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Type: Posts; User: Jon.holmes
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12th Jun 2022, 09:30 PM
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3mt / 3c showing in Gumtree. Search for Hercus
3mt / 3c showing in Gumtree. Search for Hercus
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17th Jan 2022, 08:33 PM
Thread: Lorch WW watchmakers Lathe
by Jon.holmes- Replies
- 14
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Those parts might not be Lorch. It might be...
Those parts might not be Lorch.
It might be worth contacting Tony at Lathes.co.uk to see if he is able to provide info (if he replies!) -
21st Nov 2021, 08:47 AM
Thread: Hercus 5" chuck jaws
by Jon.holmes- Replies
- 3
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- 1,575
Do you want the internal or external set? I have...
Do you want the internal or external set? I have several external sets I have slowly been selling
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26th May 2021, 03:15 PM
Thread: 6mm, thin wall stainless tubing
by Jon.holmes- Replies
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Another source for sets of different sizes (2mm...
Another source for sets of different sizes (2mm to 8mm) is stainless steel knitting needles - thin walled (search on ebay)
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12th May 2021, 07:22 PM
Thread: Loosening a stuck Chuck
by Jon.holmes- Replies
- 10
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BTW that video shows a home made version of what...
BTW that video shows a home made version of what is called a "strap wrench".
For about $10 such a wrench using a grippy thick rubber strap can purchased from most hardware stores.
392065
Mmm. I... -
6th May 2021, 11:13 PM
Thread: Lorch WW watchmakers Lathe
by Jon.holmes- Replies
- 14
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- 5,193
Yes, That would be a "10mm" collet (the spindle...
Yes, That would be a "10mm" collet (the spindle bore is probably 10.0mm). Lorch 10mm lathe names seem to start with "L" I think what you have is a Lorch LL...
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30th Apr 2021, 06:35 PM
Thread: Unknown lathe gear change set
by Jon.holmes- Replies
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You might be right with the module. I have edited...
You might be right with the module. I have edited the DP on the second set of gears to 12.75 (it was copied/pasted as 17!) - which is close to mod 6.
I measured 2 gears for each set (with a... -
30th Apr 2021, 03:47 PM
Thread: Unknown lathe gear change set
by Jon.holmes- Replies
- 5
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- 1,256
Unknown lathe gear change set
I have a set/partial set of change gears from a lathe - new/unused. They came with some Hercus spares from a Tas. school/Tafe. The change gear set is on a 4 spline centre (about 22mm outside and 19mm...
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11th Dec 2020, 10:33 AM
Thread: CC engineering tool and cutter grinder
by Jon.holmes- Replies
- 64
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Steamloco1954, Thanks for the info. The device...
Steamloco1954,
Thanks for the info. The device only came with one cam. Would it be possible for you to photograph some of your cams? I assume they are all the same diameter, but the lobes must... -
11th Dec 2020, 10:25 AM
Thread: CC engineering tool and cutter grinder
by Jon.holmes- Replies
- 64
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- 28,584
Previous owner here. The centre on the right...
Previous owner here.
The centre on the right hand end is fixed (in the centre). The sliding dovetail moves the V block (so the square end of a tap can be held tightly on centre?). Currently there... -
6th Dec 2020, 08:30 AM
Thread: CC engineering tool and cutter grinder
by Jon.holmes- Replies
- 64
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- 28,584
[QUOTE=jhovel;1978383]I suspect it depends on...
[QUOTE=jhovel;1978383]I suspect it depends on when it was made.
Mine had plain bearings and I replaced them with angular contact bearings.
A friend near me has one that came with Deep groove ball... -
3rd Dec 2020, 04:09 PM
Thread: CC engineering tool and cutter grinder
by Jon.holmes- Replies
- 64
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- 28,584
CC model 4 spindle bearings
Does anyone have info about the spindle bearings in the CC model 4 grinder? The one I have seems to have been "modified" to take wheel bearings - tapered roller after some overheating issues. Were...
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27th Aug 2020, 02:43 PM
Thread: 17 tpi thread
by Jon.holmes- Replies
- 24
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- 10,335
Harold also explains the effect of errors.........
Harold also explains the effect of errors......
Too complex for me!
[/QUOTE]
Agree, it looks complicated. Partly because of not eliminating "silly" gear options.
For example, cutting a... -
24th Aug 2020, 11:36 PM
Thread: 17 tpi thread
by Jon.holmes- Replies
- 24
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- 10,335
I know this is probably too late, but changing...
I know this is probably too late, but changing the standard 20 tooth stud gear with a 26 tooth gear and gearbox set on cutting 22tpi (or gears to cut 22tpi) will give 1.50091 mm pitch.
Calculations:... -
17th Sep 2017, 01:47 PM
Thread: Cash T&C grinder
by Jon.holmes- Replies
- 9
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- 3,211
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16th Sep 2017, 05:22 PM
Thread: C.C Model D Tool and Cutter Grinder
by Jon.holmes- Replies
- 7
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- 3,691
table extensions
Are you still after photos of table extensions?
My newly acquired model D has a metal set.
Jon -
16th Sep 2017, 04:00 PM
Thread: CC engineering tool and cutter grinder
by Jon.holmes- Replies
- 64
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- 28,584
Brian, Are you still going with this grinder?...
Brian,
Are you still going with this grinder? I have just become an owner of one too - in very good condition, but does not have all the accessories.
Jon -
26th Aug 2016, 12:22 PM
Thread: Schaublin 102TR bits for sale
by Jon.holmes- Replies
- 3
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- 2,516
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