But in reality there are no perfectly rigid bodies and things do flex and sag, so adding more constraints can be used to overcome those problems, however it's not without its own problems, like binding when things aren't perfectly aligned. Anything more is technically over constrained. Kind You would need one rod to fix the bed in X and Y, and another rod to keep the bed from rotating around the first rod. I am probably going to find others who I will need to supply me, like Simply Bearings, i use them a lot when I rebuild model Helicopter engines and things.Īgain, I thank you all for your input, it has blown me away. I think the other thing is the availability of the parts, I have mentioned Oozenest and E3D and of course Duet3D! I also prefer to use UK Suppliers, I would never buy a clone of anything, I have seen a £3k helicopter go down because the guy thought the £70 receiver was as good as the £275 receiver. More Duet boards and questions on the forum!ĭo not hink I could justify the Diamond 5 colour head has on his rig. Maybe after I have built one from scratch i would have a better I think you are right, i will go for cut to order, makes sense, I do not think my multitool would be too good for accuracy!Īt the moment I am learning towards the BLV as there are alot of metal parts I can source in the UK like the 90 degree metal brackets and I prefer metal to plastic, especially for the - I think you are right Railcore might be a non starter as I would definately want the aluminium parts after reading the blog about the plastics giving A tool changer, lots of money! I think I will stick with a 2 colour head first! I am good at building computer networks and model helis and programming control systems to control houses. I honestly do not know what I would print with something that I am not clever in design, better at building things with a box of bits and would not know where to start designing my own. I started going through the Railcore BOM and started putting prices together.Īlso I was looking on Openbuilds and other sites before I had all these superb That is a massive build and must say it does look impressive. The RatRig, Yes I have to agree it would take a while for the parts to turn up and possible customs charges. I have watched some of your videos and was amazed especially when you put the counter balance on. They are about 1.5 hours away so I might take a run out there and go through whichever build I am going to do and save a delivery charge. Thank you all for your input, I REALLY appreciate - I would use Oozenest for my extrusions and have already been in touch with Ryan today asking if they can cut the rails if I gave them the dimensions. You'll need lots of M5 bolts so buy them from here. Also, as you have a printer at the moment, and if a kit includes printed parts, then it would make a lot of sense to print those yourself. So maybe buying the extrusion - either cut to length or otherwise then sourcing the rest of the hardware yourself might save some money but cost some time (so it depends which you have most of). (Disclaimer - Ryan from Ooznest has been generous to me in the past but despite that, I would still highly recommend them).Īs a general rule, people who spend time sourcing parts to put kits together for sale, usually put a bit of a mark up on the parts to pay for their time. Ooznest on the other hand are super fast and very efficient. Delivery from RatRig is very slow (in my experience and that of the user who's thread I linked to). Prices vary a bit depending on Euro to GBP exchange rate but there isn't much in it.
There is another user on these forums building a RatRig kit that you might find informative. Many of them have build logs and include BOMs. What tools do you have? Can you cut aluminium extrusion accurately to length and square? If so, you could look at some of the OpenBuilds designs.
0 kommentar(er)
