Printable View
I found no better place to put this on the forum, alright!
First, how the hell do you go about afixing 2 sheets of Polycarbonate together?
Secondly, I have a pic of my drive on my profile any idea how to mount the fixed axle to polycarbonate? Should I cut a hole the same size as the axle and slide it through the polycarb panels or cut the axle and affix it with screws/bolts?
Suggestions welcome.
1) Bolt, glue, weld, rivet...
2) A through hole will spread the load better, although cutting the axle down will reduce weight.
I glued 2 6mm sheets together to make 12mm , just used some 2 part araldite , simple and strong !
I use mastic glue a lot, and it works rather well on things like PC or ali, or combinations. The only thing that isnt glued well is HDPE.
But this is only advisable for large surfaces.
The axle , cut it down. Saves weight.
There is no such thing as a rookie question either. I know sod all about pneumatics and so would be a rookie asking about them but ask me a question about spinners, no problem!
Are you mounting the axle on both sides of the wheel? Or just very rigidly on the one side?
quote:
Are you mounting the axle on both sides of the wheel? Or just very rigidly on the one side? - Dave moulds
Eventually, both. In the meantime just the one side due to a lack of plannning with respect to the armour.
I think I have a plan how to fix the axle, but tell me how do you bolt polycarb panels together?
drill a hole in each panel, put a bolt throw both holes and attach a nut.
Unless I have missed something?
Be careful not to drill the hole too near the edge of the poly to avoid cracking or to weaken the poly during drilling.
Chris - ^_^
Or to attach thicker pieces at right angles, drill a hole going through into the material, tap hole, put bolt in.
Drawing, even on paint would help methinks :)
updated pic on profile. I am trying to screw/bolt the bulkheads to a polycarb base.
All suggestions welcome.
Use something like Ali angle that you can get form any DIY store like B&Q. Then nuts and bolts to hold it all together. Thats the most simple and strong way to do it. And very reliable.
Mr Stu
um, this may sound like a silly question
are the wheels and gears from a floor roller exercise machine (looks like a breadbin with handles, and you roll it back and forth to get nice belly somethingorothers)
if so, those gold motors will shread the gears, they are very soft.
if not, appologies, what are they made of?
Look like wheels and gears from technobots to me, though could be mistaken. :wink:
Ill second stus angle metal idea.
I third stus angle ali. however its best not to hold polycarbonate rigid as it could crack. try putting strips of rubber between the polycarb and the angle ali.
Reason i asked whether you are supporting your axle from the one side is because a bolt holding the axle out from the polycarb wont be very strong at all. If you have access to a lathe you could try something like this: http://news.terrorhurtz.com/2003/sidebulk.jpghttp://news.terrorhurtz.com/2003/sidebulk.jpg
Seems to do the job on THZ
Deffinatly stus suggestion of angle ali. for axle, if its mounted on one side, drill straight through polycarb, make a flange on thend of the axle and slide it through, then drill and tap the flange and bolt it to the polycarb. This will give you the best load distribution. ( i hope you can work out what i mean lol)
Cheers guys, I had considered something similar to the angle ali idea but I wanted to check for a lighter suggestion. You know the weight limit worries!
As for the gear, Ill see if I can find something light to hold the axle in one place for the time being
quote:
Are the wheels and gears from a floor roller exercise machine? - James Baker
Sorry James but no. The gears are (quite rightly guessed, Ewan) from technobots and the wheels are from a hardware store