Farm Engineering

Dave W · Oct 22, 2019

Can I put this here? Lathe involved so I'll get chastised by the bodgers.
bearing had spun on flail rotor shaft and worn badly. Built up with weld and machines back. Too long to hold with tailstock so called in the precision plywood. Worked a treat.

the-mad-welder · Oct 22, 2019

Dave W said:
Can I put this here? Lathe involved so I'll get chastised by the bodgers.
bearing had spun on flail rotor shaft and worn badly. Built up with weld and machines back. Too long to hold with tailstock so called in the precision plywood. Worked a treat. View attachment 839869 View attachment 839870 View attachment 839869 View attachment 839870

Was it fixed?
Does it steady?

Its a fixed steady then!

Shovelhands · Oct 22, 2019

Dave W said:
Can I put this here? Lathe involved so I'll get chastised by the bodgers.
bearing had spun on flail rotor shaft and worn badly. Built up with weld and machines back. Too long to hold with tailstock so called in the precision plywood. Worked a treat. View attachment 839869 View attachment 839870 View attachment 839869 View attachment 839870

Oh, do tell, how many rippems did you have that spinning at?

Nearly · Oct 23, 2019

Shovelhands said:
Oh, do tell, how many rippems did you have that spinning at?

All of them?

chickens and wheat · Oct 23, 2019

One less than too many

Dave W · Oct 23, 2019

Shovelhands said:
Oh, do tell, how many rippems did you have that spinning at?

Started off at 80 but progress was slow. 200 felt safe and did a nice job. Dare say it would have gone faster without drama

pycoed · Oct 23, 2019

That's a PROPER bodge.

I'm humbled! A bodge needing a lathe is something we can all aspire to

And with a block out of the wall the possibilities could be endless: perhaps with a heavy boring bar facing where the tailstock was, you could even turn under power beyond the lathe bed?

Dave W · Oct 23, 2019

pycoed said:
That's a PROPER bodge. I'm humbled! A bodge needing a lathe is something we can all aspire to
And with a block out of the wall the possibilities could be endless: perhaps with a heavy boring bar facing where the tailstock was, you could even turn under power beyond the lathe bed?

I needed to do similar to a 3m flail rotor a while ago. I did consider turning lathe 45deg so the 'engineered support' could sit on the welding bench next to it. I bottled that idea though

the-mad-welder · Nov 8, 2019

Cobbled this together today as someone insisted on a hole in the corner of a piece of box section.

Off cut of channel to sit around the box with a plate welded on at 45 degrees to sit the mag drill on and voila!!

Sharpy · Nov 8, 2019

the-mad-welder said:
Cobbled this together today as someone insisted on a hole in the corner of a piece of box section.

Off cut of channel to sit around the box with a plate welded on at 45 degrees to sit the mag drill on and voila!!View attachment 842766 View attachment 842767

Have done something similar with a piece of channel ratchet strapped to a round post so I could drill it.

tomlad · Nov 8, 2019

How thick of plate do u think to mag too

the-mad-welder · Nov 8, 2019

tomlad said:
How thick of plate do u think to mag too

Thicker the better!! The magnet is more secure that way.
That was a piece of 12mm in the picture, thicker would have been more secure but it was the only handy sized off cut I had and one hole didn't warrant cutting a piece especially. There is a light on that drill which goes green when he magnet is secure enough and stays red when not. On that piece of 12mm it flickered between the two, probably confused by the channel and box section underneath but it felt sturdy enough.

If you have to locate the drill on something a bit thin you can always slap another piece of steel underneath the first one to increase the hold. I've drilled holes in purlins that way by having a thickish off cut to help the magnet stick better.

bitwrx · Nov 8, 2019

the-mad-welder said:
Thicker the better!! The magnet is more secure that way.
That was a piece of 12mm in the picture, thicker would have been more secure but it was the only handy sized off cut I had and one hole didn't warrant cutting a piece especially. There is a light on that drill which goes green when he magnet is secure enough and stays red when not. On that piece of 12mm it flickered between the two, probably confused by the channel and box section underneath but it felt sturdy enough.

If you have to locate the drill on something a bit thin you can always slap another piece of steel underneath the first one to increase the hold. I've drilled holes in purlins that way by having a thickish off cut to help the magnet stick better.

Do you use cutting fluid with the rotabroaches? If so, what type?

v8willy · Nov 8, 2019

the-mad-welder said:
Thicker the better!! The magnet is more secure that way.
That was a piece of 12mm in the picture, thicker would have been more secure but it was the only handy sized off cut I had and one hole didn't warrant cutting a piece especially. There is a light on that drill which goes green when he magnet is secure enough and stays red when not. On that piece of 12mm it flickered between the two, probably confused by the channel and box section underneath but it felt sturdy enough.

If you have to locate the drill on something a bit thin you can always slap another piece of steel underneath the first one to increase the hold. I've drilled holes in purlins that way by having a thickish off cut to help the magnet stick better.

Have used a small ratchet strap for that job, purlin in situ tho.

tomlad · Nov 8, 2019

Thanks for reply

the-mad-welder · Nov 9, 2019

bitwrx said:
Do you use cutting fluid with the rotabroaches? If so, what type?

Just some bog standard oil based cutting fluid, brand escapes me ATM. I buy 5lts of it and decant into a spray bottle to apply it. I'll snap a pic of the brand later

holwellcourtfarm · Nov 11, 2019

Dave W said:
Can I put this here? Lathe involved so I'll get chastised by the bodgers.
bearing had spun on flail rotor shaft and worn badly. Built up with weld and machines back. Too long to hold with tailstock so called in the precision plywood. Worked a treat. View attachment 839869 View attachment 839870 View attachment 839869 View attachment 839870

Just what you need @Dave W

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Dave W · Nov 11, 2019

holwellcourtfarm said:
Just what you need @Dave W

Harrison M450 Straight Bed Lathe, 100" Between Centres 17" Swing With DRO | eBay

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Go away!!!!

B R C · Nov 22, 2019

Simple but a big saving, 16 bean tubes for Dutch openers on CO4, £30 in metal and 3hrs

Andrew · Nov 28, 2019

Involved CAD (Card and Computer), and a laser cutter so definitely belongs here. Small mod for my 4220.

Had some spare profiles cut if anyone wants one.

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