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A simple angle iron/concrete lathe (more detail)

(10)
 Hi Pat The  leadscrew on the outside will work fine. I have bee testing it on my testbed. I have nmade a shft with  8 tpi   I turned the spindle by hand
keith gutshall
10
posts
6:16 PM

Iron ore and other minerals, coal, etc.

(5)
Hello Getting access to viable deposits of anything is probably beyond the abilities of most folks , and in Africa less than most . Might be easier to pool
Aebe mac Gill
5
posts
Jun 29

George Ewen article

(3)
Thanks Chris
rigmatch
3
posts
Jun 27

2.8 Billion small farmers both need and can afford this.

(9)
Abe, Yes, but we are mixing projects: The pre-cast form would have all the fitments, channels, grooves cast in. I plan to use pre-cast, ready made concrete
Lance Eggleston
9
posts
Jun 23

100 buck (plus an engine block), simple, big lathe

(3)
Thanks Keith The reason I used the 2 pieces of angle iron was to keep the height of the ways the same so that a piece of float glass could be used to level the
rigmatch
3
posts
Jun 21

nesting angle iron

(4)
problem solved Just grind the taper out of the inner ends of the shoes and epoxy in thick wear strips. The wear strips will be the only part of the shoes in
rigmatch
4
posts
Jun 18

Very simple, low cost, screw cutting lathe

(3)
Since the carriage could be simply lifted off (after releasing the lead screw) It would be simple to drop on another carriage that had a vertical, full size
rigmatch
3
posts
Jun 11

An accurate multimachine that can be built in primitive conditions.

(6)
Thanks Ian On Sat, May 30, 2015 at 10:21 PM, Bill Wood steamingbill@gmail.com
Bill Wood
6
posts
May 31

Don't know if this is a repost

(4)
ground polished shafting is easy to come by in many area. No need to ship it from the US (most of us are there presumably). Perhaps we could contract w/someone
Chris Tofu
4
posts
May 28

scaling rules

(19)
Great advice Ian, I'm always thinking ahead of myself. Stability and rigidity should be foremost when considering certain design aspects. Thanks, Skip Sent
Skip Johnson
19
posts
May 24

first principles

(3)
Oh, there are images at the end. Yep, that really helps the mind's eye. KLN
k15n1
3
posts
May 20

Hollow spindle

(16)
If you haven't yet, you all really should read the document that Ian uploaded. Great resource. Thanks Ian! I'm using the technique you outlined to build a
Philip X. Diaz
16
posts
May 16

Metal resources, aluminium blocks

(5)
There is something special about cast iron, beyond the usual mass. Besides stability (after aging and dealing with skin effects) it absorbs vibration very
k15n1
5
posts
May 7

plate vs rails, single vs double ways

(5)
KLN, If you mean would foregoing extended wings on a low precision home made lathe be acceptable, probably so. At the same time, it's well to keep in mind
anthrhodes
5
posts
May 6

shop smith metal late YES oor NO

(5)
Yes they can be setup for milling. Model 10e or 10ER as these had thicker tube. Read somewhere they used them in manufacture of latter models. Try Shopsmith
Kevin Conroy
5
posts
May 6
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