Here is a list of all the postings Michael Horner has made in our forums. Click on a thread name to jump to the thread.
Thread: Wimberley lathe tool holder |
08/11/2014 20:27:36 |
Hi Alan, can't help with a supplier. Sorry. Vic. Read through the manual and picked up on the extract below. I have noticed this on my tangential tool (one I have made). I have moved on to Crobalt but the cutting flank does seem to scuff up but is more durable than m42 HSS. Normal HSS was a waste of time. Anybody else have this issue? Cheers Michael. "When I was using a tangential toolholder, I was very dissatisfied with flank wear. In order to clean up flank wear, you cannot grind the flank; you must grind the rake surface and quite a bit of material may need to be removed. I would be interested to know if others have had this same experience". |
Thread: dreaming or just getting old ????????????? |
29/10/2014 07:05:37 |
Posted by frank horton on 29/10/2014 03:21:06:
Hi guy's, I'm sure I saw a post on " difficult lube problem on a camshaft" 28.10.014….. and I can't find it…have an idea I'd like to forward…..was I dreaming….? thanks Frank in France
Hi Frank The above link goes to a thread about a cam lubrication problem but the date does't match. Cheers Michael |
Thread: LEDs ... The Good, The Bad, and The Ugly |
26/10/2014 13:39:35 |
Posted by Geoff~ on 26/10/2014 13:14:51:
Les, I cannot find your LED driver on your website regards Geoff~ Hi Geoff Try the link below. He has 2 web sites! Cheers Michael.
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26/10/2014 11:05:48 |
Posted by Michael Gilligan on 26/10/2014 10:13:38:
Posted by Michael Horner on 26/10/2014 08:46:16:
... Bought a 20amp PSU now the heat sink gets warm and the LEDs are bright. The garage temperature is 13.6C and after 45 mins the heat sink is 34.7C. Something to warm my fingers on in the cold! . Very interesting, Michael If you have the opportunity ... Could you please check what current these strips are now drawing at 12volts. Also maybe the dimensions of your heatsink. Many thanks MichaelG. 1.9 Amps! That will teach me to assume! I was expecting 8 Amps!! So it looks like Les was on the money! Well at least the PSU's will run cool and I will have plenty of juice to drive other things. The aluminium strip is 4 foot by 1 inch by 1/8 inch. Cheers Michael. |
26/10/2014 08:46:16 |
I have made up 2x 4 foot LED strip lights double row from a 5 meter flexi strip. I have stuck them on to a strip of aluminium flat bar to act as a heat sink. When I first turned the one above the lathe it didn't seem that bright and the heat sink didn't get warm. The power supply was an old PC unit. The 12 volts was rated at 8amp. When I measured the voltage under the load of the lamp it was 9.5v! Bought a 20amp PSU now the heat sink gets warm and the LEDs are bright. The garage temperature is 13.6C and after 45 mins the heat sink is 34.7C. Something to warm my fingers on in the cold! Cheers Michael. |
Thread: Vintage motorbike |
20/10/2014 22:56:12 |
Posted by ronan walsh on 19/10/2014 14:21:24:
Posted by John Stevenson on 19/10/2014 12:28:20:
Couple of shots of that V6 from the timing side.
Which was a much more interesting side. Crankcase was welded up for about 4 set's a cut and shunt standard cases. "Not only a v6, but converted to overhead cams AND fuel injection. Amazing work by someone".
Not only the above but he has moved the end spark plug holes to the top of the head. Not convinced he has gone to 4 valves per pot because I think the heads are original, That would be a lot of work! Cheers Michael |
19/10/2014 13:32:06 |
But what about the bees? |
19/10/2014 12:46:40 |
Although plug caps where fitted there where no wires so don't know if it runs. I'm not familier with the crankshaft on these engines, just wondering if there is enough metal in there to stop it flexing. Cheers Michael. |
19/10/2014 11:19:45 |
Went to the Staffordshire showground for the Motorcycle Mechanics offering
There's a few more pictures in the alblum, did't want to overload the post. The BSA triple is a V6! Enjoy. Michael |
Thread: LEDs ... The Good, The Bad, and The Ugly |
05/10/2014 23:49:21 |
. P.S. When I finally get to grips with keeping the 10W chip cool, there is a 50W device waiting to go into a microscope lamphouse [no Fans permitted, it needs to be Passive cooling].
Hi Michael Can you use liquid cooling like I believe the use on some high power PC CPU's? I think I read somewhere pulsing the supply (PWM) is not an option for you. HTH Cheers Michael. |
05/10/2014 20:34:14 |
Thanks for that Graham. I will try a reel of none IP65 because they will get rid of the heat better. I don't need the IP65 rating because they are going to be ceiling mounted for general lighting. Cheers Michael. |
05/10/2014 18:33:14 |
Posted by Oompa Lumpa on 05/10/2014 16:33:09:
Here you go, this is all LED strip. Gives you a general idea anyhow. Works well. graham. Hi Graham Looks great. Are they the IP65 variant of the strip? The reason I ask I have used the IP65 type before for under cupboard lighting and for the first 3-4 months it was great but then the light output would fall off. Checking the strip I noted the resistors had burnt! This happened on more than one occasion so I am not keen to repeat. The house was unaturaly warm (30deg) (SHMBO) may have had something to do with it. The garage wont be that hot. Cheers Michael.
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05/10/2014 11:56:49 |
Hi Anybody used the 5M LED strips to make up lighting strips. I desparately need some extra lighting, I have 1 CFL in a single garage. I was going to go down the flourescent tube route and saw this thread. TIA Michael. |
Thread: Workshop lighting |
07/09/2014 09:12:06 |
Posted by Clive Haynes 1 on 06/09/2014 22:15:26:
Hi, regarding Mike Haughton's article on workshop lighting I would like to add details of the lighting that I use in my workshop & garage. Firstly I hate florescent lighting and seem to be constantly replacing tubes or starters. I have replaced all 10 units with LED units which I made from 50mm pvc trunking with the led self adhesive strips on the front face and the led driver on the inside of the trunking, with end caps in place the look quite neat. With this system you can tailor the fittings to your own requirements. The smd strips come in 5 meter lengths and in 2700 kelvin to over 6000. Just a little correction to Mike's reference to the stagecoach wheels in old movies, this was due to the shutter speed of the movie camera. Hi Clive How long have you had your LED strips running? I made up strips for under cupboard lighting and in the begining the light was fantastic but over a short period of time (months) they dimmed. Inspection of the strip showed burn marks around the resistors. I used an ordinary wall wart smpsu with 12v regulated output. When the output was measured it was 12v. It could have been because they were behind a pelmet and so sat in the heat that they generated. A lighting website I was looking at suggested the strips should be mounted on heatsinks. I have moved and at the moment I only have a single CFL plus machine lights and its not enough. I was going to go back to florescents, when they failed replace them with LED tubes but that's expensive. Cheers Michael. |
Thread: EN8 steel finish |
31/08/2014 07:28:20 |
Posted by Steve Withnell on 30/06/2014 13:20:44:
This feels like I'm swanking a bit - however here is a crankshaft I made made from EN8. All done with HSS on a Sieg C6B lathe. Sharp HSS is the way to go to get a good finish, with the tool height set right and the tool the right shape. I have no facility to deliver flood coolant, so can't comment on that. Although my lathe will run at 2500 rpm and I can take decent cuts with tip tools, and it will deliver a good finish, it's all bit too frantic when I'm trying to get those tiny journals dead to size. (Within the ability to measure of course...) Steve Your swanking ! I am on my 5th attempt at this crankshaft Cheers Michael. |
Thread: Is my lathe finnished |
31/08/2014 00:28:12 |
Pure guess work. If the lathe in the link is the one the op has. It looks like the gib strip has a locking bolt. This would have to be released before adjusting the gib strip. Cheers Michael. |
Thread: problem with pillar drill |
24/08/2014 21:44:25 |
Posted by Steven Vine on 24/08/2014 21:16:52:
Crikey. That short shaft should not come out of the bearing. Here is a picture of the assembly from underneath (the quill assembly has been removed). This picture is a shot of the underside of the top bearing. The shaft may need to be modified and then pressed in again so it it a tight fit. It has to transfer a lot of torque. Some of the more knowledgeable chaps will provide solutions. Steve Hi Steve Just guessing but I think the grub screw in the pulley transmit the torque into square tube then into the spindle. I think the pulley should be a press fit in the bearings, a bit of low strength loctite should hold it in place. Can't find the fingers crossed icon. Cheers Michael.
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24/08/2014 21:20:37 |
Hi Terry Afraid I can't help with direct experience but I found a manual on the Grizzly Tools website which may give you some ideas **LINK** . On page 28 of the document 34 in the Adobe reader shows an exploded diagram. It seems to show some internal and external retaining clips. Best of luck. Michael. |
Thread: Not a "modeller"! |
24/08/2014 12:22:54 |
Posted by Russell Eberhardt on 24/08/2014 11:48:38:
Posted by Michael Gilligan on 24/08/2014 11:44:53:
Perhaps the simplest solution to all this nonsense would be to stop using MEW as an acronym, and adopt it as a word [not to be confused with "mu" of course]. .. or perhaps rename it Muddle Engineer's Workshop Russell. I like like it. Must get out of this armchair and do some Muddleing Cheers Michael. |
Thread: 'average model engineer' |
23/08/2014 11:52:18 |
Posted by NJH on 23/08/2014 11:39:02:
| ........"is it cheating to buy castings/fittings or is it cheating to use a CNC to hack out the part from solid using a drawing you have prepared yourself or use it to machine/print patterns and make castings from those. " I suggest that all of this only matters if you wish to enter your model into competition. ( and bask in the consequent glories of success and admiration from peers. After all the most beautiful and intricate model is surely of no USE other than to satisfy its maker? Norman
Eloquently put! Cheers Michael. |
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