Small lathe bed dimensions

[pressbrake1]

Hello im thinking’s about doing a deal with the devil and getting a fairly large surface grinder.
Ive given up on getting a dedicated way grinder like a churchill and peripheral wheel way grinders are huge so need £50k to move and groundwork etc.
Ive now turned my attention to conventional surface grinder with vertical sub spindle. This will give oe finish ie peripheral wheel with the disadvantage of having to dress wheel angles.
Im wondering if any nice people here with small lathes say up to student size could give me overall bed dimensions.
I reckon there is a opportunity for sensible priced bed regrinding for the hobbyist who may want to do his own turcite scraping etc though I will offer this.
Ops im not advertising Im trying to find out if work envelope is viable
Thanks

 

[MattH]

I can send you a Colchester Master bed for you to measure and practice on

 

[Spark plug]

I’m next to the Student at work now, what dimensions do you need?

 

[RichardM]

^^^ ditto for Boxford 280

 

[Rig Pig]

I have a Smart & Brown Sable, similar to a Boxford and Southbend 9" so I can stick a tape over that if you like. I also have an Atlas 10" if you want dimensions from that too.

 

[pressbrake1]

I’m next to the Student at work now, what dimensions do you need?

Thanks overall length width height

 

[Shox Dr]

Sounds like you should have bought Brian Caddy out. He had a massive grinder from whoever built Bridgeport clones in Bridlington. Must have been 7mtr long

Any idea what happened to his gear.


Harrison M300 dims are approx 54"x8"

 

[pressbrake1]

Sounds like you should have bought Brian Caddy out. He had a massive grinder from whoever built Bridgeport clones in Bridlington. Must have been 7mtr long

Any idea what happened to his gear.


Harrison M300 dims are approx 54"x8"

Slightly sore subject

 

[Shox Dr]

Slightly sore subject

Sorry didn’t know.
And sorry again, I cant help myself post this picture of my top slide of the M300. Looks like a toy on the bed

 

[gaz1]

Hello im thinking’s about doing a deal with the devil and getting a fairly large surface grinder.
Ive given up on getting a dedicated way grinder like a churchill and peripheral wheel way grinders are huge so need £50k to move and groundwork etc.
Ive now turned my attention to conventional surface grinder with vertical sub spindle. This will give oe finish ie peripheral wheel with the disadvantage of having to dress wheel angles.
Im wondering if any nice people here with small lathes say up to student size could give me overall bed dimensions.
I reckon there is a opportunity for sensible priced bed regrinding for the hobbyist who may want to do his own turcite scraping etc though I will offer this.
Ops im not advertising Im trying to find out if work envelope is viable
Thanks

ive worked out a way that could do both surface grind and also be a surface planner in one

 

[pressbrake1]

Sorry didn’t know.
And sorry again, I cant help myself post this picture of my top slide of the M300. Looks like a toy on the bed
View attachment 208697

Brians churchill was actually a small one!
His Thompson grinder came from myford

 

[pressbrake1]

ive worked out a way that could do both surface grind and also be a surface planner in one

Trouble with converting planers is open ways, coolant control etc
Early Slideway grinders were converted planers

 

[gaz1]

from what homework on the subject ive done

ive looked at cydrical grinders they can be done easily but you still need the floor space and can only grind the top of them

for sides and ways of a lathe you need something like a metal planner or abstract of a surface planner/grinder unless you goto a really big machine which can surface grind lathe bed ways

from watching 2 days to grind a lathe bed and ways

 

[Spark plug]

The square head Student measures as follows:

Overall length of bed 57”
Length of ways 40”
Height 12-1/2”
Width 9”

 

[pressbrake1]

from what homework on the subject ive done

ive looked at cydrical grinders they can be done easily but you still need the floor space and can only grind the top of them

for sides and ways of a lathe you need something like a metal planner or abstract of a surface planner/grinder unless you goto a really big machine which can surface grind lathe bed ways

from watching 2 days to grind a lathe bed and ways

Cant see how a cylinderical grinder is much use tbh

 

[pressbrake1]

These are the grinders Im looking at

 

[gaz1]

for smaller parts yes an advantage

but if making something like a planner id go either down the route of lathe beds or using thick steel beams that are leveled

to create the bed for the sides there design was cast iron

first 2 are the first designs of planners the 3/4th pic is a home made planner ive spotted on the net

https://www.gracesguide.co.uk/Early_Planing_Machines

 

[pressbrake1]

Sorry for repost this is to show Slideway grinding on conventional machine

 

[Pete.]

for smaller parts yes an advantage

but if making something like a planner id go either down the route of lathe beds or using thick steel beams that are leveled

to create the bed for the sides there design was cast iron

first 2 are the first designs of planners the 3/4th pic is a home made planner ive spotted on the net

https://www.gracesguide.co.uk/Early_Planing_Machines

View attachment 208703 View attachment 208704 View attachment 208706 View attachment 208707

A guy I know owns this:

And this:

 

[pressbrake1]

This is my Rockford hydraulic Planer 6x2 table