Here is a list of all the postings peak4 has made in our forums. Click on a thread name to jump to the thread.
Thread: U-Profiles from Square Tubing |
16/04/2017 23:48:21 |
Regarding the clamping on the mill, try it without a vice on the table. Slide a length of square bar down the hole and clamp both end down to the table. I've cut round tube successfully that way, with round bar down the hole of course. |
Thread: P-Power hacksaw |
16/04/2017 22:13:25 |
I do have a 12v 1/4hp motor kicking around somewhere off an old lawnmower, but from what I remember it's a lot larger than a wiper motor, and is also fan cooled. |
16/04/2017 22:05:05 |
It might be worth having a quick read of the Lathes.co.uk article on the Kennedy power hacksaw Tony mentions that the smaller one was fitted with a "Feeble" 1/6 hp motor and the larger one with 1/4 hp motor, so I'd suggest that is probably what you should be aiming for. The internet suggests a 20A fuse for a Corsa wiper motor, so let's say it runs at 12 to 15A under load, i.e. 144 to 180 watts @ 12v Now at 750 watt to the hp, it looks like the wiper motor is in the region of 0.19 to 0.24 hp input, so maybe in the right ball park in theory. I have to say that this seems rather on the high side for something that size, and the one that Dave mentioned in the post above claims to have a rated capacity of only 40w Are you able to measure the current under load? I may of corsa be a talking a complete balderdash, but I'm sure I'll be corrected. Edited By peak4 on 16/04/2017 22:08:38 |
Thread: This is worth a look |
15/04/2017 17:07:26 |
A fascinating video of rasp making, |
Thread: Soldering gun, not iron. |
12/04/2017 19:49:25 |
Posted by Mike Poole on 11/04/2017 15:34:00:
Wire wrapping does seem to have fallen by the wayside, I had a fault on a robot once where I had to get the entire card cage out to access the backplane which was wire wrapped, turned out that the wire was too tightly pulled against one of the posts and had shorted out, took seconds to fix but half a day of diagnosis and dismantling. I think wire wrapped backplanes have fallen out of use for a number of reasons, multi-layer PCB backplanes with plated through holes are much less labour intensive and equipment seems to be more modular with either ribbon cable interconnections or fast serial links. LSI has also put much more onto one board so racks of cards are less common. Mike Still used pretty extensively in telecomms Mike; I'm pretty sure your internet connection to write that will have gone through a number of wire wrapped joints; (if you've got copper broadband anyway). I can remember my first wiring job when I joined the GPO involved 100 wire cable in twisted triples and pairs. The guy I was working for wrapped the first colour code's worth and told me to get on and finish the rest. Some considerable time later, one of his colleagues came up behind me and said words to the effect of " nice neat work, but you've got that colour code reversed." "No" says I, "it's the same as all the rest" It was at this point we both realised that the chap who showed me how to start the job couldn't remember his colour codes. 100 wire blocks, at 10 blocks per vertical row, and Ron only arrived as I was completing the last block on vert-3. That will be 3000 wires to find some slack and re-terminate then; oh how we laughed. I got quite good at stretching wires over the next couple of weeks. Edited By peak4 on 12/04/2017 19:50:07 |
Thread: Parting off tool |
11/04/2017 11:33:39 |
Thanks Michael, I do appreciate that, I actually use an inverted tool in the rear toolpost of my Myford and also it's Warco clone. One advantage of that is that the whole slide is lifted against the dovetails, rather than being pressed away from them, which surely helps improves rigidity as well. I was clearly half asleep when I posted, and was thinking more of using the tool set lower in the toolpost as a shallow grooving tool, rather than for parting off.; then extrapolated to parting without thinking it through. |
Thread: Soldering gun, not iron. |
11/04/2017 11:19:07 |
Posted by Speedy Builder5 on 11/04/2017 11:03:33:
Out of choice, I wouldn't solder as over time, the wire snaps just at the solder joint, I don't know why (Flux ?), but it has failed me on a couple of vintage car re-builds. Funny how the old screw down connectors (Typical Lucas type) seem to go rusty, corrode and still work. The cheap crimp terminals are made of thinner metal than top quality terminals and the cheaper ones with bullet ends are frail especially when you pull them appart a couple of times. I believe the solder tracks back up the multi-cored wire and acts as a stress point where it stops, hence the need for strain relief incorporating the outer insulation. Personally, I think the problem is often too much solder, rather than too little; frequently caused by an iron with too little heat capacity. That is, one needs to offer the iron to the joint for too long to get it hot enough to melt the solder, thereby heating up too much of the wire, albeit slowly; this allows the solder to track too far up the wire. It's not just about speed and cost that the highest quality, mil spec, connectors tend to be crimped rather than soldered. Regards Bill |
Thread: Parting off tool |
10/04/2017 21:11:38 |
This might seem a really silly question, but why does the lathe have to run in reverse? Being entirely self taught, I don't have the benefit of wide and varied training, so I've never seen one of these before. If the tool was sharpened appropriately, wouldn't it work fine in the normal direction, pulling the tool towards you; that way the swarf, particularly fine brass chips, would naturally fall away from the tool. Also the load would be towards the iron casting, with the screws just holding the tool in place, as normal, rather than trying to prevent it being pushed downwards past them. |
Thread: How to contact an advertiser? |
08/04/2017 16:35:47 |
You need to log into the forum, then click on "Send Email" in the advert. I've been in contact with him recently regarding a couple of items which I think were delivered today, going by Hermes Tracking tool anyway; I'm not at home at the moment. I think Rich is quite busy at the moment, so he may take a while to reply.
Regards Bill |
Thread: Cross slide adjusting collar myford super 7 |
06/04/2017 21:34:12 |
It's threaded onto the traverse screw, the grub screw and associated copper washer is to lock it in place, to stop it turning. The threaded collar allows you to adjust the backlash in the screw thread bearing end. Regards Bill |
Thread: Musing About Oils |
06/04/2017 21:30:31 |
Posted by daveb on 06/04/2017 21:20:51:
During WW1 aircraft engines were lubricated with Castor oil, they had a total loss lubrication system which meant that a large amount of used oil was blown into the pilots face. Explains the choice of brown corduroy trousers. A friend of mine use to add a little Castrol R to the petrol tank of his lawnmower as it reminded him of various motorcycle events. |
Thread: Machining a Washer - Procedure |
04/04/2017 10:32:50 |
I made a large stainless washer yesterday, albeit of different dimensions to fit a Belfast sink in the new garage. Inner was hole cut undersize with normal hole saw in pillar drill running slowly with lube. Outer diameter was then cut with small hand guillotine oversize. I then place the rough washer in the 3 jaw, in expansion mode, and sized the outer rim, swapped the jaws over, and held the now finished outer in order to bore to size. In my case the washer was thinner (so I could use a guillotine) and larger, but I've used a similar method by clamping the donor plate to a sheet of plywood and used two different sized holesaws to get the starting annulus, still all done in the bench drill. Obviously cut the inner hole first, so you can still hold the blank; the drill centre hole in the plywood is enough to guide the bore for the larger hole saw. Just replace the drill bit in the hole saw with a suitably sized length of plain rod to run in the hole in the plywood sheet. I can't remember what it was for, but I've done similar with 4 or 5mm stainless plate in the past to make something similar to what you're trying to achieve; it would have been a spacer for one of the motorbikes or the Marlin. Regards Bill |
Thread: Turning a finned aluminium cylinder barrel for a motorcycle |
04/04/2017 10:12:17 |
Posted by Jonathan Garside on 04/04/2017 10:02:19:
Danny Haigh The Phil Irving book was probably "Tuning for Speed" Jonathan I suspect it's Motorcycle Engineering, though I've never read it as I've never been able to spot a copy at an affordable price. I think Clymer did a re-print. Regards Bill |
Thread: Metal cutting Mitre saw |
02/04/2017 23:57:38 |
The date's fine Neil, When I was reinforcing the bench that came with our new house I used an older Milford one to cut the 40mm box section to size before welding it together. They're a cracking but of kit, but they do wander sometimes when the blade starts to get older. Unfortunately, ready made blades are hard to come by, so I have to braze my own to length 49 1/2", though there are firms who will make custom sizes. I am/was considering shortening the saw slightly to take the normal sized Makita ones. Regards Bill |
02/04/2017 19:30:23 |
I used to use one of these at work before I retired, Noisy, metal chips everywhere, but fast and reasonably accurate. I regularly used it on heavy duty 2 1/2" angle and unistrut, but be warned replacement blades are quite expensive, so you need to factor that in. egAAOSwzJ5XanZU">http://www.ebay.co.uk/itm/DeWALT-DW872-355mm-METAL-CUTTING-CHOP-SAW-110v-including-TCT-BLADE-/351766077458?hash=item51e6e46012:g
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Thread: BA thread mnemonic |
01/04/2017 01:50:03 |
Not directly, but this forum might shed a little light on your query;
Regards Bill |
Thread: Metal Planer by George Plant & Son |
31/03/2017 16:41:27 |
For anyone in the North East who may be interested, there's a slightly different one for sale on ebay at the moment |
Thread: What to buy next?? |
29/03/2017 17:14:53 |
I'm hardly the most experienced person on here, though I've been using my Myford on and off for 20+ years; not for model making, but general repairs, self generated workshop tool making, and car/bike parts. It depends on what you plan to use yours for, and also your budget, but I couldn't do without a 4 jaw independent chuck.
Mainly though enjoy learning about your new toy. Bill |
Thread: Gyroscope Build MKII |
28/03/2017 16:15:06 |
Thanks for sharing the videos, I do rather like gyroscopes, but I do think the music volume id too high compared to your voice-over. Regards Bill |
Thread: Watch out for a Dropbox Scam |
28/03/2017 16:02:22 |
Something like this warning I presume; **LINK**
Regards Bill
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