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23rd August 2015, 09:53 PM
Thread: New power for mini mill???
by mahgnia- Replies
- 11
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- 1,289
Kryn, You may need a 3 phase motor of about...
Kryn,
You may need a 3 phase motor of about 0.55kW to give enough power at low speeds, and this could weigh more than 15 -20 kg, which could double the existing head weight.
You would need to... -
20th August 2015, 09:36 PM
Thread: X2 electrical experience??
by mahgnia- Replies
- 5
- Views
- 798
Kryn, The amber fault light on mine comes on...
Kryn,
The amber fault light on mine comes on when the motor is overloaded (drawing high current over it's rating).
Possibly your motor has a short circuit internally, or even has a seized... -
7th August 2015, 04:40 PM
Thread: Bin Fodder or Repairable
by mahgnia- Replies
- 11
- Views
- 1,308
Dingo, Looks like a new Chinese lathe...
Dingo,
Looks like a new Chinese lathe slide....:)
I think a bit of careful scraping should bring it up to scratch (couldn't help that one).
The angled faces of the dovetail may be more... -
14th June 2015, 01:27 PM
Thread: Trapezoidal thread dimensions.
by mahgnia- Replies
- 4
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- 712
349907 Andrew.
349907
Andrew. -
14th June 2015, 01:24 PM
Thread: Help needed on lathe threading gears
by mahgnia- Replies
- 32
- Views
- 3,221
Eric, Excellent!. Just for completeness,...
Eric,
Excellent!.
Just for completeness, attached is the pitch chart updated to show imperial thread pitches as well as metric.
It seems your lathe should be able to cut many imperial threads... -
13th June 2015, 01:57 PM
Thread: Help needed on lathe threading gears
by mahgnia- Replies
- 32
- Views
- 3,221
C/B was used as it was convenient for the...
C/B was used as it was convenient for the calculation description. It is simply the inverse of the B/C ratio. (B divided by C = 2, therefore C divided by B = 0.5).
In the earlier post, the QCGB... -
12th June 2015, 07:12 PM
Thread: Help needed on lathe threading gears
by mahgnia- Replies
- 32
- Views
- 3,221
Eric, The 40T spindle gear and the 100T gear...
Eric,
The 40T spindle gear and the 100T gear at position C would be the first calculation, as the 30T and tumbler gears are all idler gears in the train, so they do not affect the gear train... -
11th June 2015, 07:30 PM
Thread: Help needed on lathe threading gears
by mahgnia- Replies
- 32
- Views
- 3,221
Eric, If you know the number of teeth on the...
Eric,
If you know the number of teeth on the drive gear on the lathe spindle, we can work back through first principles to determine the change gears you need to cut the worm most accurately.
We... -
11th June 2015, 01:54 AM
Thread: Help needed on lathe threading gears
by mahgnia- Replies
- 32
- Views
- 3,221
Eric, Does the gear shaft at position B allow...
Eric,
Does the gear shaft at position B allow for two gears on the shaft, or is it a single gear idler only?
Andrew -
11th June 2015, 01:38 AM
Thread: Help needed on lathe threading gears
by mahgnia- Replies
- 32
- Views
- 3,221
Eric, Spreadsheet updated to allow selected...
Eric,
Spreadsheet updated to allow selected gear to be installed in position C.
Position B is an idler gear by the original chart and would therefore not affect the ratio. It would be changed to... -
10th June 2015, 09:12 AM
Thread: Help needed on lathe threading gears
by mahgnia- Replies
- 32
- Views
- 3,221
RC, My initial checks into possible compound...
RC,
My initial checks into possible compound gear trains suggests that your assessment is correct, depending on the degree of accuracy required to cut this worm.
Andrew. -
10th June 2015, 01:11 AM
Thread: Help needed on lathe threading gears
by mahgnia- Replies
- 32
- Views
- 3,221
Eric, I can update the spreadsheet to show...
Eric,
I can update the spreadsheet to show pitches that result from other combinations of gears in B and C if you need.
Working back from the chart (using the screwcutting values, as the feed... -
9th June 2015, 06:08 PM
Thread: Help needed on lathe threading gears
by mahgnia- Replies
- 32
- Views
- 3,221
Eric, Spreadsheet attached. The calculations...
Eric,
Spreadsheet attached. The calculations are in the spreadsheet cells. The QCGB ratios were calculated back from the picture of the label you supplied.
349564
If you can change the 30... -
9th June 2015, 12:42 AM
Thread: Help needed on lathe threading gears
by mahgnia- Replies
- 32
- Views
- 3,221
Eric, Below attached is a chart I threw together...
Eric,
Below attached is a chart I threw together that should be correct for your lathe based on the following assumptions:
1. Leadscrew is 2mm pitch
2. the 30 and 100 tooth gears in positions B... -
29th May 2015, 02:55 PM
- Replies
- 147
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- 12,513
Simon, If you can buy one that works well, you...
Simon,
If you can buy one that works well, you should be able to make one that works as well or better, to suit your lathe.
Things to focus on are rigidity, good lathe bearings, rigidity, smooth... -
28th May 2015, 04:50 PM
Thread: C2 P.O.S lathe taper cuts
by mahgnia- Replies
- 18
- Views
- 2,162
Kryn, Bearings for upgrade...
Kryn,
Bearings for upgrade http://www.ausee.com.au/shop/item.aspx?itemid=1323
As you probably already know, these will fit on both the C2 and the X2.
My X2 shows huge improvement with... -
Sacc, Good work! I much prefer the over and...
Sacc,
Good work!
I much prefer the over and under ball turner due to their simplicity and rigidity, as the cutting load is directed straight towards the toolpost.
Andrew. -
17th May 2015, 05:08 PM
Thread: X2 Parts????
by mahgnia- Replies
- 5
- Views
- 786
Kryn, Are these the parts? 347383 May be...
Kryn,
Are these the parts?
347383
May be worth checking the motor shaft diameter as I believe this has varied with certain models.
I think the one pictured is 9mm ID.
Andrew. -
10th May 2015, 04:40 PM
Thread: Threading Advice…..Again!
by mahgnia- Replies
- 35
- Views
- 2,563
Simon, It would depend on how much thread...
Simon,
It would depend on how much thread engagement you need, which would depend on what you are using the nut and bolt for.
The actual position, sizing and thread face shape of the thread in... -
10th May 2015, 04:19 PM
Thread: C6 Lathe 3 Phase + VSD Conversion
by mahgnia- Replies
- 9
- Views
- 1,809
Snowy, The only times I have needed to change...
Snowy,
The only times I have needed to change the belt drive to a different ratio in the last six months of use was when I used a parting tool on a piece of 3" diameter steel bar, and when I was... -
10th May 2015, 11:29 AM
Thread: 7 X 12 motor conversion???
by mahgnia- Replies
- 17
- Views
- 1,892
Snowy, Some ideas here maybe helpful:...
Snowy,
Some ideas here maybe helpful:
https://www.woodworkforums.com/showthread.php?t=190097&p=1822165#post1822165
Andrew -
23rd January 2015, 03:57 PM
Thread: X2 Modifications
by mahgnia- Replies
- 9
- Views
- 1,319
Kryn, Posts with pictures for my X2 belt drive...
Kryn,
Posts with pictures for my X2 belt drive conversion.
https://www.woodworkforums.com/showthread.php?t=121056&p=1611899#post1611899... -
23rd January 2015, 03:39 PM
Thread: X2 Modifications
by mahgnia- Replies
- 9
- Views
- 1,319
Kryn. Attached spreadsheet with pulley sizes...
Kryn.
Attached spreadsheet with pulley sizes that can be changed to suit whatever centre distance between pulleys on the X2 you like.
337736
I will find the link to my X2 belt conversion and... -
29th December 2014, 11:46 AM
Thread: C2 thread cutting ratios
by mahgnia- Replies
- 12
- Views
- 1,496
Kryn, After a bit of fiddling with my C6 gear...
Kryn,
After a bit of fiddling with my C6 gear program to give suitable results for your C2 with a 16TPI leadscrew, the following are some change gear settings that may work for various metric... -
28th December 2014, 09:06 PM
Thread: C2 thread cutting ratios
by mahgnia- Replies
- 12
- Views
- 1,496
Kryn, Good link that should help those with...
Kryn,
Good link that should help those with this lathe and imperial leadscrew.
The gear change combination suggested on this page for 1.5mm pitch should work fine for your ER25 collet chuck.... -
28th December 2014, 06:27 PM
Thread: C2 thread cutting ratios
by mahgnia- Replies
- 12
- Views
- 1,496
Kryn, Working back from the gear train...
Kryn,
Working back from the gear train suggested from your original post, the leadscrew is metric with a 1.6mm pitch.
If so, we may find a better combination of cahange gears to use.
Andrew -
28th December 2014, 05:58 PM
Thread: C2 thread cutting ratios
by mahgnia- Replies
- 12
- Views
- 1,496
Kryn, It sounds like your lathe may be an...
Kryn,
It sounds like your lathe may be an imperial one with a 16TPI leadscrew.
You will need to check the leadscrew pitch before you can work out the change gears that should be used.
If you... -
28th December 2014, 12:39 PM
Thread: C2 thread cutting ratios
by mahgnia- Replies
- 12
- Views
- 1,496
Kryn, Does the gear not reach to mesh with the...
Kryn,
Does the gear not reach to mesh with the C gear, or is it in the wrong plane?
The Grizzly manual for a C2 gives for 1,5mm pitch: A 40, B 60, C (nothing), D 40.
This means that a spacer... -
17th November 2014, 12:12 AM
Thread: C6 Lathe 3 Phase + VSD Conversion
by mahgnia- Replies
- 9
- Views
- 1,809
C6 Lathe 3 Phase + VSD Conversion
Guys,
I've just recently got to a working stage the conversion to 3 phase motor with a VSD for my C6 lathe.
The VSD I am using is a Danfoss VLT 4kVA unit which requires 3 phase 415V input.... -
7th November 2014, 06:09 PM
Thread: Fly Cutter for Sieg X2 mill
by mahgnia- Replies
- 14
- Views
- 1,859
Brian, Be vary wary of using a fly cutter on...
Brian,
Be vary wary of using a fly cutter on this mill... the plastic gears can very easily strip with the intermittent cutting action, especially if you crash the fly cutter into the work.
... -
20th June 2014, 08:57 PM
Thread: What did you learn today?
by mahgnia- Replies
- 450
- Views
- 47,936
Joe, Looks like you "lifted" a cashbox. ...
Joe,
Looks like you "lifted" a cashbox.
Andrew -
28th May 2014, 12:23 AM
Thread: Your latest project
by mahgnia- Replies
- 1,570
- Views
- 270,987
C6 Collet Chuck
Harty,
That tapping guide looks very nice - a good idea for my next project.
Gents,
I've just finished making an ER32 collet chuck for the C6 lathe.
The MT3 collet chuck on the mill wasn't... -
22nd May 2014, 08:33 PM
Thread: scrap metal
by mahgnia- Replies
- 15
- Views
- 2,669
Eric, You could try Highett Metals on Boundary...
Eric,
You could try Highett Metals on Boundary Road in Braeside.
They usually have a aluminium offcuts bin near the office which I have found handy for a couple of projects.
Andrew -
17th May 2014, 06:27 PM
Thread: Your latest project
by mahgnia- Replies
- 1,570
- Views
- 270,987
Bob, Agree with that. I'm considering turning...
Bob,
Agree with that. I'm considering turning one of the spare arbours into a fly cutter, however, my patience level will need to recover as the black steel was horrible to machine, making a... -
17th May 2014, 01:36 PM
Thread: Your latest project
by mahgnia- Replies
- 1,570
- Views
- 270,987
MT3 Arbours
Following on from this post about the boring head I made (https://www.woodworkforums.com/showthread.php?t=121056&p=1706088#post1706088), after using it a couple of times I found I needed a lot more...
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9th May 2014, 08:53 AM
Thread: Lathe dogs - use of
by mahgnia- Replies
- 17
- Views
- 3,883
The type of lathe dog in Bryan's picture can be...
The type of lathe dog in Bryan's picture can be made fully balaced by making the two sides exactly the same as the bottom side in the picture, including the drive leg on both sides.
I made a very... -
15th April 2014, 09:03 PM
Thread: Feedback on Optimum D250X550 Lathe
by mahgnia- Replies
- 18
- Views
- 5,037
Judging by the youtube video about this lathe, it...
Judging by the youtube video about this lathe, it looks almost the same as the Sieg C6B with a different shape headstock sheet metal and a few minor changed details and extra features like a lever...
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11th April 2014, 11:25 AM
Thread: B-Section pulley needed
by mahgnia- Replies
- 13
- Views
- 1,951
I have a 2SPB cast iron pulley approx. 5 1/4 " OD...
I have a 2SPB cast iron pulley approx. 5 1/4 " OD with a 1 3/8" taperlock in Melbourne for the taking. Slight surface rust and minor groove wear, can be easily cleaned up, or used as is.
Andrew -
22nd March 2014, 12:03 AM
Thread: Your latest project
by mahgnia- Replies
- 1,570
- Views
- 270,987
C6 Lathe Feed Reversing Tumbler
Guys,
Just completed the final(!) modification to the C6 lathe's change gear setup. This one is a feed reversing tumbler arrangement.
The standard setup on the C6 requires the normal spindle... -
13th March 2014, 11:47 AM
Thread: DeWalt Bandsaw model 3501
by mahgnia- Replies
- 2
- Views
- 3,207
Ian, Attached exploded diagram and parts list...
Ian,
Attached exploded diagram and parts list may provide some ideas.
Do you have any photos?
Andrew
307257
307258 -
18th February 2014, 09:39 PM
Thread: Your latest project
by mahgnia- Replies
- 1,570
- Views
- 270,987
C6 Lathe Change Gear Quadrant Upgrade
Guys,
Further to the modification to the C6 spindle idler in this post (https://www.woodworkforums.com/showthread.php?t=121056&p=1743732#post1743732), I have made a replacement change gear quadrant... -
7th February 2014, 11:02 PM
Thread: Sieg C6 lathe new threading capabilities
by mahgnia- Replies
- 42
- Views
- 10,686
Ian, I've only just written the program, so it...
Ian,
I've only just written the program, so it should be able to give only working solutions. The solutions I have previously sent you were found using an Excel spreadsheet, and did not account... -
7th February 2014, 10:30 PM
Thread: Sieg C6 lathe new threading capabilities
by mahgnia- Replies
- 42
- Views
- 10,686
Ian, Sorry....Typo...should have been 75 not...
Ian,
Sorry....Typo...should have been 75 not 72.
I didn't get an extra 25
Andrew -
7th February 2014, 01:21 PM
Thread: Sieg C6 lathe new threading capabilities
by mahgnia- Replies
- 42
- Views
- 10,686
I have set it up to suit the gears that came with...
I have set it up to suit the gears that came with my C6 ie 25, 30, 33, 40, 42, 50, 52, 60, 66, 70, 72, 80(2off), 90(2off). i don't know what the other gear is, unless this includes the reversing...
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6th February 2014, 07:57 PM
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- 13
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- 2,293
Amos, Well done. That mill looks like a...
Amos,
Well done.
That mill looks like a version of the Sieg X2 mill. Metal gears are available for these from the Little Machine shop online.
The plastic original gears on these are OK until... -
6th February 2014, 05:59 PM
Thread: Sieg C6 lathe new threading capabilities
by mahgnia- Replies
- 42
- Views
- 10,686
C6 Gear Combo Program
Ian,
I've written a program for C6 gear combinations(Windows). It's very basic so far.
Please tell me what you think!
Screen Shots:
303139303140
Andrew -
4th February 2014, 04:40 PM
Thread: Sieg C6 lathe new threading capabilities
by mahgnia- Replies
- 42
- Views
- 10,686
More info... With the adjustable idler setup,...
More info...
With the adjustable idler setup, for RH threads idler size can be anything from 40T to 90T, and the smallest that works for the particular combination is best.
Using the standard... -
3rd February 2014, 11:53 PM
Thread: Sieg C6 lathe new threading capabilities
by mahgnia- Replies
- 42
- Views
- 10,686
Ian, Check out this thread...
Ian,
Check out this thread https://www.woodworkforums.com/f65/your-latest-project-121056/index77.html#post1743732 for the adjustable idler gear mounting for the C6.
Having just installed it, and... -
3rd February 2014, 11:44 PM
Thread: Your latest project
by mahgnia- Replies
- 1,570
- Views
- 270,987
Sieg C6 lathe adjustable idler gear mount for thread cutting
Gents,
If any of you have been following this thread (https://www.woodworkforums.com/f65/sieg-c6-lathe-new-threading-capabilities-181303/) you may have noted that the change gear selection process... -
2nd February 2014, 04:23 PM
Thread: Sieg C6 lathe new threading capabilities
by mahgnia- Replies
- 42
- Views
- 10,686
Ian, I blame the heat... probably about 40C in...
Ian,
I blame the heat... probably about 40C in the workshop, and I'm silly enough to be making up an adjustable idler mounting plate and shaft as described in a previous post.
Mock-ups so far are...