Here is a list of all the postings Pete Rimmer has made in our forums. Click on a thread name to jump to the thread.
|Thread: Electric bike fault|
I repaired one last year that had a fault in the wheel hub. The owner was compleltely mechanically inept, he was complaining about a loss of speed and range and then it wouldn't work. When I looked at it one of the bearings in the motor hub has disintegrated and bits of the cage has been floating about. and ripped off a hall sensor. I replaced the bearing and all three sensors, plus the well-knackered chain and he was off and running again.
I'm not suggesting that you have the identical problem but it might be worth checking in the hub and loom for water/foreign objects.
|Thread: Question Re Camlock Chuck Fixings|
My 8" 3 jaw is held by three D1-3 pins. I see no problem with holding the same size chuck with 3 of the much stronger D1-6 pins.
|Thread: Need advice on clearing Dads shed|
Things seem to sell well on the lathes website. I heard that Tony is very good about giving advice on valuation too.
Chris you'll get a small fraction of the value if you let some clearance merchant take it all away for an easy profit.
The grey Myford Tri-Lever lathe has a gearbox on it, the gearbox alone is worth hundreds so don't let that go cheap. Gearbox models regularly seell for better than £1000 much more if there are steadies and chucks.
The blue shaper looks clean and tidy from what little is shown, there's a few hundred there. Usually they come without the vice because they lso fetch good money separately so don't let someone bid you silly on that either.
I can't see enough of the smaller black lathe to identify it but if it's complete and working there's a couple of hundred at least.
Bench drill has a couple of vices with it, grinder looks like a quality item.
The model on the bench and the one on the top shelf look nicely made but someone else will have to identify those and offer a value on them.
I would say that individually the items I've mentioned will get you comfortably north of £2k. If you take some better pictures and see what attachments come with the larger items you might do much better. Just looking around the pics, the well-used but well kept machines, nicely insulated workshop, home-made powered cross feed on the lathe your dad must really have loved his time in there. You should make sure you do him justice by getting a decent price for his stuff IMO.
|Thread: Size of a Boxford metric Lead Screw|
Denford certainly used imperial stock sizes for Metric pitch leadscews. Their metric cross slide screw drawing calls for a 0.750" diamter 5mm pitch LH ACME form thread. A friend of mine enquired with someone for a Boxford cross-slide screw and he was also told it was a metric pitch but ACME form screw, but I cannot verify that. I have an imperial drawing but not a metric one.
|Thread: Myford change wheels|
Not completely redundant but most of them will not be needed in normal work.
Sell them - they fetch reasonable money.
|Thread: Drilling holes in thin material|
A good old trick.
Another trick I have found if you want to open up a hole a tiny amount in even very thin sheet - get an old adjustable reamer and turn all of the cutting flutes around so they form a very shallow taper instead of parallel. It works great, cuts smooth and you get a very round hole of very precise size (if you're careful). You do get slightly tapered sides to the hole but nothing you could measure on thin sheet.
|Thread: Eagle surface grinder motor and pulley selection|
Oh yeah the spindle lock is very worthwhile. There's no other handy way of holding the spindle to loosen the nut.
I too had a thought about a gib lock but because of the design of the gib it's not so practical. Either way I haven't found it necessary for dressing, the slide stays put.
Variable speed can be a boon on a grinder. If you find your wheel is too hard you can slow it down so that it behaves 'softer'.
|Thread: Harrison m250|
I hav e the same chart on my wall laminated in A3, it's one of the handiest charts I know and so well laid out.
Not just very close - VERY close - half a thou per pitch which is the same as nothing at all for the application. Cut a 12T 16DP gear.
In theory, your 16DP 12T gear should have an OD of 22.23mm plus the long addendum adjustment of 1.98mm to give 24.21mm diameter but they might not have added so much addendum due to it being engaged with a rack I dunno. If you are confident that your OD measurement is correct and hasn't been affected by wear, cut a pinion of that diameter and cut 12 teeth of 16DP into it.
|Thread: Myford ml7. Longbed for under £200|
If i t was in a fire the pulleys would be gone. I think it's just been poorly kept and then neglected in damp storage.
He's added pics in the advert David.
Scraping novice is more like it. Just because you do a lot of something doesn't make you any good :D
I asked for better pictures of the bed. It's a bit grim but not unrecoverable.
Even if the bed is worn it would be worth it. If I didn't have a big queue of scraping jobs in front of me I'd certainly pay the asking price, scrape the bed and it would make a very nice base for a rebuild.
EDIT: Actually having studied the wide angle pic more closely it seems that the seller has cleverly hidden the fact that the bedway is severely pitted on the rear way near the chuck.
Edited By Pete Rimmer on 16/04/2022 23:07:18
|Thread: Eagle surface grinder motor and pulley selection|
I had to make a bigger pulley and had a small pulley plus the belts were easy to get at the motor factors who have a very small selection of vee belts now.
Yes my Eagle motor was 2 pole I fitted a 4-pole and had to make a new pulley to suit. I Went all-in and made poly-vee pulleys.
If you're going to re-motor it watch the overall length of the motor/pulley combination or you'll find that the z-axis screw will foul the back of the motor.
|Thread: Zyto lathe problem|
I never heard of that I must confess. Tiller steering makes just as much intuitive sense as steering wheels if you think about it, because tillers steer the ship by swinging the back in the direction that you push the tiller. That the front turns to the opposite direction is incidental.
I rather think that it's just more intuitive for human minds to deal with. Ask yourself why no car steering wheel turns to the left to make the wheel turn right? With your hand on top of the wheel your hand and the carriage will move in the same direction, same as when driving a car.
|Thread: Rising costs of materials|
Given that Ukraine is (was) one of the biggest suppliers of steel billets this is hardly surprising. I did hear in the news that their largest steel mill had been partially destroyed too so even if the conflict does end production won't be soon to resume.
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