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Just caught up with this Brock - that is one seriously big '049' (one has to be careful with the phraseology on this one ;)) Theres 'scaling' and then some eh? I wonder if that spring actually does the business as well as the small version - any idea what size prop it turns? Ramon

Hi Anthony, not quite, at least not till the anodising's done but should be early next week if the lapping goes to plan ;) Regards - Ramon

Hi Guys, Despite a lengthy interlude today when my friend Lee came over I managed to finish the needle valve assemblies and get a start on the pistons. Courtesy of Lee I now have a lovely set of filing drawers to fit into the wall unit in which to centralise all bits 'engine' - previously most...

Well I don't think I've had the pleasure of being accused of falsifying something before :o :o Sorry to disappoint you RK but theres nothing staged at all. Its just outside the workshop, piece of floor covering over a very tatty old table and a pristine piece of white faced hardboard set...

Hi Guys thanks for your kind comments - it's very pleasing to hear that what's posted is of use to someone. It certainly makes the time posting takes up all the more worthwhile. Not much to report, progress today was a bit like being back at work - sixteen 5BA bolts/screws for the heads and...

Oh I bet that got the creative juices flowing Brock - there are certainly some great projects within those pages Thm:. I have the Dyno earmarked for scaling but the one I'd really like to have a go at - as a sparkie too - is a 10cc version of that Weaver 1cc - ah he says with a bloody great sigh...

Hi there guy's - had a real good day in the shop today- two con-rods, two comp screws and a start on the cylinder head bolts - not much left to do now ;D Prior to doing the Eta engines I had always fought shy of turned con -rods because of the perceived difficulty of dealing with the 'second'...

Brock - I've just found my pencil sketches of taking the dimensions off the original ETA 15d. Despite what I thought It appears I did directly scale the porting dimensions - the drawings show that (but the timing was definitely checked as referred to before) so I guess the answer to your...

Hi Brock, I must admit I've not considered this before as my approach is to scale the engine dimensions based on the ratio of the original bore/stroke to that required and use that factor for subsequent scaling. When it comes to the timing I have tried to ascertain the original engines timing or...

Despite what it may look like Dave - other than looking for a reasonable finish from the tool as it's cutting it's not particularly strived for and certainly not 'worked at' to achieve. I have no means to grind tools other than an off-hand grinder so that's how they are formed. Usually it's...

Hi Guys, Hope those pics convey some of the versatility that that useful bit of kit has. Thoroughly recommended Thm: Thanks for the compliment too Jan but I lay no claim to being a 'Toolmaker'. Machinist? well maybe but 'toolmaker' most definitely not ;) Managed to get on with those cylinder...

Hi Bill, welcome from the UK too. I have a Bentley well under way but currently sadly lacking in input on my part - look forward to seeing yours and the Cirrus too especially as you have machined it from solid Ramon

Hi guys, I've taken some pics for you tonight but first a little background. I began 'model engineering' in 1972 with my first lathe, an ML10. (Well actually there was a Unimat before that but little if anything was achieved on that) This was upgraded to an ML7 after a couple of years and around...

Hi guys, If you can incorporate a dividing device on your lathe Don it's avery worthwhile project to do. Once you have the facility, coupled with a drilling/milling spindle of some kind it opens up lots of possibilities I have a small filing rest too Dave which comes in handy on the odd...

Hi again, heres a little more detail and a few more pics of finishing off these liners. It was intended to do some of these milling ops on the mill but in the end the entire job was done on the lathe using the cross slide drilling/milling attachment. Held on another 'recycled' expanding...

Hi, On another thread one of our esteemed moderators noticed I had a series of holes around my lathe chuck commenting that perhaps I found them useful. Obviously used for dividing they certainly are that but having been there for so long they are never given second thought to. Perhaps though...

Hi guys, well it was a great day out yesterday but one which left me feeling quite tired by it's end. Pleased to say one of my models one it's class but then there were only two entries so no big deal but nice never the less. Obviously felt too tired for this last night :o I'm afraid there was...

Well Tim, I was quite surprised to see this make an appearance again :o - the last thing expected but thank you for your sentiment and kind comment - much appreciated. I hope it proves of use to you. Regards - Ramon

Hi again guys, it's good to hear from you - thought you might like to know that it's arrived at 'halfway house' ;D Managed to find some time this afternoon and evening to finish off the spinners........ ..but first a pic of that collet just in case the description was a bit confusing...

Hi guys, had a good day in the shop today, door open, sun shining in for a while, birds singing, tea on the go - ahh retirement ;D Kicked off by taking a look at lapping out the sleeves. All of the laps made over the years save one have been copper and to the same design - more on them when the...