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« Last post by Brian Rupnow on September 29, 2023, 11:12:19 PM »
Today I machined the new cylinder head. There are so many set ups required to build this cylinder head that I had to make a list of operations before I started machining it. I'm happy with the way it turned out. None of the steps were terribly difficult---it's just that there were so many of them. 
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« Last post by crueby on September 29, 2023, 10:32:57 PM »
Okay, the IP cylinder now has a full complement of legs to stand on!  Next time I'll finish tapping the rest of the long row of holes around the top cap, then will get started on the steam chest. The base it bolts to is there, but it still needs the block that has all the ports and passages, along with the side walls that will form the chest cavity and hold the valve gland and the cover. All tht will stick another inch or so out the side of the cylinder.
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« Last post by crueby on September 29, 2023, 09:57:53 PM »
Wow! That Mk4 Sounds pretty promising!  
How long was your lead time for the Mk4 upgrade kit?
Kim
I ordered it way back on April 4, they were taking pre-orders before it was ready to ship. It was delayed several weeks at the last minute when they realized they had several versions of the power supply and cables from the early mk3 printers, thats all sorted now and they are getting back to a more normal shipping schedule. The assembled printers say a 2-3 week lead time, for the assemble-it-yourself kit they are saying 4-5 weeks. For the Mk3 to Mk4 upgrade kits, they are saying they will not process new orders till sometime in November, they are buried in orders for the full printers and are adding more staff. If I was buying the printer new, I'd be really tempted to go with the pre-assembled one. More money, but the assembly is not easy. The manual is terrific, but there are a LOT of parts, its around a 3 day build at 4 hours per day.
Thanks for the info, Chris. Yeah, just checked the website and I see what you mean... not processing new orders till November. I'll have to get mine on order soon if I'm going to get it by Xmas!
I actually found the build very fun! It wasn't overly difficult, just involved. And anyone who does the stuff we do here on our model builds should have no problem with the printer build. And I learned so much about the printer by building it! I'm actually looking forward to doing the Mk3->Mk4 update myself too. I think it will be just as fun!
Very cool sub! Can't wait to see how it plays with the others 
Kim
If you can't get it in time, other option is to buy the mk4 kit, and either let it sit next to your mk3 and have races, or sell the mk3. Hard to say when they'll actually take new upgrade orders, they have a big backlog of the preordered ones to get through. After lunch I started the first hull section printing, its already more than half done. The movements are all very noticeably faster, surfaces are smoother, even at the .2mm layer height.
4
« Last post by Kim on September 29, 2023, 09:32:42 PM »
Wow! That Mk4 Sounds pretty promising!
How long was your lead time for the Mk4 upgrade kit?
Kim
I ordered it way back on April 4, they were taking pre-orders before it was ready to ship. It was delayed several weeks at the last minute when they realized they had several versions of the power supply and cables from the early mk3 printers, thats all sorted now and they are getting back to a more normal shipping schedule. The assembled printers say a 2-3 week lead time, for the assemble-it-yourself kit they are saying 4-5 weeks. For the Mk3 to Mk4 upgrade kits, they are saying they will not process new orders till sometime in November, they are buried in orders for the full printers and are adding more staff. If I was buying the printer new, I'd be really tempted to go with the pre-assembled one. More money, but the assembly is not easy. The manual is terrific, but there are a LOT of parts, its around a 3 day build at 4 hours per day.
Thanks for the info, Chris. Yeah, just checked the website and I see what you mean... not processing new orders till November. I'll have to get mine on order soon if I'm going to get it by Xmas! I actually found the build very fun! It wasn't overly difficult, just involved. And anyone who does the stuff we do here on our model builds should have no problem with the printer build. And I learned so much about the printer by building it! I'm actually looking forward to doing the Mk3->Mk4 update myself too. I think it will be just as fun! Very cool sub! Can't wait to see how it plays with the others Kim
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« Last post by crueby on September 29, 2023, 09:13:14 PM »
Looking really good and getting there slowly. Lovely
Willy
Thanks Willy! Glad you are still following along and hope you are doing better!
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Looking really good and getting there slowly. Lovely
Willy
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Hi All , I will be getting a lift to Forncett but with only one model.....The S.M.E.E. from London will be there with some of their models celebrating 125 years of their presence !!!
Cheers
Robert willy
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« Last post by cnr6400 on September 29, 2023, 08:24:01 PM »
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« Last post by crueby on September 29, 2023, 08:14:04 PM »
Just finished getting the legs on the cylinder, fitted a little shim wedge for that one spot I cut too much off. Ran a bead of soft solder around the joint to smooth it in. Will let that cool, clean up, and post pics later.
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« Last post by crueby on September 29, 2023, 08:12:11 PM »
That will be an interesting submarine, or low landing plane?
Chris, what is the build plate size on that printer?
Tom
It will print 250mm x 220mm x 210mm maximum. They are also developing a larger one, don't know when it will be out. All the details on their website.
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