Alan, 17" centres (or thereabouts) for the two tinkerbells I am currently building. Welded them together in pairs then bored them out. Peter ----- Original Message ----- From: "Alan Stepney" <alan@xxxxxxxxxxxxxxxx> To: <modeleng@xxxxxxxxxxxxx> Sent: 16 December 2008 20:27 Subject: [modeleng] Re: Conrod boring Peter, Out of interest, what size were they? Alan ----- Original Message ----- From: "Peter Beevers" <peter@xxxxxxxxxxxxxx> To: <modeleng@xxxxxxxxxxxxx> Sent: Tuesday, December 16, 2008 6:41 PM Subject: [modeleng] Re: Conrod boring The size of the ones I've just done, the lathe wasn't an option. So they were water jet cut close to size, and then finished in the milling machine with a boring head before pushing the (ball) bearings in. Peter MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line. -- No virus found in this incoming message. Checked by AVG. Version: 7.5.552 / Virus Database: 270.9.18/1850 - Release Date: 15/12/2008 17:04 MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.