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Hi, Ralph,
The photos are deceptive, in that each of the covers is one piece of a spring-type material manufactured as a spiral roll.? Each one collapses and expands as you move the carriage from left to right.? I have just answered a similar question I received via PM, which also asked how they were installed, so I will copy and paste that here to be complete. My lathe happens to be a Real Bull, not a Sieg, and I am not sure whether this kit would work on a Sieg.? (The right end of the lead screw has a different termination in the Sieg than the Real Bull, though it can be modified to match.)? But at any rate, I got the lead screw cover kit from:
?
Amadeal Limited
Unit 20, The Sidings
Hainault Road
Leytonstone
London, England
E11 1HD
Email: info@...
?
Their shipping document lists it as ¡°CJ18 Leadscrew Cover Kit¡±.
?
At the time I bought it (early 2018), it was around US$ 68.00 plus about US$ 24.00 shipping and handling; I don't know what the price is now.? Yes, it is somewhat expensive, but part of the reason is that it includes a new apron.? (The old Real Bull apron has a number of curved surfaces on the headstock side.? This newer one has flat surfaces, already drilled and tapped for mounting the cover.)
?
Basically, the installation is fairly simple.? You replace the existing pillow blocks for the lead screw with the supplied pillow blocks, which have flanges for the spring loaded covers.? The left pillow block has a pipe-like tube that runs under the electronics, preventing any contact between electronics and lead screw, which was a feature I appreciated.? Two larger diameter flanges mount on the new apron; the old apron is removed, the gears, handle, bearings, etc. transferred to the new apron, and reassembled.? During final assembly of the lathe, the covers themselves, which are held in a closed position by a retaining clip, are slipped over the lead screw.? Once everything is aligned, (I had to jockey the flanges slightly to make sure they did not contact the lead screw), you can remove the clips for the covers while holding them closed, and then allow them to expand slowly.? (I wore gloves for this, but it proved not to be necessary.)? The expansion of the covers holds them in place, and causes them to collapse as the carriage moves from one end of the lathe to the other.
?
I have attached some photos that I hope are of some assistance in making the process clearer.
?
I don¡¯t think you can see it in the photos, but at John's suggestion, (as he had already done a similar mod), I added thrust bearings to both sides of the right-hand pillow block to reduce the friction for the ELS operation, but this isn¡¯t necessary just for installation of the covers.? I had to machine the right hand pillow block to make space for the thrust bearings.
I hope this helps, Ralph... Regards, Charlie New Jersey, USA |
I Googled telescoping tubing, got some results but not really a good variety in sizes. Now I am "thinking" about 3D printing the various tubings. I am seeing at least 17 different sizes of tube on charlie's lathe. Ralph On Sat, Aug 10, 2019 at 4:59 PM Ralph Hulslander via Groups.Io <rhulslander=[email protected]> wrote:
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Clausing 8520, Craftsman 12x36 Lathe, 4x12 mini lathe, 14" Delta drill press, 40 watt laser, Consew brushless DC motors and a non working 3D printer |
Charlie, where did you get the leadscrew covers? oh dear I might have asked you that before, oh well it is good to have it reposted in this new forum. I wonder if I might make them, actually, if I could buy the telescoping tubing I would have enough left over to make up sets for others, hmm. Ralph On Sat, Aug 10, 2019 at 4:10 PM CLevinski <clevinski@...> wrote: Well, looks like the pictures didn't attach, either.? Let me try again with the DRO photos here... wow, now I can insert them.? Well, here are the pictures, anyway... --
Clausing 8520, Craftsman 12x36 Lathe, 4x12 mini lathe, 14" Delta drill press, 40 watt laser, Consew brushless DC motors and a non working 3D printer |
Hi, W@ayne,
?
My pleasure... though I was down in the shop installing the lathe carriage DRO this afternoon (see pics below) and I realized that I didn't include DROs in the list of larger items.
?
Technically, you don't really need them.? But the way the ELS system works, you "tell" it where you want to go to by moving the cutting tool to that point and pressing a button to store the location.? The question is, how do you know where the desired point is?
-- I avoided getting DROs for the lathe for years, because I felt I didn't really need them.? I got by with a calibrated stop, or by using my compound aligned with the carriage.? With the stop, I would touch the first surface I planned to cut, lock the carriage, position the stop against the carriage, lock the body of the stop in place, back off the carriage, and then turn the calibrated portion of the stop the desired distance.? It only gave me about 3/4 of an inch (19 mm) but was accurate to around .003-.004 inches.? I used a similar technique with the compound.? But I removed the compound and replaced it with a solid plate for more rigidity, and the stop only works if the last bit of the distance is fed manually, so... DROs. (Huh... the system gave me the error "SyntaxError: Unexpected end of JSON input" when I tried to insert the photos.? I tried the photos that I posted this morning and got the same error.? So something is hinky, but I have attached the photos instead of inserting them.) Regards, Charlie New Jersey, USA |
Re: ELS project
#RELS
Charlie ,?
Thank you so much for your answer ! That¡¯s exactly what I was looking for . I feel I can now watch and learn with an idea of the cost involved . ?W@yne |
Re: Joining the group
Thanks Lewis Should all be up and running soonest. ATB John On Sat, 10 Aug 2019 at 05:01, Lewis Cobb <lewishcobb@...> wrote: Hi Guys - |
Re: ELS project
#RELS
W@yne,
That is an excellent question! But I am afraid if I add it all up, I will pass out. I will *guess* that it would be between US$400 and $800 total, depending on how much recycled materials and equipment you can use.? I think the most expensive items are the motors, encoder, Arduino board, power supply, and motor drivers.? There are a lot of smaller items, too. I ordered a number of these from Banggood in China (did anyone in China run the name by English-speakers before adopting it???) for very reasonable prices but long 3-4 week deliveries. -- Regards, Charlie New Jersey, USA |
Re: ELS project
#RELS
Charlie Thanks Would you give w@yne a mass or minus cost to convert to ELS. Guessing he is your side of the pond, naturally prices vary where ever you live and what quality of parts you buy. Cheers and later John On Sat, 10 Aug 2019 at 14:04, CLevinski <clevinski@...> wrote: Hi, Bill, |
Re: ELS project
#RELS
Hi, Mark,
It's ok with me, but John has some more impressive photos from his shop that might be better.? I especially like the one of him turning a 7 1/8" diameter wheel for his Minnie tractor.? Now THAT is using all the available swing! -- Regards, Charlie New Jersey, USA |
Re: ELS project
#RELS
Hi, Bill,
I feel the same way, though it took me quite a while to convince myself that I wouldn't screw up the lathe with my limited machining expertise.? John was a big help to me, both in machining advice and building my machining confidence, which is why I am so happy that he started this group so he can help others! I have already made a number of mods to the lathe, but this is the most extensive.? It seems, like everything I do, to be taking forever... I had hoped to be finished in April. -- Regards, Charlie New Jersey, USA |
Welcome all.
I am still trying to find my way around the .io forum, so please forgive me if I have not answered all requests to join and
replied personally.the? last count of new members is 38, in 1 day, very pleased. I should be fully "savvy" oops within a few days.Where's Charlie L I cannot believe I have received the interest from so many a lot of old various forum members I have known in the past, and between us all? we can sort out most if not all digital problems of fixing this or that to our hobby machines.I am very humble when I write this.Thank you for your support, I will not let you down. We also have the advantage of Mr Charles Levinski being on board with us and has taken on the duty of moderator.USA side.Brilliant. Charlie, as many may know has been a close associate of mine for over 8 years, and is a co author of many articles in HSM and Digital machinist that I have written. I respect his knowledge of electronic equipment and he will be great resource for futuristic projects in the future, also he is?a meticulous machinist with a Real Bull lathe and mill.Currently he is putting putting the wraps (wiring that is) on a full embracing ELS system. Watch this space. I intend to send regular brief updates of .io group information on how we are growing as a family. I will shy away from regular post interventions as that is what a forum is about, bouncing ideas?off each other. At the same time I will help where I can and answer as any other group member questions reference digital or manual operations of our toys. Thanks John |
Re: ELS project
#RELS
Total newbie here . What would be a rough estimate of the cost of setting something like this up ? I realize there are many variables to consider . Are we talking hundreds or thousands of dollars for a basic working set up ? Just trying to see if this is even feasible for me. Thank you. W@yne
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Re: Welcome to the new digitalhobbyist forum
Bruce? Similar background, I was programming CNC lathes via a punch tape typewriter. You make an error and basically it was start all over again. Splicing paper tapes together never worked for me. At about the same time, my company invested in a IBM 381 ? replacing the dual floppy drive computer,? and we were all saying at that time who wants 40K of hard disc storage. How times change, so glad I just go with the flow, and don?t fight it. Best regards John On Sat, 10 Aug 2019 at 05:29, Bruce J <bruce.desertrat@...> wrote:
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Re: Welcome to the new digitalhobbyist forum
Bruce J
¿ªÔÆÌåÓýI think this is the inevitable outcome of the original "computer age¡± folks (grew up in the 70¡¯s) hitting ¡°able to afford the toys because I¡¯m old and my house is paid off¡± age.?I started with fortran and punch cards, back in the day¡.now I fling bits around for a living and¡bits of a different kind for fun. Always happy to join the two.?
--?
Bruce Johnson The less a man knows about how sausages and laws are made, the easier it is to steal his vote and give him botulism. |
Re: ELS project
#RELS
MC Cason
¿ªÔÆÌåÓýNot that I don't like elephants, but maybe a different group
photo would be in order???? With Charlie's permission, I would
like to submit his third photo as an interim image. ---Mark
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Re: ELS project
#RELS
On Fri, Aug 9, 2019 at 12:14 PM, CLevinski wrote:
based on the software concept of a Russian gentleman whose name I don't knowOleg, I think... Is this it?? |
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