Build a new head for a BP series 1...

[m_c]

I would of thought a ribbed design would be better for the main section. That way you could get a reasonably nice L/Boomerang type shape going from the main body up to the vertical surface for the rails.

I could be wrong, but I have something in my mind telling me U-shapes are just about as good as an enclosed box section, but it's not really something I know that much about.

I think given the size and potential cost of the project, I'd be spending some time drawing things up in 3D software and running some FEA to see what works/doesn't work. A counter balance might be a reasonable idea, but a couple gas struts would probably be enough and reduce complexity. A quick google shows struts are available with up to 2500N (~250KG) force for not that much money (14mm rod with 500mm of stroke is available for £40+VAT from - https://gasstruts.metrol.com/fixed-f...ut-f-sd04.html )

[swarf-boy]

Just to throw you a slight curve ball,

I have a manual series 1 that I fully stripped and rebuilt a few years back, so I an very familiar with it.

I recently purchased a series 1 interact.
The head and 90° bend casting, bolt onto a std serues 1 column, with rhe usual 4 bolts ( and 2 dowls).

If you can find one, it should go straight on. And they are usually QC 30 too��.

They are a variation of the vari speed head, but most people (my self included at some point) pull out the vari pulleys and fit timming pulleys. ( usually 2:1 ratio unless you alsways want increased high speed. Possibly uprate bearings too) and speed control via VFD, controlled by CSMIO ( as you probabky already do.


Also, fit the auto oiler too, id you go this kind of direction.

[Davek0974]

Thanks, thats an interesting thought. Not sure it will get me where i want to be fully though as the head still uses a quill so has the usual splines etc and no option of an ATC IIRC?

[swarf-boy]

Ok 1 more thought....
The 90° bend casting has a flat verticall face.
This woumd make a good solid mount for anyrhing you could bolt to it. And if it's from a scrapper, it will be one if the few parts that could not be worn.
A much more solid option than the ram and knuck joint affair.
( but then you loose the tilt option if course)

[Davek0974]

That sounds good, i've been trying to find a picture of the part in question but not got one yet.

I need the vertical face to be way back where the front of the round column/body is in order to get a decent linear rail system in as well as a motor and a spindle cartridge.

[swarf-boy]

The vertical face comes forward by 32cm from the top round part of the column.

[Davek0974]

Ok, thanks.

Its way too far out for my plan to work on that, good idea though.