Brilliant stuff! I am a few steps behind you the same casting kit and have similar machines. I wouldn't have got this far without your videos. We must compare finished items when we get there!!
Hi Kevin, it's great to hear that my videos have helped. Starting to get the exiting bit now! I do hope mine doesn't run like a three legged dog. Good luck. Andrew
Hi Peter. Yes, the crosshead seemed to work out ok. I've just started to look at the piston but I'm a little confused. It talks about 1/16" labyrinth grooves but I thought they worked with oil? If I go with those I guess I will have to make my own tool out of hss. Any thoughts? Cheers Andrew
Andrew, I've never heard them called 'labyrinth grooves before but I suspect they are just a shallow flat bottomed groove cut with a parting tool in the lathe. Are piston rings supplied? It's usual now on small engines to use 'Viton' piston rings and cut the groove to match the intended ring but I prefer the old fashioned way of making a ring from oil soaked graphite string and always manage to get a nice seal that slides smoothly. I'd be be inclined to decide for certain what what you will you as a piston ring before you cut the groove as 1/16" may not be appropriate. Here is the string I use, its cheap and will be ideal for sealing the piston rod gland even if you don't use it as a piston ring. :- www.maidstone-engineering.com/graphite-yarn-1-16-twist-approx-4ft
Tubal Cain is a first class teacher,I think that makes you a first class learner! I have 10 hours work left to retirement and am going to be watching your videos first as I have a bought half built 10v and hope to get somewhere near your standard. I wondered where your bellows came from as on my mill they literally fell to bits in 5 minutes. Now yours arent fitted anymore.Ah well I just use damp course material now or occasionally bits of paper! Jonathon
Thanks Jonathan. I find it a great retirement hobby because it keeps the old brain active and it's also a real challenge for me. I don't know how I ever had time to work full-time! I got the bellows from arceurotrade. I think I went for the largest one with a view to cutting it down if I needed to. From memory I don't think I needed to reduce the size. I then just tapped some holes in the mill and attached it. It works a treat. The 10v is viewed as a starter engine but I have found it more challenging than the S50. If you haven't already, it's worth joining the model engineering forum and the model engine maker forum. A great source of information and if you have any questions you can generally get replies within a few hours. I hope the 10v build goes well. If you have any questions regarding any aspect of my build, just leave a message and I will try to help. Happy Christmas and have a great retirement. Cheers! Andrew
Thank you. No real reason for not using the lathe for the boss, other than I might have had my blinkers on. I guess it might have been a better method. Cheers Andrew
Hi Tony - I agree entirely. I very recently snapped a 3mm cutter doing just that. I've only recenty come to understand what 2 flute slot drills are. Just purchased a few of various diameters and now plunge cutting is a breeze. Many thanks for pointing this out. All the best. Andrew
Hi Brian It's a 70mm wide precision tool vice from arceurotrade. Part number 130-040-01900. About £70 including delivery. I've been very happy with it and it fits the sx2p mill well. Hope that helps. Cheers Andrew
It's always good to have had the extra material to take off. Lots harder to add on! 👍
Ha ha, you said it mate!
Cheers
Andrew
Brilliant stuff! I am a few steps behind you the same casting kit and have similar machines. I wouldn't have got this far without your videos. We must compare finished items when we get there!!
Hi Kevin, it's great to hear that my videos have helped. Starting to get the exiting bit now!
I do hope mine doesn't run like a three legged dog.
Good luck.
Andrew
Another great video Andrew, I look foreward to seeing them
regards John
Hi John
Thanks for the feedback. I hope that 2 or 3 videos more will see it's completion.
Cheers
Andrew
Cool, nice job and great video,please keep doing what you're doing...Cheers Sir !
Thanks Greg. Hopefully the little components of this engine will start to come together soon.
All the best.
Andrew
good video, wondered if there is a reason not to turn the boss in the 4jaw on the lathe? keep up the good work.
Nice one Andrew, it's taking shape :-) The crosshead looks to be a nice snug fit.
Hi Peter. Yes, the crosshead seemed to work out ok. I've just started to look at the piston but I'm a little confused. It talks about 1/16" labyrinth grooves but I thought they worked with oil? If I go with those I guess I will have to make my own tool out of hss. Any thoughts?
Cheers
Andrew
Andrew, I've never heard them called 'labyrinth grooves before but I suspect they are just a shallow flat bottomed groove cut with a parting tool in the lathe. Are piston rings supplied? It's usual now on small engines to use 'Viton' piston rings and cut the groove to match the intended ring but I prefer the old fashioned way of making a ring from oil soaked graphite string and always manage to get a nice seal that slides smoothly. I'd be be inclined to decide for certain what what you will you as a piston ring before you cut the groove as 1/16" may not be appropriate. Here is the string I use, its cheap and will be ideal for sealing the piston rod gland even if you don't use it as a piston ring. :- www.maidstone-engineering.com/graphite-yarn-1-16-twist-approx-4ft
Andrew, see page 12 here. www.modelenginemaker.com/index.php/topic,8050.165.html
Thanks Peter - you saved my bacon! I will definately go with the graphite string solution.
Cheers
Andrew
Think the string was how rings were made years ago on real engines, once it is packed in tightly it seals well and holds lubrication well :-)
Tubal Cain is a first class teacher,I think that makes you a first class learner! I have 10 hours work left to retirement and am going to be watching your videos first as I have a bought half built 10v and hope to get somewhere near your standard.
I wondered where your bellows came from as on my mill they literally fell to bits in 5 minutes. Now yours arent fitted anymore.Ah well
I just use damp course material now or occasionally bits of paper!
Jonathon
Thanks Jonathan. I find it a great retirement hobby because it keeps the old brain active and it's also a real challenge for me. I don't know how I ever had time to work full-time!
I got the bellows from arceurotrade. I think I went for the largest one with a view to cutting it down if I needed to. From memory I don't think I needed to reduce the size. I then just tapped some holes in the mill and attached it. It works a treat. The 10v is viewed as a starter engine but I have found it more challenging than the S50.
If you haven't already, it's worth joining the model engineering forum and the model engine maker forum. A great source of information and if you have any questions you can generally get replies within a few hours.
I hope the 10v build goes well. If you have any questions regarding any aspect of my build, just leave a message and I will try to help.
Happy Christmas and have a great retirement.
Cheers!
Andrew
Thank you. No real reason for not using the lathe for the boss, other than I might have had my blinkers on. I guess it might have been a better method.
Cheers
Andrew
Hi Tony - I agree entirely. I very recently snapped a 3mm cutter doing just that. I've only recenty come to understand what 2 flute slot drills are. Just purchased a few of various diameters and now plunge cutting is a breeze. Many thanks for pointing this out.
All the best.
Andrew
Nice job
Cheers mate!
Brian g Fisher
Hi Andrew I've been watching your interesting video and wondered what make of vice you use??
Brian
Hi Brian
It's a 70mm wide precision tool vice from arceurotrade. Part number 130-040-01900. About £70 including delivery. I've been very happy with it and it fits the sx2p mill well.
Hope that helps.
Cheers
Andrew