 11:37 PM
Thread: Lathe alignment bar
by cba_melbourne- Replies
- 76
- Views
- 6,699
- The two collar method bases on the assumption...
- The two collar method bases on the assumption that the headstok has been accurately scraped to the bed. To verify this assumption, a test bar is needed.
- Colchesters are expensive lathes and... -
9th July 2015, 08:38 PM
Thread: Lathe alignment bar
by cba_melbourne- Replies
- 76
- Views
- 6,699
That is about the one and only lathe adjustment...
That is about the one and only lathe adjustment that really, absolutely, requires the use of a test bar as in practice it cannot be done without. But only once. Once that headstock is aligned, there...
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9th July 2015, 05:52 PM
Thread: How to size used drills
by cba_melbourne- Replies
- 21
- Views
- 2,317
I always measure at the very tip of the drill,...
I always measure at the very tip of the drill, right across the ends of the flutes with a vernier caliper. That is what matters most for the bore diameter.
Some of those drill shafts look pretty... -
9th July 2015, 05:38 PM
Thread: Lathe alignment bar
by cba_melbourne- Replies
- 76
- Views
- 6,699
The general consensus is to use a test bar that...
The general consensus is to use a test bar that directly fits your spindle taper.
That said, it depends what you want to do with it. What sort of accuracy are you chasing? How often would you use... -
8th July 2015, 09:56 PM
Thread: Metal Bandsaws.
by cba_melbourne- Replies
- 28
- Views
- 2,770
There are subtle but in my opinion important...
There are subtle but in my opinion important differences between the 6x4 bandsaws made in Taiwan, and those made in China. Not only fit and finish. You only see these differences when comparing close...
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7th July 2015, 06:22 PM
Thread: Seeking a Source of M 10 Nuts .
by cba_melbourne- Replies
- 20
- Views
- 2,863
Bob, - the old German DIN934 standard has been...
Bob,
- the old German DIN934 standard has been withdrawn long ago
- the international standard ISO4032 (in Europe EN4032) replaces the old DIN934 standard
- M10 nuts to ISO4032 differ from... -
6th July 2015, 10:59 PM
Thread: Metal Bandsaws.
by cba_melbourne- Replies
- 28
- Views
- 2,770
And you have a lathe and a mill. Meaning that...
And you have a lathe and a mill. Meaning that over the years you will cut quite a bit of thick plate and bar. A 6x4 bandsaw is what you need, like the H&F BS-4 or BS-5. It can be used horizontally...
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5th July 2015, 01:53 PM
Thread: Metal Bandsaws.
by cba_melbourne- Replies
- 28
- Views
- 2,770
If it does not have to be portable, the cheapest...
If it does not have to be portable, the cheapest recommendation has to be the BS-4A from H&F. Its the one I have had for the past 10+ years. Get a bi-metal blade with it. There is plenty of online...
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4th July 2015, 12:42 PM
Thread: Bit Storage
by cba_melbourne- Replies
- 30
- Views
- 3,322
I have found that some of the best quality (not...
I have found that some of the best quality (not the cheapest soft stuff) kitchen cutting boards are made from a material that can be used to substitue expensive engineering material sheet. Maybe next...
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3rd July 2015, 10:24 PM
Thread: Bit Storage
by cba_melbourne- Replies
- 30
- Views
- 3,322
> I got more 2 flute-Slot Drills than I did 4...
> I got more 2 flute-Slot Drills than I did 4 Flute End mills. Can I assume that the 4 Flute therefore gives a better surface finish than the two, based on the description Bollie gave??
The more... -
3rd July 2015, 05:39 PM
Thread: Bit Storage
by cba_melbourne- Replies
- 30
- Views
- 3,322
351507 The wooden blocks are made from hardwood...
351507
The wooden blocks are made from hardwood cutoffs (left over when making new door jambs) - or whatever nice wood scrap is at hand. These are about 20mm thick planks. I glue tree of them... -
2nd July 2015, 02:41 PM
Thread: Large Engineering Squares
by cba_melbourne- Replies
- 8
- Views
- 940
Depends what you use it for. The errors are...
Depends what you use it for. The errors are cumulative. A 300mm long square to DIN 875/2 is allowed to have a straightness error of 20um plus an angle error of 50um. That is an allowed total error of...
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28th June 2015, 05:19 PM
Thread: Vices Size?
by cba_melbourne- Replies
- 13
- Views
- 1,487
Not much room left between the top of that vise...
Not much room left between the top of that vise and the collet.
- The SX3 already has a tilting head. The tilting feature of that vise is therefore not much useful, it just reduces your distance... -
23rd June 2015, 11:11 PM
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- 12
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- 2,181
The Toyo is a Japan made metric lathe with a...
The Toyo is a Japan made metric lathe with a proprietary spindle nose. Toyo is no more in business, but the German Proxxon did take over the Toyo designs. You can buy a Proxon chuck off the shelf to...
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23rd June 2015, 12:55 PM
Thread: 2hp VSD on 1/2 hp motor
by cba_melbourne- Replies
- 3
- Views
- 853
When configuring, you simply tell the VFD that...
When configuring, you simply tell the VFD that the motor is 1/2HP, and its nameplate current rating. The VFD will then properly protect your motor and limit its maximum current/power to it.
There...