Recent Posts

Pages: 1 2 [3] 4 5 ... 10
21
New from Old / Re: New Cylinder and Piston for TS350 Petrol Saw
« Last post by appletree on May 24, 2018, 04:01:51 PM »
I have an old a Ts350 and 2 of the chains saws on which it is based the 08s. Keep threatening to covert 1 of the saws into a TS350 I have loads of dead TS350 front ends covers left over from our hire fleet.
There are lots of safer (chain brakes) saws available, lighter too.

Phil 
22
New from Old / Re: The Sequel - Oh Blimey I bought a CNC Lathe (Beaver TC 20)
« Last post by awemawson on May 24, 2018, 03:46:31 PM »
Just come off the phone from a long chat with the Renishaw Probe seller - he still works at the Uni . . . .

. . . . the manuals are mine and being posted tomorrow. He was last machining PTFE on it, and that was 2010 - the swarf from it is still in the machine  :clap:
23
New from Old / Re: New Cylinder and Piston for TS350 Petrol Saw
« Last post by awemawson on May 24, 2018, 03:41:03 PM »
Yes I have an ancient Stihl 023 chainsaw that I replaced the barrel and piston on a few years back - pretty well identical
24
Project Logs / Re: Induction heater project
« Last post by eskoilola on May 24, 2018, 01:42:49 PM »


This is my insight of the inputs and outputs of the controller.

The inputs are the usual stuff the coil presence detection being a little bit challenging. Other that that nothing new here.

On the output side the FAN might be controlled by medium frequency PWM which in turn would be controlled by the coolant temperature vs. ambient temperature. It is idiotic to blow air through the radiator if that air does not cool it down.

The Driver power will bw controlled by low frequency PWM - maybe 20Hz. Might be higher if the driver can cope with that one.
25
New from Old / Re: New Cylinder and Piston for TS350 Petrol Saw
« Last post by hermetic on May 24, 2018, 01:09:17 PM »
looks like virtually the same engine as on my venerable Stihl chainsaw, completely agree with you on the circlips, those bends are far too tight, and you can imagine the mess if one of those broke off!
26
New from Old / Re: The Sequel - Oh Blimey I bought a CNC Lathe (Beaver TC 20)
« Last post by hermetic on May 24, 2018, 01:03:07 PM »
Have we done the Balding Beaver joke yet Andrew?
27
Project Logs / Re: Induction heater project
« Last post by eskoilola on May 24, 2018, 12:24:25 PM »


The radiator (oil cooler) arrived today. It is exactly the size and shape I expected it to be. Very nice unit.




The threads might be BSP but at least they are not tapered. That would have made fabricating the adaptor a manly experience. I can see that the adaptor actually consists of two parts. The nut and the hollow piece that makes a seal with the taper. Must be made out of aluminium (which I hate) to avoid electrolytic corrosion.


Two 9 centimeter blowers side by side pushing air through that one should create cooling enough for the heater. I have also planned to create a water cooled heatsink for the rectifier as the water is already available. The rectifier produces almost 100 Watts of heat when operating at full power. Arranging a separate air cooled heatsink for those would consume a lot of space and would require yet another fan.


The fets have their individual heatsinks at the moment. I assume that those could also be water cooled. If the capacitors can survive with replacement air cooling then this would cancel the two fans on top of the driver.


Basically the water could be tap water as this is a low voltage driver but I will use deionized water in order not to collect calcium and iron (our water has much of that) and other salts that can be found in our tap water. Rain water might also do it. Lots of that during a typical finnish "summer".
28
New from Old / Re: The Sequel - Oh Blimey I bought a CNC Lathe (Beaver TC 20)
« Last post by Pete. on May 24, 2018, 12:23:02 PM »
Man that's what I call fall over in Doris' sty and coming up smelling of roses :D
29
New from Old / Re: New Cylinder and Piston for TS350 Petrol Saw
« Last post by appletree on May 24, 2018, 11:19:47 AM »
Another thing to watch out for ,is the in tank fuel pick up its like a clunck fuel pick up as used in model aircraft. The tube is a specially moulded affair which is made of a very flexible neoprene/silicone type rubber over time and allow air to seep in.
Did you fit a new carb gasket/s these have port holes which connect the crankcase to the pumper carburettor. Lastly are the carb spindles badly worn, they often are on disc cutters because of the "grinding compound"


Phil
30
CNC / Re: DDCSV1.1 4 Axis controller
« Last post by Benedikt on May 24, 2018, 11:18:16 AM »
 :update:

Good evening,

I just wanted to post this small update since it might affect some of you too (especially those who are running a small company and have a public website).
EU GDPR laws are going into effect as of tomorrow. I made sure to change http://config.pandora-cnc.eu/ to hopefully comply with these rules (and I am thinking about taking down the rest of the site for either an undefined amount of time or until I can confirm that it passes these new laws). It's not commercial, but I since I can't tell if it does still apply, I have made sure to change it anyways. You may have to change your website too to avoid legal trouble and hefty fines.
I have removed any local storage functionality, removed the optional analytics that helped me improve the website from time to time and removed features like continuing editing or previewing the generated file. Configuration files can still be uploaded and edited online, but after submitting in some browsers, editing cannot be continued and the result can only be downloaded and previewed with a text editor. Sorry for all that!
I may, if there is demand, change the internal data flow to re-gain some of this functionality and to also provide you with a fully translated website.
Please don't hesitate to ask for more/missing functionality or for me to bring back anything that was lost in the latest update.
As many people, I have not much of a clue what these laws exactly require me to do and I am rather safe than sorry. I don't usually work much on websites, so this is not my area of expertise.

Best regards,
Benedikt
Pages: 1 2 [3] 4 5 ... 10