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Search: Posts Made By: Rob65
Forum: Mechanical & Electrical 02-21-2021, 03:55 AM
Replies: 30
Views: 1,685
Posted By Rob65
With these sort of 12v hydraulic pumps you need...

With these sort of 12v hydraulic pumps you need to keep an eye on the duty cycle for the electric motor.

I have one on a small rock drilling machine that I built. I think if I were to switch it...
Forum: Machining 02-20-2021, 03:40 AM
Replies: 6
Views: 615
Posted By Rob65
Is this shaft running in a plain bush in the end...

Is this shaft running in a plain bush in the end of the crankshaft?

Might it be easier to replace the bush with one made up with a smaller bore than the existing one to match the nose of the...
Forum: Mechanical & Electrical 02-03-2021, 06:27 AM
Replies: 32
Views: 2,403
Posted By Rob65
Bunk, it’s a bit late for that, he’s already got...

Bunk, it’s a bit late for that, he’s already got a girt great dozer stuck in his woods.

This Case is just the arrival of the next member of ORF’s Yellow Iron family. Give him time, it’s bound to...
Forum: Fabrication 12-22-2020, 02:41 AM
Replies: 20
Views: 2,778
Posted By Rob65
There are shrinking tools that have jaws in them...

There are shrinking tools that have jaws in them that grip and squeeze the metal.

The ones I’ve seen only have a shallow throat so may be limited in how well it would work in this application.
...
Forum: Mechanical & Electrical 12-16-2020, 02:48 AM
Replies: 16
Views: 1,889
Posted By Rob65
Wot ya doing ordering special bolts? You...

Wot ya doing ordering special bolts?

You have just taken delivery of a lathe. The only thing you might be missing is a bit of bar stock.

The way it’s supposed to work is use ‘boy toy’ number...
Forum: Machining 10-01-2020, 02:14 AM
Replies: 50
Views: 4,500
Posted By Rob65
ORF, You really need to stop reading the...

ORF,

You really need to stop reading the local ‘For Sale’ adverts.

It’s getting bad for your wealth [emoji1][emoji1][emoji1]

Are you getting the the old lathe as well or just the mill?

...
Forum: Machining 09-27-2020, 02:51 PM
Replies: 50
Views: 4,500
Posted By Rob65
Is there much carbide tooling that can be used in...

Is there much carbide tooling that can be used in a horizontal mill, I’ve not seen any?

The cutters are generally quite large so will be expensive to buy. If using HSS tools you will need to find...
Forum: Machining 09-16-2020, 04:01 PM
Replies: 23
Views: 3,412
Posted By Rob65
I also think the round plate is a lapping plate. ...

I also think the round plate is a lapping plate.

Rob


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Forum: Mechanical & Electrical 09-02-2020, 04:58 PM
Replies: 28
Views: 2,870
Posted By Rob65
If older machines appeal to you and you operate...

If older machines appeal to you and you operate them with a bit of mechanical sympathy then my advice is to go right ahead.

I had a JCB 3C for about 8 yrs. It was a 1978 model so was over 30 hrs...
Forum: Mechanical & Electrical 09-02-2020, 02:48 AM
Replies: 28
Views: 2,870
Posted By Rob65
I’ve owned both a backhoe and a mini excavator...

I’ve owned both a backhoe and a mini excavator and would say a backhoe would be the machine you need.

It will lift and carry where a mini excavator will dig but that’s about it.

If your...
Forum: Machining 08-12-2020, 03:49 PM
Replies: 21
Views: 1,792
Posted By Rob65
I don’t see it being a problem 50 to 100rpm...

I don’t see it being a problem

50 to 100rpm and a nice sharp HSS will give a beautiful finish on most steels at 1/2” diameter.




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Forum: Mechanical & Electrical 08-08-2020, 03:00 AM
Replies: 20
Views: 1,995
Posted By Rob65
Yep, choke is needed to start every time, even...

Yep, choke is needed to start every time, even when the engine is hot.

I have a Chonda clone on my power washer and can run it for ages and get it good and hot. Stop it for 30secs and try to...
Forum: Machining 08-08-2020, 02:53 AM
Replies: 56
Views: 3,506
Posted By Rob65
Yes, I was thinking the mill saddle slides we the...

Yes, I was thinking the mill saddle slides we the other way around.

You should be able to take the measurements from the slides on the underside of the table. As well as the measurements marked...
Forum: Machining 08-06-2020, 03:48 PM
Replies: 56
Views: 3,506
Posted By Rob65
ORF, have you measured the angle on the mill...

ORF, have you measured the angle on the mill knee?

I’m assuming it’s an internal dovetail? If so put two identical diameter drills, one on each side and measure the gap between them.

Do the...
Forum: Machining 08-02-2020, 02:45 AM
Replies: 56
Views: 3,506
Posted By Rob65
ORF, I think I would be looking at tilting the...

ORF,
I think I would be looking at tilting the head of the mill to replicate this.

To set the mill I would use the following procedure:

Set the old gib parallel to the long travel of the mill...
Forum: Machining 07-27-2020, 02:21 AM
Replies: 20
Views: 1,645
Posted By Rob65
How about turning up some new bosses out of...

How about turning up some new bosses out of steel, cut the ends of the axle and weld new bosses on.

If you want to get really posh you could then ream the holes to overcome any distortion caused...
Forum: Mechanical & Electrical 07-19-2020, 04:35 PM
Replies: 23
Views: 1,941
Posted By Rob65
Evinrude 225

I’m with Doug on this one and hope shade is able to enlighten us.

In the meantime I’m going to guess that running temperature and rpm range plays a part in requiring different oil specs.

As a...
Forum: Machining 07-15-2020, 02:46 AM
Replies: 40
Views: 2,970
Posted By Rob65
Sounds like a fun little project and a good way...

Sounds like a fun little project and a good way to get some practice in with your new toy.

Keep us posted on your progress.

Rob


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Forum: Shop & Safety 07-04-2020, 02:37 AM
Replies: 1,378
Views: 111,042
Posted By Rob65
ORF, You know you have a good vice when you...

ORF,

You know you have a good vice when you need to use a forklift to move it. The mount looks solid and well made. I don’t think you will be needing to make another one any time soon.

Is your...
Forum: Mechanical & Electrical 06-27-2020, 04:20 PM
Replies: 199
Views: 16,161
Posted By Rob65
Jen, The correct lanyard to use has a shock...

Jen,

The correct lanyard to use has a shock absorber in it.

It’s like a section of the webbing that is stitched into a concertina. The idea is that if you fall the stitching gradually peals...
Forum: Shop & Safety 06-01-2020, 03:47 AM
Replies: 1,378
Views: 111,042
Posted By Rob65
Door looks good. I see you are filling the...

Door looks good.

I see you are filling the shop up nicely. It won’t be long and you will be ready for a formal inspection and certification from your local SFT inspector to confirm that you now...
Forum: Shop & Safety 05-26-2020, 04:37 PM
Replies: 125
Views: 16,595
Posted By Rob65
Yes and no is the answer to this. Strictly...

Yes and no is the answer to this.

Strictly speaking you should just connect directly from the VFD output terminals to the motor terminals.

But I guess if you are the only person who uses the...
Forum: Shop & Safety 05-25-2020, 04:49 PM
Replies: 125
Views: 16,595
Posted By Rob65
Yup, VFD’s are my preferred route for 3 phase...

Yup, VFD’s are my preferred route for 3 phase machines.

The Chinese ones are cheap enough (as long as you don’t mind taking Kungflu precautions).

The only word of warning would be to over...
Forum: Machining 05-25-2020, 04:27 PM
Replies: 43
Views: 4,792
Posted By Rob65
[QUOTE=TEK;755442]Whats the last one % comprised...

[QUOTE=TEK;755442]Whats the last one % comprised of?


Whatever tish was left in the jug from its previous use that he now uses to mix his potion in[emoji3][emoji3][emoji3]


Sent from my...
Forum: Shop & Safety 05-24-2020, 01:56 AM
Replies: 1,378
Views: 111,042
Posted By Rob65
I have a similar sounding VFD of Chinese origin. ...

I have a similar sounding VFD of Chinese origin.

As Gwiz says, the output from the VFD needs to be connected directly to the motor terminals with no switches in between.

It is possible to...
Showing results 1 to 25 of 108

 
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